Multimedia Signal Processing Group Publications
Papers in International Conference Proceedings
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2011 |
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Ascenso, J.; Brites , C.; Pereira, F.; "Augmented LDPC Graph for Distributed Video Coding with Multiple Side Information", Proc IEEE Workshop on MultiMedia Signal Processing - MMSP, Hangzhou, China, October 2011 |
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Ascenso, J.; Brites , C.; Pereira, F.; "A Denoising Approach for Iterative Side Information Creation in Distributed Video Coding", Proc IEEE International Conf. on Image Processing - ICIP, Brussels, Belgium, September 2011 |
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M. Ramalho; Correia, P.L.; Soares, L. D.; "Distributed Source Coding for Securing a Hand-Based Biometric Recognition System", Proc IEEE International Conf. on Image Processing - ICIP, Brussels, Belgium, September 2011 |
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C. Conti; J. Lino; Nunes, P.; Soares, L. D.; Correia, P.L.; "Spatial Prediction Based on Self-Similarity Compensation for 3D Holoscopic Image and Video Coding", Proc IEEE International Conf. on Image Processing - ICIP, Brussels, Belgium, September 2011 |
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Naccari, M. ; Brites , C.; Ascenso, J.; Pereira, F.; "Low complexity deblocking filter perceptual optimization for the HEVC codec", Proc IEEE International Conf. on Image Processing - ICIP, Brussels, Belgium, September 2011 |
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Pereira, F.; "Panel on 'Quality of Experience in Applications, Standardization and Certification'", Proc International Workshop on Quality of Multimedia Experience - QoMEX, Mechelen, Belgium, September 2011 |
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C. Conti; J. Lino; Nunes, P.; Soares, L. D.; Correia, P.L.; "Improved Spatial Prediction for 3D Holoscopic Image and Video Coding", Proc European Signal Processing Conf. - EUSIPCO, Barcelona, Spain, August 2011 |
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M. Ramalho; S. Sanchit; Correia, P.L.; Soares, L. D.; "Secure Multi-Spectral Hand Recognition System", Proc European Signal Processing Conf. - EUSIPCO, Barcelona, Spain, August 2011 |
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GC Carmo; Naccari, M. ; Pereira, F.; "Binary tree decomposition depth coding for 3D video applications", Proc IEEE International Conf. on Multimedia and Expo - ICME, Barcelona, Spain, July 2011 |
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Brandăo, T.; M. Chin; Queluz, M.P.; "From PSNR to perceived quality in H.264 encoded video sequences", Proc EuroITV, Lisbon, Portugal, July 2011 |
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Naccari, M. ; Pereira, F.; "Integrating a spatial just noticeable distortion model in the under development HEVC codec", Proc IEEE International Conf. on Acoustics, Speech, and Signal Processing - ICASSP, Prague, Czech Republic, May 2011 |
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2010 |
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Vieira, P.; Queluz, M.P.; Rodrigues, A. J.; "LTE Multi Antenna Bit Rate Expectation for Urban Macro-cell Networks", Proc IBERSENSOR 2010 - 7th Ibero-American Congress on Sensors, Lisbon, Portugal, Vol. 1, pp. 1 - 1, November, 2010 |
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Sousa, I.; Sena da Silva, F. S. ; Queluz, M.P.; Rodrigues, A. J.; "Location Error Spatial Distribution in Cellular Mobile Systems", Proc Wireless Personal Multimedia Communications Symp. - WPMC, Recife, Brazil, Vol. 1, pp. 1 - 1, October, 2010 |
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H. Oliveira, J. Caeiro, P. L. Correia, "Improved Road Crack Detection Based on One-class Parzen Density Estimation and Entropy Reduction", Int. Conf. on Image Processing (ICIP'2010), Hong Kong, September 2010 |
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M. Naccari, F. Pereira, “Decoder side just noticeable distortion model estimation for efficient H.264/AVC based perceptual video coding”, Int. Conf. on Image Processing (ICIP'2010), Hong Kong, September 2010 |
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C. Brites, F. Pereira, “Probability updating for decoder and encoder rate control turbo based Wyner-Ziv video coding”, Int. Conf. on Image Processing (ICIP'2010), Hong Kong, September 2010 |
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Pereira, F.; "Video compression: enabling more exciting experiences …", Proc International Telecommunications Symp., Manaus, Brazil, September 2010 |
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H. Oliveira, P. L. Correia, "Automatic Crack Detection on Road Imagery Using Anisotropic Diffusion and Region Linkage", European Signal Processing Conference (EUSIPCO’2010), Aalborg, Denmark, August 2010 |
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T. Santos, L. Ducla Soares, P. L. Correia, "Iris Verification System with Secure Template Storage", European Signal Processing Conference (EUSIPCO’2010), Aalborg, Denmark, August 2010 |
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J. Ascenso, C. Brites, F. Dufaux, A. Fernando, T. Ebrahimi, F. Pereira, S. Tubaro, “The VISNET II DVC codec: architecture tools and performance”, European Signal Processing Conference (EUSIPCO’2010), Aalborg, Denmark, August 2010 |
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R.T. Trindade, P. L. Correia, M. S. Santos, "Multimedia Sharing over the Internet from a Mobile Phone", International Workshop on Future Multimedia Networking (FMN'2010), Krakov, Poland, Vol. LNCS 6157, pp. 13 - 23, June 2010 Best paper award |
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T. Gonçalves, R. J. Lopes, P. Nunes, "Using metadata in video quality assessment based on the structural similarity (SSIM) index metric", International Workshop on Quality of Experience for Multimedia Content Sharing - QoEMCS, Tampere, Finland, June 2010 |
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H. Oliveira, P. L. Correia, "Automatic analysis of road pavement surface imagery", International Road Federation - World Meeting - IRF2010, Lisbon, Portugal, May, 2010 |
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T. Santos; Soares, L. D.; Correia, P.L.; "Secure Iris Verification using a Universal Noise Mask", Proc Workshop on Privacy and Security for Biometrics, Las Palmas de Gran Canaria, Spain, May 2010 |
