FPGA-based real-time disparity computation and object location

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2010

Autores

Santos, PM (Autor) Outra; João Canas Ferreira (Autor) FEUP

Ata de Conferência Internacional

Título: 28th Norchip Conference, NORCHIP 2010

Páginas: 1-4

28th Norchip Conference, NORCHIP 2010

Tampere, 15 November 2010 through 16 November 2010

Indexação

Scopus - 3 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia electrotécnica, electrónica e informática

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia de computadores ; Ciências Tecnológicas > Engenharia > Engenharia electrónica

Outras Informações

ID Authenticus: P-007-X3A

DOI: 10.1109/norchip.2010.5669468

Abstract (EN): This paper describes an FPGA-based system capable of computing the distance of objects in a scene to two stereo cameras, and use that information to isolate objects in the foreground. For this purpose, four disparity maps are generated in real time, according to different similarity metrics and sweep directions, and then merged into a single foreground-versus-background bitmap. Our main contribution is a custom-built hardware architecture for the disparity map calculation, and an optional post-processing stage that coarsens the output to improve resilience against spurious results. The system was described in Verilog, and a prototype implemented on a Xilinx Virtex-II Pro FPGA proved capable of processing 640x480 black-and-white images at a maximum frame rate of 40 fps, using 3x3 matching windows and detecting disparities of up to 135 pixels. ©2010 IEEE.

Idioma: Inglês

Tipo (Avaliação Docente): Científica