Fig. 1. Structure of the neighborhood sampling

Fig. 2. Flow of the feature matching algorithm

Fig. 3. Structure of the SAE network

Fig. 4. Image leuven of the light difference

Fig. 5. Sea ice image. (a) Bohai Sea image (ALOS); (b) Bohai Sea image (ASAR); (c) image with a resolution of 8 m; (d) image with a resolution of 100 m

Fig. 6. Average matching accuracy rates of different algorithms

Fig. 7. Matching results of our algorithm. (a) 1-2; (b) 1-3; (c) 1-4; (d) 1-5; (e) 1-6

Fig. 8. Mismatch elimination results of different algorithms. (a) RANSAC; (b) PSOSAC; (c) LMR; (d) our algorithm