Fig. 1. Principle of perspective results in inconsistent transverse overlap of image

Fig. 2. Comparison of the effect of uniform distribution of features on alignment ability

Fig. 3. Registration schematic diagram of non-uniform overlap rate

Fig. 4. Diagram of regional division

Fig. 5. Overlapping and alternating phenomenon

Fig. 6. Schematic diagram of grid transformation recursion and inter column splicing

Fig. 7. Flow chart of stitching

Fig. 8. Comparison of sequential image stitching

Fig. 9. Comparison of stitching results of single column image stitching and inter column image

Fig. 10. Far-infrared image pair for contrast experiment

Fig. 11. Comparison of registration results

Fig. 12. Influence of different distribution functions on edge distortion

Fig. 13. Comparison of gray correction map

Fig. 14. Comparison of the first far-infrared image mosaic results

Fig. 15. Comparison of the sceond far-infrared image mosaic results