Jiyang Yao, Xiaozhao Zheng, Huajun Li, Shanen Yu. Research on Optical Tomography Based on Optimized Landweber Algorithm[J]. Laser & Optoelectronics Progress, 2023, 60(16): 1611003
- Laser & Optoelectronics Progress
- Vol. 60, Issue 16, 1611003 (2023)
Fig. 1. Schematic diagram of objects scanned by light emitter
Fig. 2. Schematic diagram of one ray projection
Fig. 3. Schematic diagram of 25×25 sensor array.(a) Light distribution diagram; (b) diagram of sensitive field
Fig. 4. Schematic diagrams of five section distribution scenarios.(a) 15 radius circle with 'hard edge'; (b) 20 radius circle with 'hard edge';(c) Gauss circle of radius 10 with 'soft edge'; (d) 10 and 20 radius circles with 'hard edge'; (e) 15 and 20 radius circles with 'hard edge'
Fig. 5. Comparison curve of iteration times and relative error of different algorithms. (a) Scene 1; (b) scene 2; (c) scene 3; (d) scene 4; (e) scene 5
Fig. 6. Comparison of images reconstructed by different algorithms in different scenes
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Table 1. Relative error comparison of 1000 iterations and 4000 iterations
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Table 2. Analysis of iteration times and iteration time required for same relative error
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Table 3. Comparison of reconstructed image data by reconstruction algorithm
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Table 4. Comparison of iteration times and time between LW algorithm and two improved algorithms
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