Current research projects (as coordinator):
Precise and Approximate Hardware Accelerators for Video Coding. CNPq Research Productivity Scholarship - Level 2. Funding agency: Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brazil.
Video Encoder for MPEG-5 Essential Video Coding Standard Employing General Purpose Processor and Hardware Accelerators. Funding agency: Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul (FAPERGS), Brazil.
Current research projects (as participant):
SYMBIO-HW - Symbiotic Optimization for AI Hardware: Increasing the Efficiency of IoT Devices. Funding agency: Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul (FAPERGS), Brazil.
Past research projects:
Approximate Hardware Accelerators for Video Encoders of the Versatile Video Coding Standard. Funding agency: Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul (FAPERGS), Brazil.
Approximate Configuration Predictor of SATD Hardware Accelerator for Video Encoders. AI funding project for undergraduate student final course work. Funding agency: Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brazil.
Low Power Hardware Architectures for High Efficiency Video Coding Standard. Funding agency: Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Brazil.
ReACT: Reliability and Approximate Computing Techniques for Neural Networks and Image/Video Coding. Member of the cooperation project between the Chair for Embedded Systems (CES), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany, the Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil, and the Catholic University of Pelotas (UCPel), Pelotas, Brazil. Funding agencies: Deutscher Akademischer Austauschdienst (DAAD) and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES).
Research interests:
Video Coding (Video Compression)
Hardware Architecture Design
Digital Circuits
Image Processing
Embedded Systems
Invited talks and tutorials:
Semana Acadêmica da Escola Politécnica (SAEP), UNISINOS. Online at YouTube (in portuguese). October 20, 2021.
CASS Talk. Approximate Hardware Accelerators for Video Coding. Online at YouTube. July 16, 2021.
CASS Talk. Approximate Hardware Accelerators for Video Coding. Federal University of Santa Catarina, December, 2019.
EMicro 2018 (South Microelectronics School). Introdução às arquiteturas dedicadas ao processamento de vídeos (in Portuguese).
High Efficient Video Coding (HEVC): From Applications to Low-power Hardware Design. Tutorial given jointly with Sergio Bampi at ISCAS 2016
Current doctor students:
Daiane Fonseca Freitas. Topic: Interpolation filters in AV1 standard. Co-advising with prof. Guilherme Corrêa (UFPel, Brazil) and prof. Mateus Grellert (UFSC, Brazil)
Current master students:
Leonardo Sebaje da Silva (UFRGS, Brazil). Topic: Machine learning hardware in FPGAs. Co-advising with prof. André Inácio Reis (UFRGS, Brazil).
Marco Jefferson Mamani Arapa (UFRGS, Brazil). Topic: Essential Video Coding system in FPGAs.
Nixon Fernando Ortiz De La Cruz (UFRGS, Brazil). Topic: Essential Video Coding system in FPGAs.
Lucas Mariano Leipnitz de Fraga (UFRGS, Brazil). Topic: Intra Picture Hardware Accelerators for Versatile Video Coding.
Current undergraduate students:
Eduardo Bonow Bösel (UFRGS, Brazil). Topic: Approximate Configuration Predictor of SATD Hardware Accelerator for Video Encoders.
Francisco Garcia Ferreira (UFRGS, Brazil). Topic: Approximate Hardware Accelerator for Interpolation Filters of Versatile Video Coding.
Rafaela Rembold Favero (UFRGS, Brazil). Topic: Approximate Hardware Accelerator for Similarity Metrics in Video Encoders of the Versatile Video Coding.
Yusef Mahathma Henchenski Gidrão (UFRGS, Brazil). Topic: Software Evaluation of Approximate Interpolation Filters of the Versatile Video Coding.
Other current research collaborations:
Approximate image filtering accelerators. Collaborating with Talita Borges (UFRGS, Brazil), prof. Paulo Butzen (UFRGS, Brazil), and prof. Leonardo Soares (IFRS, Brazil).
