TY - GEN
T1 - SWMF
T2 - 50th IEEE International Symposium on Circuits and Systems, ISCAS 2017
AU - Chen, Shiqiang
AU - Zhang, Xuchong
AU - Sun, Hongbin
AU - Zheng, Nanning
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/9/25
Y1 - 2017/9/25
N2 - Although large disparity stereo matching is critical to the practical application of stereo vision system especially for outdoor scenes, its efficient hardware design is still a grand challenge. Motivated by the discovery that well-designed weighted median filter (WMF) can achieve satisfactory accuracy with simple box-filter aggregation, this paper proposes a separable weighted median filter (sWMF) that only has the computational complexity of O(r) and is independent of disparity range. Moreover, the proposed sWMF can be efficiently implemented as a fully pipelined architecture. Evaluation results demonstrate that, at the penalty of only 0.06% disparity error rate, the proposed sWMF design can save 12.9% Slice LUTs, 76.7% DSPs and 64.0% Block RAMs at the disparity range of 128, compared with previous WMF implementation on FPGA.
AB - Although large disparity stereo matching is critical to the practical application of stereo vision system especially for outdoor scenes, its efficient hardware design is still a grand challenge. Motivated by the discovery that well-designed weighted median filter (WMF) can achieve satisfactory accuracy with simple box-filter aggregation, this paper proposes a separable weighted median filter (sWMF) that only has the computational complexity of O(r) and is independent of disparity range. Moreover, the proposed sWMF can be efficiently implemented as a fully pipelined architecture. Evaluation results demonstrate that, at the penalty of only 0.06% disparity error rate, the proposed sWMF design can save 12.9% Slice LUTs, 76.7% DSPs and 64.0% Block RAMs at the disparity range of 128, compared with previous WMF implementation on FPGA.
UR - https://www.scopus.com/pages/publications/85032695405
U2 - 10.1109/ISCAS.2017.8050769
DO - 10.1109/ISCAS.2017.8050769
M3 - 会议稿件
AN - SCOPUS:85032695405
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
BT - IEEE International Symposium on Circuits and Systems
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 28 May 2017 through 31 May 2017
ER -