Fig. 1. Schematic diagram of concentric multi-scale imaging system

Fig. 2. Examples of image stitching misalignment. (a)(b) Enlarged schematic diagrams of splicing dislocation; (c) imaging result of monocentric multi-scale camera

Fig. 3. Secondary camera array arrangement

Fig. 4. Scatter plot of image stitching misalignment changing with imaging depth range

Fig. 5. Diagrams of theoretical analysis of image stitching misalignment. (a) Diagram of array camera imaging; (b) diagram of single camera imaging

Fig. 6. Schematic diagram of manual stitching effect

Fig. 7. Diagram of using telecentric optical path to compensate image stitching misalignment caused by movement of object surface

Fig. 8. Schematic diagram of simplified model of concentric multi-scale imaging system

Fig. 9. Optical layout of fore monocentric objective

Fig. 10. Image quality evaluation of fore monocentric objective system. (a) Spot diagram; (b) ray fan

Fig. 11. Optical layout of secondary telecentric lens system

Fig. 12. Image quality evaluation of secondary telecentric lens system. (a) Spot diagram; (b) ray fan; (c) curvature/distortion curves; (d) MTF curves

Fig. 13. Optical layout of synthetic system

Fig. 14. Image quality evaluation of synthetic system. (a) Spot diagram; (b) ray fan; (c) curvature/distortion curves; (d) MTF curves

Fig. 15. Orientation of adjacent secondary camera

Fig. 16. Schematic diagram of multi-channel concentric multi-scale imaging system

Fig. 17. Image quality evaluation of different field of view channels. (a) Spot diagram of channel with central field of view of 0°; (b) spot diagram of channel with central field of view of 16.55°; (c) spot diagram of channel with central field of view of 33.10°; (d) MTF curves of channel with central field of view of 0°; (e) MTF curves of channel with central field of view of 16.55°; (f) MTF curves of channel with central field of view of 33.10°