Moxuan Yang, Yuanmeng Zhao, Fengxia Zhu, Hongfei Zhang, Zhilong Li, Cunlin Zhang. Terahertz Light Field Imaging Occlusion Removing Algorithm Based on Multi-Perspective Synthetic Aperture[J]. Acta Optica Sinica, 2022, 42(9): 0911001
- Acta Optica Sinica
- Vol. 42, Issue 9, 0911001 (2022)
Fig. 1. Comparison between large aperture camera and single camera
Fig. 2. Processing flowchart of proposed algorithm
Fig. 3. Reconstruction process of sub-image array
Fig. 4. Estimation result of minimum generalization error
Fig. 5. Digital refocus images with different depths. (a) n=100 mm; (b) n=110 mm; (c) n=120 mm; (d) n=130 mm; (e) n=140 mm; (f) n=150 mm
Fig. 6. Curve signals before and after filtering
Fig. 7. Reconstructed images processed by different algorithms. (a) Visible image; (b) original image; (c) digital refocusing algorithm; (d) proposed algorithm; (e) unocclusion
Fig. 8. Influence of occlusion with different thickness on reconstructed image. (a) n=5 cm; (b) n=6 cm; (c) n=7 cm
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Table 1. Objective evaluation of image quality with reference
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Table 2. Objective evaluation of image quality without reference
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