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M. Naccari, F. Pereira, “Comparing spatial masking modeling in just noticeable distortion controlled H.264/AVC video coding”, Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS’2010), Desenzano del Garda, Italy, April 2010 |
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F. De Simone; Naccari, M. ; M. Tagliasacchi; S. Tubaro; T.E. Ebrahimi; "A H.264/AVC video database for the evaluation of quality metrics", Proc IEEE International Conf. on Acoustics, Speech, and Signal Processing - ICASSP, Dallas, United States, Vol. 1, pp. 1 - 4, March, 2010 |
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T. Brandăo, M.P. Queluz; "No-reference perceptual quality metric for H.264 encoded video", Proc. of International Workshop on Video Processing and Quality Metrics for Consumer Electronics (VPQM 2010), Scottsdale, USA, January 2010 |
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J. Ascenso, C. Brites, F. Pereira, “Compression efficiency analysis of Wyner-Ziv video coding with motion compensated side information interpolation”, Visual Information Processing and Communication Conference, San Jose, CA, USA, January 2010 |
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2009 |
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P. Nunes, L. Ducla Soares, F. Pereira, “Automatic and adaptive network-aware macroblock intra refresh for error-resilient H.264/AVC video coding”, Int. Conf. on Image Processing, Cairo, Egypt, November 2009 |
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J. Ascenso, F. Pereira, “Complexity efficient mechanism for LDPC based Wyner-Ziv video decoding”, 5th International Mobile Multimedia Communications Conference, London, United Kingdom, September 2009 |
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H. Oliveira; P. L. Correia, "Automatic Road Crack Segmentation Using Entropy and Image Dynamic Thresholding", Proc European Signal Processing Conf. - EUSIPCO, Glasgow, United Kingdom, August 2009 |
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P. Rosa; P. L. Correia, "Automatic Road Pavement Crack Detection using Boosting Classifiers", Proc European Signal Processing Conf. - EUSIPCO, Glasgow, United Kingdom, August, 2009 |
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J. Ascenso, F. Pereira, “Low complexity intra mode selection for efficient distributed video coding”, IEEE International Conference on Multimedia & Expo (ICME’2009), New York, USA, July 2009 |
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X. Huang, C. Brites, J. Ascenso, F. Pereira, S. Forchhammer, “Distributed video coding with multiple side information”, Picture Coding Symposium (PCS’09), Chicago, IL, USA, May 2009 |
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D. Santos; P. L. Correia; "Car Recognition Based on Back Lights and Rear View Features", Proc Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS 2009), London, United Kingdom, May 2009 |
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D. Couto; P. L. Correia; "An Objective Metric for the Evaluation of Image Segmentation Quality Using Human Visual System Characteristics", Proc International Workshop on Video Processing and Quality Metrics for Consumer Electronics (VPQM 2009), Scottsdale, United States, January 2009 |
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2008 |
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H. Oliveira; T. Sanches, P. L. Correia, “Identifying And Retrieving Distress Images from Road Pavement Surveys”, Proc. ICIP Workshop on Multimedia Information Retrieval: New Trends and Challenges, San Diego, CA, USA, October 2008 |
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J. Ascenso, C. Brites, F. Pereira, “Design and performance of a novel low-density parity-check code for distributed video coding”, Int. Conf. on Image Processing (ICIP’2008), San Diego, CA, USA, October 2008 |
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P. Nunes, L. Ducla Soares, F. Pereira, “Error resilient macroblock rate control for H.264/AVC video coding”, Int. Conf. on Image Processing (ICIP’2008), San Diego, CA, USA, October 2008 |
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M. Naccari, M. Tagliasacchi, F. Pereira, S. Tubaro, “No-reference modeling of the channel induced distortion at the decoder for H.264/AVC video coding”, Int. Conf. on Image Processing (ICIP’2008), San Diego, CA, USA, October 2008 |
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J. D. Areia, F. Pereira, W.A.C. Fernando, “Impact of the key frames quality on the overall Wyner-Ziv video coding performance”, 50th International Symposium ELMAR-2008, Zadar, Croatia, September 2008 |
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H. Oliveira; P. L. Correia; “Supervised Strategies for Cracks Detection in Images of Road Pavement Flexible Surfaces”, European Signal Processing Conference (EUSIPCO’2008), Lausanne, Switzerland, August 2008 |
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L. Yee; P. L. Correia; P.F. Fonseca; A.C. Campos, “I2N2: A Software for the classification of benthic habitats characteristics”, European Signal Processing Conference (EUSIPCO’2008), Lausanne, Switzerland, August 2008 |
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T. Brandăo, M.P. Queluz; "No-reference PSNR estimation algorithm for H.264 encoded video sequences", Proc. of European Signal Processing Conference (EUSIPCO’2008), Lausanne, Switzerland, August 2008 |
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J. D. Areia, J. Ascenso, C. Brites, F. Pereira, “Low complexity hybrid rate control for lower complexity Wyner-Ziv video decoding”, European Signal Processing Conference (EUSIPCO’2008), Lausanne, Switzerland, August 2008 |
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F. Pereira, “Analysis for video coding: moving it from the encoder to the decoder”, invited talk at the International Conference on Image Analysis and Recognition (ICIAR), Póvoa de Varzim, Portugal, June 2008 |
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F. Pereira, C. Brites, J. Ascenso, M. Tagliasacchi, “Wyner-Ziv video coding: a review of the early architectures and further developments”, IEEE International Conference on Multimedia & Expo (ICME), Hannover, Germany, June 2008 |
