Laser & Optoelectronics Progress, Volume. 57, Issue 10, 101020(2020)
Non-Local Stereo Matching Algorithm Based on Color and Edge Information
Figures & Tables(8)
Fig. 2. Schematic of cost aggregation in minimum spanning tree structure. (a) From leaf nodes to root nodes; (b) from root nodes to leaf nodes
Fig. 3. Experimental results of proposed algorithm and other algorithms. (a) Original images; (b) true disparity images; (c) disparity images of traditional algorithm; (d) disparity images of proposed algorithm; (e) mismatch of proposed algorithm
Table 1. Experimental parameters
View tableTable 1. Experimental parameters
Parameter β τ1 τ2 α λ σ N Value 0.11 7.00 2.00 0.16 0.50 0.10 4.00
Table 2. Comparison of mismatched pixels with threshold is 1unit: %
View tableTable 2. Comparison of mismatched pixels with threshold is 1unit: %
Algorithm Tsukuba Venus Teddy Cones Average Nonocc All Disc Nonocc All Disc Nonocc All Disc Nonocc All Disc Proposed 1.54 1.83 7.69 0.40 0.66 2.92 4.61 9.78 12.24 2.89 8.38 8.28 5.10 NLCA[ 10 ]2.94 3.46 9.38 0.33 0.58 3.35 6.40 9.13 15.43 3.46 8.04 9.77 6.02 VSW[ 17 ]1.62 1.88 6.98 0.47 0.81 3.40 8.67 13.30 18.00 3.37 8.82 8.12 6.29 ASW[ 6 ]1.38 1.85 6.90 0.71 1.19 6.13 7.88 13.30 18.60 3.97 9.79 8.26 6.67 VC[ 18 ]1.99 2.65 6.77 0.62 0.96 3.20 9.75 15.10 18.20 6.28 12.70 12.90 7.60
Table 3. Comparison of mismatched pixels with threshold is 0.5unit: %
View tableTable 3. Comparison of mismatched pixels with threshold is 0.5unit: %
Algorithm Tsukuba Venus Teddy Cones Average Nonocc All Disc Nonocc All Disc Nonocc All Disc Nonocc All Disc Proposed 13.46 13.76 15.28 11.08 11.54 13.98 12.67 18.38 22.50 11.79 17.14 17.72 14.94 NLCA[ 10 ]11.18 11.75 15.39 9.39 9.29 17.93 15.61 18.22 30.73 11.77 16.12 22.29 15.84 VSW[ 17 ]19.20 19.50 18.50 8.17 8.65 13.20 17.40 23.20 31.40 13.10 18.30 20.40 17.60 ASW[ 6 ]18.10 18.80 18.60 7.77 8.40 15.80 17.60 23.90 34.00 14.00 19.70 20.60 16.03 VC[ 18 ]24.50 25.10 21.50 9.03 9.59 13.80 18.80 25.10 31.40 16.10 22.10 22.40 19.90
Table 4. Error reduction comparisonunit: %
View tableTable 4. Error reduction comparisonunit: %
Algorithm Tsukuba Venus Teddy Cones Average Proposed 3.69 1.33 8.88 6.54 5.10 NLCA 5.26 1.42 10.32 7.09 6.02 Error improvement 29.85 6.34 13.95 7.76 15.28
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Qingqing Ma, Caifang Wang. Non-Local Stereo Matching Algorithm Based on Color and Edge Information[J]. Laser & Optoelectronics Progress, 2020, 57(10): 101020
Paper Information
Category: Image Processing
Received: Sep. 10, 2019
Accepted: Oct. 25, 2019
Published Online: May. 8, 2020
The Author Email: Wang Caifang (cfwang@shmtu.edu)
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