An FPGA Correlation-Edge Distance approach for disparity map

Abstract : —This paper describes an FPGA Correlation-Edge Distance approach for real time disparity map generation in stereo-vision. The proposed method calculates the disparity map for the input and disparity map for Edge Distance images of a stereopair. In both cases the approximation algorithm of disparity map SAD (Sum of Absolute Differences) is used. The final disparity map is determined from the previously generated maps, considering a homogeneity parameter defined for each point in the scene. Due to low complexity when implementing stereo-vision algorithms in FPGA devices, the proposed method was implemented in a Cyclone II EP2C35F672C6 FPGA assembled in an Altera DE2 breadboard. The developed module can process stereo-pairs of 1280×1024 pixel resolution at a rate of 75 frames/s and produces 8-bit dense disparity maps within a range of disparities up to 63 pixels. The presented architecture provides a significant improvement in regions with uniformed texture over correlation based stereo-vision algorithms in the reported literature and an accelerated processing rate.
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Communication dans un congrès
2015 International Conference on Electronics, Communications and Computers (CONIELECOMP), Feb 2015, Cholula, Mexico. 2015 International Conference on Electronics, Communications and Computers (CONIELECOMP), pp.21 - 28, 2015, 〈10.1109/CONIELECOMP.2015.7086952〉
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Contributeur : Abiel Aguilar-González <>
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Abiel Aguilar-González, Madain Perez-Patricio, Miguel Arias-Estrada, Jorge-Luis Camas-Anzueto, Héctor-Ricardo Hernández-De León, et al.. An FPGA Correlation-Edge Distance approach for disparity map. 2015 International Conference on Electronics, Communications and Computers (CONIELECOMP), Feb 2015, Cholula, Mexico. 2015 International Conference on Electronics, Communications and Computers (CONIELECOMP), pp.21 - 28, 2015, 〈10.1109/CONIELECOMP.2015.7086952〉. 〈hal-01627287〉

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