Yingchun Wu, Xing Cheng, Yingxian Xie, Anhong Wang. Defocusing Response Function Optimization in Depth Estimation of Boundary Complex Light Field Image[J]. Laser & Optoelectronics Progress, 2020, 57(18): 181027
- Laser & Optoelectronics Progress
- Vol. 57, Issue 18, 181027 (2020)
Fig. 1. Flowchart of depth estimation algorithm based on defocus and correspondence
Fig. 2. Comparison of second-order derivative operators. (a) Traditional Laplace operator; (b) proposed second-order derivative operator for energy enhancement
Fig. 3. Comparison of depth evaluation results obtained based on "shoe" image. (a) Light field raw image; (b) depth map calculated by DCDC algorithm; (c) depth map calculated by proposed method
Fig. 4. Comparison of defocus response curves. (a) Defocus response curves obtained based on Laplace operator; (b) defocus response curves obtained based on proposed energy enhanced second-order derivative operator
Fig. 5. Comparison of depth evaluation results for "stapler" image. (a) Light field raw image without redundancy; (b) depth map calculated by DCDC algorithm; (c) depth map calculated by proposed method
Fig. 6. Two sample images in benchmark dataset. (a) "boxes" scene; (b) "dino" scene
Fig. 7. Comparison of depth evaluation results for "boxes" scene. (a) Ground truth; (b) depth map calculated by DCDC algorithm; (c) depth map calculated by proposed method
Fig. 8. Comparison of depth evaluation results for "dino" scene. (a) Ground truth; (b) depth map calculated by DCDC algorithm; (c) depth map calculated by proposed method
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Table 1. Quantitative evaluation of accuracy of depth maps
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