Most Relevant Scientific Publications:

• Theses (3)
• Book Chapters (3)
• International Journals (6)
• International Conferences (27)
• National Conferences (5)
• Technical Reports (6)
• Industrial Prototypes (1)

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• Nuno Roma, Transform Domain Transcoding Systems for Static and Dynamic Video Composition, PhD thesis, Instituto Superior Técnico (IST) - Universidade Técnica de Lisboa (UTL), May 2008.
• Nuno Roma, Processadores Dedicados para Estimação de Movimento em Sequências de Vídeo, MSc thesis, Instituto Superior Técnico (IST) - Universidade Técnica de Lisboa (UTL), May 2001.
• Nuno Roma, Alexandre Abreu, Sistema de Transmissão de Vídeo através da Rede Eléctrica, Graduation thesis, Instituto Superior Técnico (IST) - Universidade Técnica de Lisboa (UTL), December 1998.

• Nuno Roma, Tiago Dias, Leonel Sousa, New Algorithms, Architectures, and Applications for Reconfigurable Computing, chapter 5: "Customizable and Reduced Hardware Motion Estimation Processors", Springer-Verlag, January 2005.
• Nuno Roma, Leonel Sousa, SOC Design Methodologies, chapter "A New Efficient VLSI Architecture for Full Search Block Matching Motion Estimation", Kluwer Academic Pulishers, July 2002.
• Nuno Roma, J. Santos -Victor, José Alberto Batista Tomé, Empirical Evaluation Methods in Computer Vision, chapter "A Comparative Analysis of Cross-Correlation Matching Algorithms using a Pyramidal Resolution Approach", World Scientific Press, May 2002.

• Tiago Dias, Nuno Roma, Leonel Sousa, Miguel Ribeiro, Reconfigurable architectures and processors for real-time video motion estimation, Journal of Real-Time Image Processing - Special issue on Field-Programmable Technology, Springer Berlin, vol. 2, n. 4, pages 191-205, December 2007.
• Nuno Roma, Leonel Sousa, Efficient hybrid DCT-domain algorithm for any arbitrary integer re-size video downscaling, EURASIP Journal on Advances in Signal Processing - Special issue on Video Adaptation for Heterogeneous Environments, Hindawi, n. 57291, pages 1-16, September 2007.
• Tiago Dias, Svetislav Momcilovic, Nuno Roma, Leonel Sousa, Adaptive Motion Estimation Processor for Autonomous Video Devices, EURASIP Journal on Embedded Systems - Special Issue on Embedded Systems for Portable and Mobile Video Platforms, Hindawi, n. 57234, pages 1-10, May 2007.
• Nuno Roma, Leonel Sousa, Fast Transcoding Architectures for Insertion of Non-Regular Shaped Objects in the compressed DCT Domain, Signal Processing: Image Communication, Elsevier, vol. 18, n. 8, pages 659-683, September 2003.
• Nuno Roma, Leonel Sousa, Automatic Synthesis of Motion Estimation Processors Based on a New Class of Hardware Architectures, Journal of VLSI Signal Processing-Systems for Signal, Image, and Video Technology, Kluwer, vol. 34, n. 3, pages 277--290, July 2003.
• Nuno Roma, Leonel Sousa, Efficient and Configurable Full Search Block Matching Processors, IEEE Transactions on Circuits and Systems for Video Technology, IEEE, vol. 12, n. 12, pages 1160-1167, December 2002.