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C. Paulo; P. L. Correia, “Traffic Sign Recognition Based on Pictogram Contours”, Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS’2008), Klagenfurt, Austria, May 2008 |
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N. Matos, F. Pereira, “Using MPEG-7 for generic audiovisual content automatic summarization”, Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS’2008), Klagenfurt, Austria, May 2008 |
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J. Ascenso, F. Pereira, “Hierarchical motion estimation for side information creation in Wyner-Ziv video coding”, The Second International Conference on Ubiquitous Information Management and Communication (ICUIMC’08), Suwon, Korea, February 2008 |
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F. Pereira, “Developments and trends on video coding: is there a xVC virus ?”, invited talk at The Second International Conference on Ubiquitous Information Management and Communication (ICUIMC’08), Suwon, Korea, February 2008 |
| 2007 | |
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F. Pereira, J. Ascenso, C. Brites, “Studying the GOP size impact on the performance of a feedback channel-based Wyner-Ziv video codec”, IEEE Pacific Rim Symposium on Image Video and Technology, Santiago, Chile, Dec. 2007 |
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T. Brandăo, M.P. Queluz; “Blind PSNR estimation of video sequences using quantized DCT coefficient data”, Picture Coding Symposium , PCS’2007, Lisboa, Portugal, Nov. 2007 |
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X. Artigas, J. Ascenso, M. Dalai, S. Klomp, D. Kubasov, M. Ouaret, “The DISCOVER codec: Architecture, Techniques and Evaluation”, Picture Coding Symposium , PCS’2007, Lisboa, Portugal, Nov. 2007 |
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P. Nunes, G. Pastuszak, A. Pietrasiewicz, F. Pereira, “Joint bit-allocation for multi-sequence H.264/AVC video coding rate control”, Picture Coding Symposium , PCS’2007, Lisboa, Portugal, Nov. 2007 |
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J. Pedro, L. Ducla Soares, C. Brites, J. Ascenso, F. Pereira, C. Bandeirinha, S. Ye, F. Dufaux, T. Ebrahimi, “Studying error resilience performance for a feedback channel based transform domain Wyner-Ziv video codec”, Picture Coding Symposium , PCS’2007, Lisboa, Portugal, Nov. 2007 |
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M. Naccari, G. Bressan, M. Tagliasacchi, F. Pereira, S. Tubaro, “Unequal error protection based on flexible macroblock ordering for robust H.264/AVC video transcoding”, Picture Coding Symposium , PCS’2007, Lisboa, Portugal, Nov. 2007 |
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J. D. Areia, C. Brites, J. Ascenso, F. Pereira, “Wyner-Ziv stereo video coding using a side information fusion approach”, Int. Workshop on Multimedia Signal Processing (MMSP’07), Chania, Greece, Oct. 2007 |
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C. Brites, F. Pereira, “Encoder rate control for transform domain Wyner-Ziv video coding”, Proc. of the IEEE International Conference on Image Processing, ICIP’2007, San Antonio, TX - USA, Sept. 2007 |
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P. Nunes, F. Pereira, “Improved feedback compensation mechanisms for multiple video object encoding rate control”, Proc. of the IEEE International Conference on Image Processing, ICIP’2007, San Antonio, TX - USA, Sept. 2007 |
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J. Ascenso, F. Pereira, “Adaptive hash-based side information exploitation for efficient Wyner-Ziv video coding”, Proc. of the IEEE International Conference on Image Processing, ICIP’2007, San Antonio, TX - USA, Sept. 2007 |
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T. Sanches, J. Antunes, P. L. Correia, “A Single Sensor Hand Biometric Multimodal System”, Proceedings of the 15th European Signal Processing Conference, EUSIPCO'2007, Poznan, Poland, Sept. 2007 |
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P. L. Correia, P.Y. Lau, P. Fonseca, A. Campos, “Underwater Video Analysis for Norway Lobster Stock Quantification Using Multiple Visual Attention Features”, Proceedings of the 15th European Signal Processing Conference, EUSIPCO'2007, Poznan, Poland, Sept. 2007 |
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T. Brandăo, M. P. Queluz, “Blind perceptual quality assessment method for DCT-based encoded images”, Proceedings of the 15th European Signal Processing Conference, EUSIPCO'2007, Poznan, Poland, Sept. 2007 |
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M. Tagliasacchi, J. Pedro, F. Pereira, S. Tubaro, “An efficient request stopping method at the turbo decoder in distributed video coding”, Proceedings of the 15th European Signal Processing Conference, EUSIPCO'2007, Poznan, Poland, Sept. 2007 |
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P.Y. Lau, P. L. Correia, “Detection of Bleeding Patterns in WCE Video using Multiple Features”, Proceedings of the International Conf. of the IEEE Engineering in Medicine and Biology Society, EMBC'2007, Lyon, France, Aug. 2007 |
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S. Yamagiwa, L. Sousa, T. BrandĂŁo, “Meta-pipeline: a new execution mechanism for distributed pipeline processing”, Proc. of International Symp. on Parallel and Distributed Computing - ISPDC, Hagenberg, Austria, July 2007 |
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C. Paulo, P. L. Correia, “Automatic Detection and Classification of Traffic Signs”, Proceedings of the 8th Workshop on Image Analysis for Multimedia Interactive Services, WIAMIS'2007, Santorini, Greece, June 2007 |
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P. L. Correia, P.Y. Lau, P. Fonseca, A. Campos, “Automating Norway Lobster Counting Using Underwater Video Analysis”, Workshop of the ICES-FAO Working Group on Fishing Technology and Fish Behaviour, WGFTFB'2007, Dublin, Ireland, April 2007 |
| 2006 | |
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E. Martinian, A. Vetro, J. S. Yedidia, J. Ascenso, A. Khisti, D. Malioutov, “Hybrid Distributed Video Coding Using SCA Codes” Proc. of the IEEE International Workshop on Multimedia Signal Processing, Victoria, Canada, October 2006 |
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L. Ducla Soares, F. Pereira, “Spatio-Temporal Scene Level Error Concealment for Shape and Texture Data in Segmented Video Content” Proc. of the IEEE International Conference on Image Processing, ICIPÂ’2006, Atlanta, GA, USA, October 2006 |
