Laser & Optoelectronics Progress, Volume. 57, Issue 6, 062803(2020)
Fast Registration of Visible light and Synthetic Aperture Radar Images
Figures & Tables(10)
Fig. 2. Image redundancy removing simulation diagram. (a) Simulated image; (b) selected rows and columns to be excluded; (c) image after specific sampling
Fig. 3. Key point detection. (a) Original visible image; (b) original SAR image; (c) visible image after removing redundancy; (d) SAR image after removing redundancy; (e) Harris detection result of figure (c); (f) Harris detection result of figure (d); (g) LoG detection result of figure (c); LoG detection result of figure (d)
Fig. 4. Diagram of point rebuilding. (a) Coordinates of pixels in de-redundant image; (b) pixel coordinates of reconstructed points in original image
Fig. 5. Image registration effect map of the first pair. (a) SIFT; (b) SIFT-M; (c) PSO-SIFT; (d) DR-SIFT
Fig. 6. Image registration effect map of the second pair. (a) SIFT; (b) SIFT-M; (c) PSO-SIFT; (d) DR-SIFT
Fig. 7. Image registration effect map of the third pair. (a) SIFT; (b) SIFT-M; (c) PSO-SIFT; (d) DR-SIFT
Table 1. Comparison of key points repetition rate between Harris and LoG
View tableTable 1. Comparison of key points repetition rate between Harris and LoG
Key point detection methods LoG Harris Optical image SAR image Optical image SAR image Number of key points 692 811 677 552 Repetition rate of key points /% 62.97 78.27
Table 2. Knowledge of real multimodal image pairs
View tableTable 2. Knowledge of real multimodal image pairs
Image No. Image source Size /(pixel×pixel) Spatial resolution /m Date Location 1 Airborne SAR 580×500 3 06/2017 Suburban area Google Earth 580×500 3 07/2018 2 Airborne SAR 660×510 3 06/2017 River area Google Earth 660×510 3 07/2018 3 Airborne SAR 483×656 0.5 11/2018 Airport area Google Earth 544×695 0.5 07/2018 4 Airborne SAR 450×410 3 11/2018 Suburban area Google Earth 460×390 3 07/2018 5 Airborne SAR 460×460 0.5 11/2018 Rift valley Google Earth 546×510 1 07/2018 6 Airborne SAR 440×400 3 11/2018 River area Google Earth 443×354 3 07/2018 7 Airborne SAR 420×420 1 12/2010 Urban area Google Earth 490×363 1 09/2012 8 Airborne SAR 550×480 3 12/2010 Urban area Google Earth 550×480 3 09/2012 9 Airborne SAR 560×520 3 12/2010 Suburban area Google Earth 560×520 3 09/2012 10 Airborne SAR 480×480 3 06/2017 Mountain area Google Earth 480×480 3 07/2018
Table 3. Comparison of registration parameters of three methods
View tableTable 3. Comparison of registration parameters of three methods
Image pair number Method N1 N2 CMR /% RMSE Running time /s 1 SIFT 27 □ □ □ 3.33 SIFT-M 83 59 71.08 1.3902 53.62 PSO-SIFT 47 35 74.46 1.2805 48.84 DR-SIFT 16 13 81.25 0.6731 41.27 2 SIFT 41 □ □ □ 4.08 SIFT-M 124 99 79.83 1.6020 54.20 PSO-SIFT 138 86 62.31 1.6942 47.04 DR-SIFT 66 58 87.87 1.0323 41.67 3 SIFT 61 □ □ □ 4.33 SIFT-M 156 119 74.84 1.5910 45.19 PSO-SIFT 63 48 76.19 1.7982 29.97 DR-SIFT 29 24 82.75 1.0230 28.61 4 SIFT 33 □ □ □ 2.50 SIFT-M 25 17 68.00 0.8081 36.50 PSO-SIFT 27 15 55.56 1.2970 26.04 DR-SIFT 24 19 79.17 0.7033 21.38 5 SIFT 60 □ □ □ 4.38 SIFT-M 34 21 61.76 0.9426 32.14 PSO-SIFT 45 32 71.11 0.8143 17.09 DR-SIFT 19 14 73.68 0.2160 20.87
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Zhihua Xie, Jinghong Liu, Hui Sun, Jiaqi Peng. Fast Registration of Visible light and Synthetic Aperture Radar Images[J]. Laser & Optoelectronics Progress, 2020, 57(6): 062803
Paper Information
Category: Remote Sensing and Sensors
Received: Aug. 14, 2019
Accepted: Aug. 28, 2019
Published Online: Mar. 6, 2020
The Author Email: Zhihua Xie (xiezhihua17@mails.ucas.ac.cn), Jinghong Liu (liu1577@126.com)
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