• Tiago Dias, Nuno Roma, Leonel Sousa, Hardware/Software co-design of H.264/AVC encoders for multi-core embedded systems, In Conference on Design and Architectures for Signal and Image Processing (DASIP2010), July 2010.
• Tiago Dias, Nuno Roma, Leonel Sousa, H.264/AVC framework for multi-core embedded video encoders, In International Symposium on System-on-Chip (SOC2010), June 2010.
• Nuno Sebastião, Tiago Dias, Nuno Roma, Paulo Flores, Integrated Accelerator Architecture for DNA Sequences Alignment with Enhanced Traceback Phase, In International Conference on High Performance Computing & Simulation (HPCS 2010), pages 16-23, June 2010.
• António Manuel da Costa Rodrigues, Nuno Roma, Leonel Sousa, p264: Open Platform for Designing Parallel H.264/AVC Video Encoders on Multi-Core Systems, In International Workshop on Network and Operating Systems Support for Digital Audio and Video (NOSSDAV 2010), ACM, pages 81-86, June 2010.
• Tiago José Barreiros Martins de Almeida, Nuno Roma, A parallel programming framework for multi-core DNA sequence alignment, In International Conference on Complex, Intelligent and Software Intensive Systems (CISIS2010), pages 907-912, February 2010.
• Gesner Passos, Nuno Roma, Bertinho Manuel D'Andrade da Costa, Leonel Sousa, J. M. Lemos, Distributed Software Platform for Automation and Control of General Anaesthesia, In 8th International Symposium on Parallel and Distributed Computing (ISPDC 2009), IEEE Computer Society Press, pages 135-142, July 2009.
• Nuno Sebastião, Tiago Dias, Nuno Roma, Paulo Flores, Leonel Sousa, Application specific programmable IP core for motion estimation: technology comparison targeting efficient embedded co-processing units, In 11th EUROMICRO Conference on Digital System Design: Architectures, Methods and Tools - DSD2008, IEEE Computer Society, pages 181-188, September 2008.
• Nuno Sebastião, Tiago Dias, Nuno Roma, Paulo Flores, Leonel Sousa, Specialized Motion Estimation Processor for Heterogeneous Multicore Video Coding Systems, In 4th International Summer School on Advanced Computer Architecture and Compilation for Embedded Systems - ACACES2008, HiPEAC, pages 63-66, July 2008.
• Nuno Roma, Leonel Sousa, Fully Compressed Domain Transcoder for PIP/PAP video composition, In 26th Picture Coding Symposium - PCS2007, pages CD-ROM, November 2007.
• Svetislav Momcilovic, Nuno Roma, Leonel Sousa, Adaptive Motion Estimation Algorithm for H.264/AVC, In 15th International Conference on Digital Signal Processing - DSP'2007, IEEE, pages CDROM, July 2007.
• Svetislav Momcilovic, Nuno Roma, Leonel Sousa, An ASIP Approach For Adaptive Motion Estimation on AVC, In IEEE 3rd Conference on PhD Research in Microelectronics and Electronics - PRIME'2007, IEEE, pages 165-168, July 2007.
• Tiago Dias, Nuno Roma, Leonel Sousa, Low power distance measurement unit for real-time hardware motion estimators, In Int. workshop on Power and Timing Modeling, Optimization and Simulation - PATMOS'2006, Springer Berlin / Heidelberg, vol. 4148, pages 247--255, September 2006.
• Svetislav Momcilovic, Tiago Dias, Nuno Roma, Leonel Sousa, Application Specific Instruction Set Processor for Adaptive Video Motion Estimation, In 9th EUROMICRO Conference on Digital System Design: Architectures, Methods and Tools - DSD'2006, IEEE Computer Society, pages 160-167, August 2006.
• Tiago Dias, Nuno Roma, Leonel Sousa, Efficient Motion Vector Refinement Architecture for Sub-Pixel Motion Estimation Systems, In IEEE Workshop on Signal Processing Systems - SiPS'2005, IEEE, pages 313-318, November 2005.
• Tiago Dias, Nuno Roma, Leonel Sousa, Efficient VLSI Architecture for Real-Time Motion Estimation in Advanced Video Coding, In IEEE International SOC Conference - SOCC'2005, IEEE, pages 91-92, September 2005.
• Nuno Roma, Leonel Sousa, Least Squares Motion Estimation Algorithm in the Compressed DCT Domain for H.26x/MPEG-x Video Sequences, In IEEE International Conference on Advanced Video and Signal-Based Surveillance - AVSS'05, IEEE, pages 576-581, September 2005.
• Nuno Roma, Tiago Dias, Leonel Sousa, Fast Adder Architectures: Modeling and Experimental Evaluation, In XVIII Conference on Design of Circuits and Integrated Systems - DCIS'03, pages 367-372, November 2003.
• Nuno Roma, Tiago Dias, Leonel Sousa, Customisable Core-Based Architectures for Real-Time Motion Estimation on FPGAs, In 3th International Conference on Field Programmable Logic and Applications (FPL'2003), pages 745-754, September 2003.
• Nuno Roma, Leonel Sousa, Insertion of Irregular-Shaped Logos in the Compressed DCT Domain, In 14th International Conference on Digital Signal Processing (DSP'2002), IEEE, vol. 1, pages 125-128, July 2002.
• Nuno Roma, Leonel Sousa, A New VLSI Architecture for Full Search Block Matching, In IFIP International Conference on Very Large Scale Integration - VLSI-SoC'2001, IFIP, pages 213-218, December 2001.
• Nuno Roma, Leonel Sousa, Parameterizable Hardware Architectures for Automatic Synthesis of Motion Estimation Processors, In IEEE Workshop on Signal Processing Systems - Design and Implementation - SIPS'2001, IEEE, pages 428-439, September 2001.
• Nuno Roma, Leonel Sousa, In the Development and Evaluation of Specialized Processors for Computing High-Order 2-D Image Moments in Real-Time, In 5th International Workshop on Computer Architectures for Machine Perception - CAMP'2000, pages 170-179, September 2000.
• Nuno Roma, J. Santos -Victor, José Alberto Batista Tomé, A Comparative Analysis of Cross-Correlation Matching Algorithms Using a Pyramidal Resolution Approach, In 2nd Workshop on Empirical Evaluation Methods in Computer Vision, in conjunction with the 6th European Conference on Comp, pages 1-23, July 2000.
• Manuel Duarte Ortigueira, Nuno Roma, Carlos Alberto Rodrigues Martins, Moises Simões Piedade, "An Archetypal Based ECG Analysis System", In Proceedings of the III Congreso de Usuarios de MATLAB - MATLAB'99, November 1999.
• Carlos Coelho, Nuno Roma, Leonel Sousa, Pipeline Architectures for Computing 2D Images Moments, In IV Design of Circuits and Integrated Systems Conference - DCIS'99, pages 169-174, November 1999.
• Leonel Sousa, Nuno Roma, Low-Power Array Architectures for Motion Estimation, In Workshop on Multimedia Signal Processing - MMSP'99, IEEE, pages 679-684, September 1999.
• Nuno Roma, Alexandre Abreu, José António Beltran Gerald, Leonel Sousa, Digital Video Transmission through the Electrical Power Lines, In Second European DSP Education and Research Conference, September 1998.