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T. Brandăo, P. Queluz, “Towards Objective Metrics for Blind Assessment of Images Quality” Proc. of the IEEE International Conference on Image Processing, ICIPÂ’2006, Atlanta, GA, USA, October 2006 |
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C. Brites, J. Ascenso, F. Pereira, “Studying Temporal Correlation Noise Modeling for Pixel Based Wyner-Ziv Video Coding”, IEEE International Conference on Image Processing, ICIP'2006, Atlanta, USA, October 2006 |
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J. Ascenso, C. Brites, F. Pereira, “Content Adaptive Wyner-Ziv Video Coding Driven by Motion Activity”, IEEE International Conference on Image Processing, ICIP'2006, Atlanta, USA, October 2006 |
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M. Tagliasacchi, A. Trapanese, S. Tubaro, J. Ascenso, C. Brites, F. Pereira, “Exploiting Spatial Redundancy in Pixel Domain Wyner-Ziv Video Coding”, IEEE International Conference on Image Processing (ICIP), Atlanta, USA, October 2006 |
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T. Brandăo, P. Queluz, “Blind PSNR estimation of video sequences, through non-uniform quantization watermarking”, International Conference on Image Analysis and Recognition (ICIAR), Lecture Notes on Computer Science, Vol. 4141, Póvoa de Varzim, Portugal, September 2006 |
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C. Brites, J. Ascenso, F. Pereira, “Feedback Channel in Pixel Domain Wyner-Ziv Video Coding: Myths and Realities”, 14th European Signal Processing Conference (EUSIPCO), Florence, Italy, September 2006 |
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C. Brites, J. Ascenso, F. Pereira, “Improving Transform Domain Wyner-Ziv Video Coding Performance”, IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Toulouse, France, May 2006 |
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M. Tagliasacchi, A. Trapanese, S. Tubaro, J. Ascenso, C. Brites, F. Pereira, “Intra Mode Decision Based on Spatio-Temporal Cues In Pixel Domain Wyner-Ziv Video Coding”, IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Toulouse, France, May 2006 |
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L. Ducla Soares, F. Pereira, “Spatial Scene Level Shape Error Concealment for Segmented Video” Proc. of the Picture Coding Symposium (PCS’2006), Beijing, China, April 2006 |
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C. Brites, J. Ascenso, F. Pereira, “Modeling Correlation Noise Statistics at Decoder for Pixel Based Wyner-Ziv Video Coding”, Picture Coding Symposium (PCS'2006), Beijing, China, April 2006 |
| 2005 | |
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D. Santos, J. Fazenda, P. Correia, “Using Gait to Recognize People”, Proc EUROCON – The International Conference on “Computer as a Tool” , Belgrado, Servia & Montenegro , Nov. 2005 |
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J. Ascenso, C. Brites, F. Pereira, “Motion Compensated Refinement for Low Complexity Pixel Based Distributed Video Coding”, IEEE International Conference on Advanced Video and Signal Based Surveillance (AVSS), Como, Italy, September 2005 |
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L. Natário, C. Brites, J. Ascenso, F. Pereira, “Side Information Extrapolation for Low-Delay Pixel-Domain Distributed Video Coding”, International Workshop on Very Low Bitrate Video (VLBV), Sardinia, Italy, September 2005 |
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A. Trapanese, M. Tagliasacchi, S. Tubaro, J. Ascenso, C. Brites, F. Pereira, “Improved Correlation Noise Statistics Modeling in Frame-Based Pixel Domain Wyner-Ziv Video Coding”, International Workshop on Very Low Bitrate Video (VLBV), Sardinia, Italy, September 2005 |
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A. Trapanese, M. Tagliasacchi, S. Tubaro, J. Ascenso, C. Brites, F. Pereira, “Embedding a Block-Based Intra Mode in Frame-Based Pixel Domain Wyner-Ziv Video Coding”, International Workshop on Very Low Bitrate Video (VLBV), Sardinia, Italy, September 2005 |
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J. Ascenso, C. Brites, F. Pereira, “Improving Frame Interpolation with Spatial Motion Smoothing for Pixel Domain Distributed Video Coding”, 5th EURASIP Conference on Speech and Image Processing, Multimedia Communications and Services, Slovak Republic, July 2005 |
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L. Ducla Soares, F. Pereira, “Spatial Texture Error Concealment for Object-based Image and Video Coding,” Proc. of the EURASIP Conference focused on Signal and Image Processing, Multimedia Communications and Services, Smolenice, Slovak Republic, June 2005 |
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2004 |
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L. Ducla Soares, F. Pereira, “Combining Space and Time Processing for Shape Error Concealment” Proc. of the Picture Coding Symposium (PCS’2004), San Francisco, CA, USA, December 2004 |
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L. Ducla Soares, F. Pereira, “Motion-based Shape Error Concealment for Object-based Video” Proc. of the IEEE International Conference on Image Processing (ICIP’2004), Singapore, October 2004 |
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L. Ducla Soares, F. Pereira, “Temporal Shape Error Concealment for Object-based Video”, Proc. of the International Symposium on Image/Video Communications over Fixed and Mobile Networks (ISIVC’2004), Brest, France, July 2004 |
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L. Ducla Soares, F. Pereira, “Temporal shape error concealment by global motion compensation”, 5th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS’2004), Lisboa – Portugal, April 2004 |
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P. Correia, F. Pereira, “Change detection-based video segmentation for surveillance applications”, 5th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMISÂ’2004), Lisboa – Portugal, April 2004 |
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P. Nunes, F. Pereira, “Rate and distortion modeling analysis for mpeg-4 video intra coding”, 5th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMISÂ’2004), Lisboa – Portugal, April 2004 |
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J. Ascenso, F. Pereira, “H.264/AVC fine grain scalability using bitplane coding”, 5th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS’2004), Lisboa – Portugal, April 2004 |
