Infrared and Laser Engineering, Volume. 50, Issue 11, 20210021(2021)
Light field depth estimation of fusing consistency and difference constraints
Figures & Tables(11)
Fig. 1. Schematic diagram of light field and EPI acquisition (top), and diagram after overlaying light field images (bottom)
Fig. 6. Comparison of experimental results of depth maps with two cost functions
Table 1. Physical significance of important symbols
View tableView in ArticleTable 1. Physical significance of important symbols
Symbol Physical significance Symbol Physical significance R(x*,θN) EPI slash wθ(i,j) SPO distance weight E(x*+ $\Delta $x N,u) EPI slash pixel coordinate information χ2(aθ,bθ) SPO histogram χ2 distance tanθN EPI slope Ds(P,θN) SPO cost function I1，I2 Pixel adjacent integer pixel value c,cs,ce Adaptive confidence weight w1，w2 Horizontal distance weight D(P,θN) One-way final cost function h(x,u′) Pixel value probability Du,v(x,y,θ) Final cost function Cei(P,θN) Initial single channel entropy cost Eunary MRF data cost w(P,θN) Color similarity weight ES(p,p(α)) SPO data cost Ce(P,θN) Final single channel entropy cost Ee(p,p(α)) SLO data cost De(P,θN) SLO color entropy cost function Ebinary MRF smoothing term
Table 2. Comparison of results of BP>0.07
View tableView in ArticleTable 2. Comparison of results of BP>0.07
BP>0.07 boxes Cotton Sideboard dino CAE 0.187 8 0.038 4 0.120 0 0.068 8 IGF 0.192 4 0.141 8 0.108 3 0.070 5 LF 0.287 4 0.100 1 0.243 2 0.210 9 LF_DC 0.893 3 0.889 7 0.957 8 0.869 1 LF_OOC 0.405 6 0.365 5 0.436 4 0.252 7 LF_PAC 0.225 5 0.073 7 0.100 5 0.091 0 MBM 0.201 3 0.068 4 0.163 3 0.082 9 POBR 0.397 8 0.120 6 0.296 2 0.271 8 SPO 0.143 3 0.031 8 0.073 3 0.025 1 Proposed 0.141 1 0.025 5 0.071 9 0.023 7
Table 3. Comparison of results of MSE
View tableView in ArticleTable 3. Comparison of results of MSE
MSE boxes Cotton Sideboard dino CAE 0.089 1 0.026 9 0.008 6 0.004 0 IGF 0.106 1 0.108 3 0.012 0 0.009 9 LF 0.162 9 0.141 0 0.039 0 0.017 1 LF_DC 0.121 2 0.061 8 0.575 5 0.030 5 LF_OOC 0.074 8 0.056 7 0.043 0 0.017 2 LF_PAC 0.099 2 0.070 5 0.011 0 0.009 2 MBM 0.101 9 0.067 1 0.029 1 0.013 7 POBR 0.134 8 0.063 5 0.046 8 0.023 4 SPO 0.108 8 0.041 4 0.009 9 0.003 9 Proposed 0.101 7 0.024 8 0.009 6 0.003 5
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Zeyang He, Huiping Deng, Sen Xiang, Jin Wu. Light field depth estimation of fusing consistency and difference constraints[J]. Infrared and Laser Engineering, 2021, 50(11): 20210021
Paper Information
Category: Image processing
Received: May. 25, 2021
Accepted: --
Published Online: Dec. 7, 2021
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