• Nuno Sebastião, Nuno Roma, Paulo Flores, Scalable Accelerator Architecture for Local Alignment of DNA Sequences, In VI Jornadas sobre Sistemas Reconfiguráveis - REC2010, Universidade de Aveiro / IEETA, pages 59-66, February 2010.
• J. M. Lemos, Nuno Roma, Teresa Mendonça, Leonel Sousa, Bertinho Manuel D'Andrade da Costa, Catarina Nunes, Pedro Amorim, Luís Antunes, Developmentof an integrated control system for anaesthesia automation, In Controlo 2008, 8th Portuguese Conf. on Control Automation, UTAD, August 2008.
• Tiago Dias, Nuno Sebastião, Nuno Roma, Paulo Flores, Leonel Sousa, Programmable IP core for motion estimation: comparison of FPGA and ASIC based implementations, In IV Jornadas sobre Sistemas Reconfiguráveis - REC2008, pages 109-116, February 2008.
• Tiago Dias, Nuno Roma, Leonel Sousa, Fully Parameterizable VLSI Architecture for Sub-Pixel Motion Estimation with Low Memory Bandwidth Requirements, In Terceiras Jornadas de Engenharia de Electrónica e Telecomunicações e de Computadores (JETC'05), DEETC-ISEL, pages CDROM, November 2005.
• Tiago Dias, Nuno Roma, Leonel Sousa, Two-Level Scalable Motion Estimation Architecture with Fractional-Pixel Accuracy and Efficient Data Re-Usage, In Jornadas sobre Sistemas Reconfiguráveis (REC'2005), Universidade do Algarve, pages 61-68, February 2005.

• Nuno Sebastião, Nuno Roma, Paulo Flores, Insertion and Improvement of Testability Mechanisms on a Specialized Multimedia IP Core, May 2009.
• Leonel Sousa, Nuno Roma, Tiago Dias, COSME: Configurable Structures for Motion Estimation: Final Report, September 2004.
• Leonel Sousa, Nuno Roma, Tiago Dias, COSME - Configurable Structures for Motion Estimation: First Preliminary Report, January 2003.
• Leonel Sousa, Nuno Roma, Tiago Dias, Efficient Adder Architectures for High-Performance VLSI Design, January 2003.
• Nuno Roma, Leonel Sousa, Transcoding Architectures for Object Insertion in Compressed Video, October 2002.
• Nuno Roma, Leonel Sousa, Implementation Aspects of MESA processor, January 2001.

• Tiago Dias, Nuno Roma, Leonel Sousa, José T. de Sousa, CWdv01 - Configurable FSBM Motion Estimator Processor - Datasheet, February 2003.