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2003 |
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F. Pereira, “Content adaptation: the panacea for usage diversity ?”, in “Visual Content Processing and Representation”, Lectures Notes in Computer Science, Springer, pp. 9-12, September 2003 |
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P. Correia; F. Pereira; "Methodology for Objective Evaluation of Video Segmentation", Proc. Visual Communications and Image Processing (VCIP), Lugano, Switzerland, July 2003 |
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P. Fonseca; F. Pereira; P. L. Correia; "Using MPEG-7 Descriptions to Create Video Summaries", Proc Transmitting Processing and Watermarking Multimedia Contents, Bordeaux, France, pp. 71 - 76, April 2003 |
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P. Fonseca; F. Pereira; "Skin Colour Detection Based on the MPEG-7 Dominant Colour Descriptor", Proc Picture Coding Symp (PCS)., Saint-Malo, France, April 2003 |
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P. Fonseca; F. Pereira; "Automatic Video Summarization Based on MPEG-7 Descriptions", Proc Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS 2003), London, United Kingdom, April 2003 |
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P. Correia; F. Pereira; "A Proposal for the Classification of Video Segmentation Application Scenarios", Proc Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS 2003), London, United Kingdom, pp. 188 - 195, April 2003 |
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2002 |
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L. Soares; F. Pereira; "Adaptive Shape-Texture Intra Coding Refreshment for Error Resilient Object-Based Video", Proc IEEE Workshop on MultiMedia Signal Processing - MMSP, St. Thomas, Virgin Islands, Dec. 2002 |
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M. P. Queluz.; T. BrandĂŁo; A. J. Rodrigues; "Signal Combining Techniques for Video Watermarking Extraction", Proc IEEE Workshop on MultiMedia Signal Processing - MMSP, St. Thomas, United States, Dec. 2002 |
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F. Pereira; "MPEG-21 framework: more than just multimedia technologies", Proc European Symposium on Intelligent Technologies, Hybrid Systems and their implementation on Smart Adaptive Systems, Albufeira, Portugal, Sept. 2002 |
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L. D. Soares; F. Pereira; "Shape Refreshment Need Metric for Object-Based Resilient Video Coding", Proc IEEE International Conf. on Image Processing - ICIP, Rochester, United States, Vol. 1, pp. 173 - 176, Sept. 2002 |
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L. D. Soares; F. Pereira; "Texture Refreshment Need Metric for Resilient Object-based Video Coding", Proc IEEE International Conf. on Multimedia and Expo - ICME, Lausanne, Switzerland, Aug. 2002 |
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F. Pereira; "MPEG-4 and MPEG-7: audiovisual standards for the XXIst century?", Proc The International Festival for Digital Images - IMAGINA, Monte Carlo, Monaco, Feb. 2002 |
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2001 |
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J. Valentim; P. Nunes; F. Pereira; "An Alternative Complexity Model for the MPEG-4 Video Verifier Mechanism", Proc IEEE International Conf. on Image Processing - ICIP, Thessaloniki, Greece, Vol. I, pp. 461 - 464, Oct. 2001 |
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T. Brandăo, M.P. Queluz, A. Rodrigues, “On the use of Error Correction Codes in Spread Spectrum Based Image Watermarking”, IEEE Pacific-Rim Conference on Multimedia Special Session on Watermarking, Beijing, China, Oct. 2001 |
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F. Pereira; "MPEG-21 standard: why an open multimedia framework ?", Proc International Workshop on Interactive Distributed Multimedia Systems, Lancaster, United Kingdom, Sept. 2001 |
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J. Rocha, M.P. Queluz, “Integration of Census Data, Remote Sensing and GIS Techniques for Land Use/Cover Classification”, 8th International Symposium on Remote Sensing, Toulouse, France, Sept. 2001 |
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M.P. Queluz, T. Brandăo, A. Rodrigues, “Diversity enhancement of coded spread spectrum video watermarking”, 4th International Symposium on Wireless Personal Multimedia Communications (WPMC'01), Aalborg, Denmark, Sept. 2001, pp. 417-422 |
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J. Valentim; P. Nunes; F. Pereira; "Evaluating MPEG-4 video decoding complexity", Proc Workshop and Exhibition on MPEG-4, San Jose, United States, June 2001 |
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P. L. Correia; F. Pereira; "Standalone Objective Evaluation of Segmentation Quality", Proc Workshop on Image Analysis for Multimedia Interactive Services WIAMIS, Tampere, Finland, May 2001 |
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T. Brandăo, M.P. Queluz, A. Rodrigues, “Performance Improvement of Spatial Watermarking Through Efficient Non-binary Channel Coding”, IS&T/SPIE - Electronic Imaging01 - Security and Watermarking of Multimedia Contents III, San Jose, USA, Jan. 2001 |
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P. Nunes; F. Pereira; "Scene Level Rate Control Algorithm for MPEG-4 Video Encoding", Proc Visual Communications and Image Processing VCIP, San Jose, United States, Vol. 4310, pp. 194 - 205, Jan, 2001 |
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2000 |
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F. Pereira; "MPEG-7: multimedia content description standard", Proc Korean Telecom International Symp., Seoul, Korea, South, Oct. 2000 |
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P. Nunes; F. Pereira; "MPEG-4 Compliant Video Encoding: Analysis and Rate Control Strategies", Proc Asilomar Conf. on Signals, Systems, and Computers, Pacific Grove, United States, Oct. 2000 |
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L. Ducla Soares, S. Adachi, F. Pereira, “Influence of Encoder Parameters on the Decoded Video Quality for MPEG-4 over W-CDMA Mobile Networks”, Int. Conference on Image Processing (ICIP), Vancouver, Canada, September10-13, 2000 |
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P. Correia, F. Pereira, “Objective Evaluation of Relative Segmentation Quality”, Int. Conference on Image Processing (ICIP), Vancouver, Canada, September10-13, 2000 |
