Fig. 1. Schematic diagrams of computerized tomography and laser reflection tomography. (a) Computerized tomography; (b) laser reflection tomography

Fig. 2. Single-point target images reconstructed from different angles. (a) 15°; (b) 30°; (c) 45°; (d) 60°; (e) 90°; (f) 360°^[17]

Fig. 3. Letter E reconstructed based on the filtered back projection algorithm. (a) 45°; (b) 90°; (c) 360°^[17]

Fig. 4. Reconstructed images of three point targets under different angle errors. (a) Original image; (b) error-free image; (c) Gaussian random error is (0,1); (d) Gaussian random error is (0,3); (e) Gaussian random error is (0,5);(f) Gaussian random error is (0,7)^[18]

Fig. 5. Simulation results of three-point targets in different angle ranges. (a) 180°; (b) 150°; (c) 120°; (d) 90°; (f) 60°^[18]

Fig. 6. Projection reconstructed images in different angle ranges. (a) 10°; (b) 30°; (c) 60°; (d) 90°; (e) 180°; (f) 360°^[25]

Fig. 7. Phase recovery algorithm flow chart based on modulus weighting^[36]

Fig. 8. Projection data before and after registration. (a) Unregistered projection data; (b) registered projection data ^[38-39]

Fig. 9. Flow chart of multi-frame iterative blind deconvolution algorithm^[46]

Fig. 10. Reconstruction result of a triangular prism. (a) Direct back projection; (b) R-L filtered back projection; (c) S-L filtered back projection; (d) ART algorithm^[54]

Fig. 11. Reconstructed images of aluminum cone in different resolution.(a) Low-resolution reconstructed image; (b) high-resolution reconstructed image^[2-4]

Fig. 12. Reconstruction images of LACE satellite germanium retro-reflectors in specular target experiment. (a) Original image; (b) image after thresholding^{[9-10, 62]}

Fig. 13. Satellite model and its reconstructed image in diffused target experiment. (a) Satellite target model;(b) reconstructed image^[8,59,63]

Fig. 14. Long-distance and slow-rotating target reflection tomography experimental device. (a) Experimental device; (b) two-dimensional Ladon change image of the target; (c) reconstructed image^[64]

Fig. 15. Two-dimensional contour images of the target reconstructed by different algorithms. (a) Back projection algorithm; (b) filter back projection algorithm^[39]

Fig. 16. Two-dimensional plane image of the target reconstructed by the algebraic reconstruction algorithm. (a) 5 iterations; (b) 20 iterations^[65]

Fig. 17. Small boat target model and reconstructed image. (a) Small boat model; (b) reconstructed image of boat model after removing artifacts^[60]

Fig. 18. Satellite model and reconstructed image. (a) Satellite model; (b) reconstructed image before processing;(c) reconstructed image after processing^[44-45]

Fig. 19. Rocket imaging model and its reconstructed image. (a) Rocket model; (b) Doppler resolution data of the rocket model; (c) reconstructed image of the rocket model^{[5, 7]}

Fig. 20. Modified angle-Doppler projections and its reconstructed image. (a) Modified angle-Doppler projections; (b) reconstructed image of the target^[57]