Eye tracking systems. Collaborating with prof. Alexandra Zimpeck, Alessandro Silveira, Tiago Appolinario (UCPel, Brazil), and prof. Mateus Grellert (UFSC, Brazil).
Improving Video Streaming in Congested Networks with In-Network Computing. Collaborating with Leonardo Gobatto, Mateus Saquetti, prof. Weverton Cordeiro, prof. Jose R. Azambuja (UFRGS, Brazil) and prof. Bruno Zatt (UFPel, Brazil).
Former doctor students:
Bianca da Cunha da Silveira. Topic: Transforms Architectures for Versatile Video Coding standard. Co-advising with prof. Guilherme Corrêa (UFPel, Brazil) and prof. Daniel Palomino (UFPel, Brazil).
Rafael dos Santos Ferreira. Topic: Approximate architectures for video coding. Co-advising with prof. Bruno Zatt (UFPel, Brazil) and prof. Luciano Agostini (UFPel, Brazil).
Former master students:
Mateus Parker Porto (UCPel, Brazil). Topic: Embedded Systems for Biological Cell Counting. Co-advising with prof. Adenauer Yamin (UCPel, Brazil).
Augusto da Rosa Muniz (UCPel, Brazil). Topic: Embedded Systems for Biological Cell Counting.
Daiane Fonseca Freitas (UCPel, Brazil). Topic: Interpolation Filter for AV1 video coding standard.
Giovane Gomes Silva (UCPel, Brazil). Topic: Interpolation Filter for Versatile Video Coding (VVC) standard.
Matheus Führmann Stigger (UCPel, Brazil). Topic: SATD approximate architectures for video coding.
Lucas Soares da Costa (UCPel, Brazil). Topic: Cell counting with image processing.
Rafael dos Santos Ferreira (UCPel, Brazil). Topic: Video coding architectures using hybrid encoding arithmetic operators.
Former undegraduate students:
Juliana Rodrigues de Vargas (UFRGS, Brazil). Topic: Approximate Hardware Accelerators for Versatile Video Coding.
Luis Eduardo Pereira Mendes (UFRGS, Brazil). Topic: Analysis of Approximate Computing Techniques in Versatile Video Coding standard Encoder.
Gabriel Volkweis Leite (UFRGS, Brazil). Topic: Precise Hardware Accelerators for Versatile Video Coding.
Vinicius Boff Alves (UFRGS, Brazil). Topic: Verification of Hardware Accelerators for Versatile Video Coding standard.
Ana Carolina de Castilhos Ferreira (UFRGS, Brazil). Topic: Hardware Accelerators for Versatile Video Coding standard.
Eduardo Mancuso Bolson (UFRGS, Brazil). Topic: Approximate computing in Versatile Video Coding.
Alessandro Silveira (UCPel, Brazil). Topic: Eye tracking.
Fernanda Oliveira Pereira (UCPel, Brazil). Topic: Embedded Systems for Biological Image Processing.
Victor Hugo da Silveira Lima (UCPel, Brazil). Topic: Approximate SATD architecture for HEVC intra encoder.
Bruno Lopes Soares (UCPel, Brazil). Topic: Video coding architectures design and mapping into FPGAs.
Lucas Pereira Ferreira (UCPel, Brazil). Topic: Embedded Systems for Image Processing.
Matheus Kern Protzen (UCPel, Brazil). Topic: Embedded Systems for Image Processing.
Giovane Gomes Silva (UCPel, Brazil). Topic: Embedded Systems for Image Processing.
Matheus Führmann Stigger (UCPel, Brazil). Topic: Approximate architectures for video coding.
Karen Rediess Müller Sória (UCPel, Brazil). Topic: Video coding application analysis.
Thayná Almeida da Rosa de Oliveira (UCPel, Brazil). Topic: Video coding application analysis.
Sara Prestes Ritta (UCPel, Brazil). Topic: Embedded Systems
Gustavo Kickhofel Ribes(UCPel, Brazil). Topic: Video coding application analysis.