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F. Marqués, B. Marcotegui, F. Zanoguera, P. Correia, R. Mech, M. Wollborn, “Partition-Based Image Representation as Basis for User-Assisted Segmentation”, Int. Conference on Image Processing (ICIP), Vancouver, Canada, September10-13, 2000 |
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F. Pereira, “Visual Data Representation: Recent Achievements and Future Developments”, EUSIPCO'2000, Tampere, Finland, 5-8 September, 2000 |
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P. Correia, F. Pereira, “Estimation of Video ObjectÂ’s Relevance”, EUSIPCO'2000, Tampere, Finland, 5-8 September, 2000 |
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C. Zibreira; F. Pereira; "Image description and retrieval using MPEG-7 shape descriptors", Proc European Conf. on Research and Advanced Technology for Digital Libraries, Lisboa, Portugal, Sept. 2000 |
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M.P. Queluz and P. Lamy, "Spatial Watermark for Image Verification", IST&SPIE - Electronic Imaging 2000, San Jose, January 2000 |
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1999 |
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F. Pereira, "The MPEG-7 standard: a challenge to describe multimedia information", invited speech at European Workshop on Content-Based Multimedia Indexing (CBMI’99), Toulouse – France, October 1999 |
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B. Marcotegui, P. Correia, F. Marques, R. Mech, R. Rosa, M. Wollborn and F. Zanoguera, "A Video Object Generation Tool Allowing Friendly User Interaction", ICIP'99, Kobe, Japan, October 25-28, 1999 |
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P. Salembier, N. O'Connor, P. Correia and F. Pereira, "Hierarchical Visual Description Schemes for Still Images and Video Sequences", ICIP'99, Kobe, Japan, October 25-28, 1999 |
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S. Adachi, L. Ducla Soares, "A Study on Optimal Parameters for Error Resilience Tools of MPEG-4 Video", Proc. of Picture Coding Symposium of Japan 1999 (PCSJ99), pp. 55-56, September 1999 (in Japanese) |
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N. E. O'Connor, P. Salembier, P. Correia, L. Ward; "The DICEMAN Description Schemes for Still Images and Video Sequences", WIAMIS'99 - Workshop on Image Analysis for Multimedia Interactive Services, Berlin, Germany, 31 May - 1 June 1999, pp. 149-152 |
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B. Marcotegui, P. Correia, F. Marques, R. Mech, R. Rosa, M. Wollborn, F. Zanoguera; "VOGUE: The MoMuSys Video Object Generator with User Environment", WIAMIS'99 - Workshop on Image Analysis for Multimedia Interactive Services, Berlin, Germany, 31 May - 1 June 1999, pp. 25-28 |
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P. Nunes, F. Pereira, "Object-based rate control for the MPEG-4 visual simple profile", Workshop on Image Analysis for Multimedia Interactive Services’ 99 (WIAMIS'99), Berlin - Germany, May 1999 |
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M. P. Queluz, "Content-Based Integrity Protection of Digital Images", "IS&T/SPIE - Electronic ImagingÂ’99 - Security and Watermarking of Multimedia Contents", San Jose, January 1999 |
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F.Pereira, "MPEG-7: a standard for describing audiovisual information", invited talk at Colloquium on Multimedia databases and MPEG-7, London – UK, January 1999 |
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1998 |
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G. Abrantes, F. Pereira, "Interactive analysis for MPEG-4 facial models configuration", Eurographics’98, Lisbon – Portugal, September 1998 |
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L. Ducla Soares, F. Pereira, "MPEG-4: A Flexible Coding Standard for the Emerging Mobile Multimedia Applications", Proc. of the International Symposium on Personal, Indoor, and Mobile Radio Communications 1998 (PIMRC’98), Boston, Ma., September 1998 |
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P. Correia, F. Pereira; "User Interaction in Content-Based Video Coding and Indexing", Proceedings of EUSIPCO'98, Rhodes, Greece, September 1998 |
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L. Ducla Soares, F. Pereira, "An Alternative to the MPEG-4 Object-Based Error Resilient Video Syntax", Proc. of the International Conference on Image Processing 1998 (ICIP’98), Chicago, Il., October 1998 |
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P. Correia, F. Pereira; "Proposal for an Integrated Video Analysis Framework", Proc. of the International Conference on Image Processing 1998 (ICIP’98), Chicago, Il., October 1998 |
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M. P. Queluz, "Towards Robust, Content-Based Techniques for Image Authentication", 1998 IEEE Second Workshop on Multimedia Signal Processing, pp. 297-302, Los Angeles, December 1998 |
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1997 |
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P. Correia, F. Pereira, "Video analysis for coding: objectives, features and methods", 2nd Erlangen Symposium 'Advances in Digital Image Communication’, Erlangen - Germany, April 1997 |
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G. Abrantes, F. Pereira, "3D facial animation using the MPEG-4 SNHC verification model", ECMAST’97 Workshop on SNHC, Milan - Italy, May 1997 |
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P. Correia, F. Pereira, "Segmentation of video sequences in a video analysis framework", Workshop on Image Analysis for Multimedia Interactive Services, Louvain-La-Neuve, Belgium, June 1997 |
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F. Pereira, "Very low bitrate video: the content-based approach", Workshop on Coding Techniques for Very Low Bit-rate Video, Linkoping - Sweden, July 1997 |
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G. Abrantes, F. Pereira, "An MPEG-4 SNHC compatible implementation of a 3D facial animation system", Int. Workshop on Synthetic-Natural Hybrid Coding and Three Dimensional Imaging, Rodes - Greece, September 1997 |
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P. Nunes, F. Pereira, "Rate control for scenes with multiple arbitrarily shaped video objects", Picture Coding Symposium’97, Berlin - Germany, September 1997 |
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P. Nunes, F. Pereira, F. Marques, "Multi-grid chain coding of binary shapes", 1997 Int. Conference on Image Processing, Santa Barbara - USA, October 1997 |
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F. Pereira, "MPEG-7: a standard for content-based audiovisual description", invited speech in Sec. Int. Conference on Visual Information Systems (VISUAL’97), San Diego - USA, December 1997 |
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1996 |
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F. Pereira, "MPEG-4: a new challenge for the representation of audio-visual information", keynote speech no Picture Coding Symposium, Melbourne - Australia, March 1996 |
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L. Torres, M. Kunt, F. Pereira, "Second generation video coding schemes and their role in MPEG-4", European Conference on Multimedia Applications, Services and Techniques, Louvain-La-Neuve - Belgium, May 1996 |
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P. Nunes, F. Pereira, "Boundary detection in textured images using Markov random fields modeling", IMAGECOM’96, Bordeaux - France, May 1996 |
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F. Pereira, "The MPEG-4 standard: evolution or revolution ?", Survey lecture in Radio Science and Telecommunications’ 96, Lulea - Sweden, June 1996 |
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F. Pereira, "Very low bitrate video coding and MPEG-4: still a good relation", VIII European Signal Processing Conference, Trieste - Italy, September 1996 |
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1995 |
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F. Pereira, R. Koenen, "New trends on the standardization of multimedia information", International Conference on Multimedia Communications, Southampton - UK, April 1995 |
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F. Pereira, "MPEG-4 testing", MPEG-4 Workshop, Brussels - Belgium, July 1995 |
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F. Pereira, "MPEG-4 - The new kid on the block", Second Annual European Video and Image Compression Conference, London - UK, November 1995 |
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R. Koenen, F. Pereira, "MPEG-4: a new way towards multimedia mobile communications", RACE Mobile Telecommunications Summit, Cascais - Portugal, November 1995 |
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1994 |
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F. Pereira, "A mobile audio-visual terminal for the DECT system", MELECON'94, Antalya - Turkey, April 1994 |
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F. Pereira, "What is happening with very low bitrate audio-visual coding", RACE Mobile Workshop, Amsterdam - Netherlands, May 1994 |
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R. Koenen, F. Pereira, "MPEG-4 requirements", Very Low Bitrate Coding / MPEG-4 Workshop, Brussels - Belgium, July 1994 |
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M. P. Queluz, B. Macq, "A Split-and-Merge Motion Estimation/Compensation Technique for Very-Low Bitrate Image Coding", International Workshop on Coding Techniques for VLBR, Essex, England, 1994 |
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M.P. Queluz, X. Marichal and B. Macq, "Efficient Entropy Coding of Tree Data Structures", Picture Coding Symposium, Sacrament, USA, 1994 |
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B. Macq, X. Marichal, M.P. Queluz, "Entropy Coding of Tree Decompositions", 15o. Symposium on Information Theory in the Benelux, Louvain-la-Neuve, Belgium, 1994 |
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O. Bruyndonckx, E. Hanssens, B. Macq, X. Marichal, M.P. Queluz and B. Simon, "Coding on multigrids image sequences", WIASIC'94, October 18-19, Berlin, Germany, 1994 |
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1993 |
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D. Lappe, S. Panis, F. Pereira, M. Roser, D. Schinkel, D. Thoreau, "A proposal for a reference model for mobile video communication", Picture Coding Symposium 93, Lausanne - Switzerland, March 1993 |
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F. Seytter, F. Pereira, M. Roser, F. Dervaux, "Applications and services for a mobile audiovisual environment", Picture Coding Symposium 93, Lausanne - Switzerland, March 1993 |
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C.Pires, S.Battista, F.Pereira, " Adaptive coding of motion compensated CCIR 601 images", IMAGE'COM 93, Bordeaux - France, March 1993 |
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F.Pereira, D.Cortez, P.Nunes, "Mobile videotelephone communications: the CCITT H.261 chances", EUROPTO - Conference on Image Communications and Video Compression, Berlin - Germany, April 1993 |
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M.Sequeira, F.Pereira, "Global motion compensation and motion vector smoothing in an extended H.261 recommendation", EUROPTO - Conference on Image Communications and Video Compression, Berlin - Germany, April 1993 |
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F. Seytter, F.Pereira, M.Roser, F.Dervaux, "Services and requirements for a mobile audio-visual terminal", Workshop on Mobile Communications, Metz-France, June 1993 |
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M.M.Sequeira, F.Pereira, "Knowledge-based videotelephone sequence segmentation", Visual Communications and Image Processing' 1993, Cambridge-USA, November 1993 |
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Macq, S. Comes, J.Y. Mertes, M.P. Queluz, B. Van Caillie, "Signal-adapted Wavelet Coding of Moving Pictures", Picture Coding Symposium, Lausanne, Switzerland, 1993 |
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M.P. Queluz, H. Shi, "Image Sequence Coding Using Wavelet Transform and Finite-State Vector Quantization", IEEE workshop on Circuits, Systems and Signal Processing, Houthalen, Belgium, 1993 |
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Macq, M.P. Queluz, H. Shi, "Perceptual Vector Quantization in the Transform Domain", IEEE workshop on Circuits, Systems and Signal Processing, Houthalen, Belgium, 1993 |
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B. Macq, S. Comes, J.Y. Mertès, M.P. Queluz, "Signal-Adapted Transform Coding of Sequences", Visual Communications and Image Processing'1993, Boston, USA, 1993 |
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M.P. Queluz, B. Simon, B. Macq, "Towards a Spatio-Temporal Segmentation Technique for Very-Low Bitrate Video Coding", COST 211-ter Workshop, Hannover, Germany, 1993 |
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1992 |
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F.Pereira, C.Salema, "Cell loss resilience for B-ISDN video communications", Workshop on Broadband Communications, Estoril-Portugal, January 1992 |
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C.Pires, S.Battista, F.Pereira, C.Salema, "MPEG picture coding standards: an evolution towards computer image applications", COMPUGRAPHICS'92 - Second. Int. Conf. on Computational Graphics and Visualization Techniques, Lisbon-Portugal, December 1992 |
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M. P. Queluz, B. Macq, "An Improved Block-Matching, Region Oriented Motion Compensation Technique", 13o. Symposium on Information Theory in the Benelux, Enschede, The Netherlands, 1992 |
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M.P. Queluz, "A 3-Dimensional Subband Coding Scheme with Motion-Adaptive Subband Selection", EUSIPCO'92, Brussels, Belgium, 1992 |
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M.P. Queluz, B. Macq, "Signal-adapted Motion Compensation for Video Compression", ISSSE'92, Paris, France,1992 |
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1991 |
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C.Pires, J.Afonso, F.Pereira, "Progressive still image coding: transform analysis", MELECON'91, Lubliana, May 1991 |
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J.Afonso, C.Pires, F.Pereira, C.Salema, "Efficient ordering of block transform coefficients for image compression techniques", VI Simposium de la Union Cientifica Internacional de Radio, Cáceres-Spain, September 1991 |
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F.Pereira, "Video communications in the Broadband-Integrated Services Digital Network", International Conference on Computer Communications'91, Beijing-China, October 1991 |
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Rodrigues, M.P. Queluz and J. Rocha, "Optimization of High Impedance Optical Receivers", Melecon'91, Ljubljana, Yugoslavia, 1991 |
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V. França, C. Mendes, M. Queluz e C. Salema, "A Station for Capture, Processing and Storing of Documents", Melecon'91, Ljubljana, Yugoslavia, 1991 |
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1990 |
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F. Pereira, M.Quaglia, P.Delicati, "A VBR video coding algorithm for digital storage media", Third International Workshop on Packet Video, Morristown-USA, March 1990 |
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F. Pereira, L.Masera, "High quality still picture mode embedded into a hybrid coding scheme", Picture Coding Symposium, Cambridge-USA, March 1990 |
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F.Pereira, L.Masera, "Constant quality video coding in ATM networks: an iterative algorithm", Latvian International Signal Processing Conference, Riga, April 1990 |
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F.Pereira, "Constant quality video coding on the CCITT H.261 algorithm", IASTED International Conference on Signal Processing and Digital Filtering, Lugano-Switzerland, June 1990 |
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F.Pereira, L.Masera, "Bitrate optimization for fixed picture transmissions with an ATM adapted CCITT H.261 algorithm", 1990 Bilkent International Conference on New Trends in Communications, Control and Signal Processing, Ankara-Turkey, July 1990 |
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F.Pereira, L.Masera, "Two-layers knowledge based videophone coding", Third International Workshop on 64 kbit/s Coding of Moving Video, Roterdam-Netherlands, September 1990 |
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F.Pereira, L.Masera, "An ATM adapted video coding algorithm using knowledge based techniques", V European Signal Processing Conference, Barcelona-Spain, September 1990 |
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C.Pires, F.Pereira, J.Afonso, "The emerging JPEG coding standard: performance analysis", V Simposium de la Union Cientifica Internacional de Radio, Vigo-Spain, September 1990 |
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F.Pereira, "The variable bitrate video coding challenge", V Simposium de la Union Cientifica Internacional de Radio, Vigo-Spain, September 1990 |
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F.Pereira, L.Masera, "Two-layers constant quality video coding for ATM environments", Visual Communications and Image Processing' 90, Lausanne- Switzerland, October 1990 |
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F.Pereira, L.Masera, "Broadband video communications: the constant quality coding question", International Conference on Integrated Broadband Services and Networks, London-UK, October 1990 |
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M.P. Queluz and C. Salema, "Compression Factor and Error Sensitivity of the Modified READ Method", 1990 Bilkent International Conference on New Trends in Communication, Control and Signal Processing, Ankara, Turkey, 1990 |
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M.P. Queluz and C. Salema, "Aspects and Implementation of Group 4 - Class 1 Facsimile Protocols", 1990 Bilkent International Conference on New Trends in Communication, Control and Signal Processing, Ankara, Turkey, 1990 |
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1989 |
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F.Pereira, C.Salema, "Error sensitivity of the Modified Huffman Code", MELECON'89, Lisbon-Portugal, April 1989 |
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F.Pereira, "HDTV image coding with constant quality in an Asynchronous Transfer Mode network", Third International Workshop on HDTV, Turim-Italy, August 1989 |
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F.Pereira, L.Masera, "An ATM adapted video coding algorithm operating at low bitrates", Second International Workshop on 64 kbit/s Coding of Moving Video, Hannover-Germany, September 1989 |
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F.Pereira, L.Masera, "Constant quality coding in ATM networks: from videophone to HDTV", Workshop Technology for ATD, Paris-France, October 1989 |
