Guidance-Aided Triple-Adaptive Frost Filter for Speckle Suppression in the Synthetic Aperture Radar Image
Abstract
:1. Introduction
2. Backgrounds, Related Works, and Methods
2.1. Backgrounds and Related Works
2.1.1. Anisotropic Diffusion Model-Based Method
2.1.2. Framework of the Rolling Guidance Filter
2.1.3. Overview of the Scale Space Theory
2.2. Guidance-Aided Triple-Adaptive Frost Filter
2.2.1. Traditional Frost Filter
2.2.2. Scale-Adaptive Size for the Neighborhood
2.2.3. Adaptive Tuning Factor
2.2.4. Guidance-Aided Edge Recovery Method
2.2.5. Combination Version for All the Adaptiveness
Algorithm 1 Guidance-aided triple-adaptive Frost filter. |
Input: The original SAR image , iteration times , , , , . Output: The filtered image Initialize: . Begin 1: 2: for do 3: Obtain the scale-adaptive sliding window size map of image ; 4: Obtain the edge response map of image referring to ; 5: Calculate the adaptive tuning factor matrix ; 6: Generate the filtered image by taking , , and into (14); 7: ; 8: end; 9: The output image ; End. |
3. Experiments
3.1. Experimental Design
3.2. Experimental Results
3.2.1. The Performance of Scale-Adaptive Sliding Window Sizing Method
3.2.2. The Performance of Guidance-Aided Adaptive Weighting Template
3.2.3. Experimental Results for Speckle Suppression on the Synthetic Images
3.2.4. Experimental Results for Speckle Suppression on the Airborne SAR Images
4. Discussion
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Image | Size | |
---|---|---|
Synthetic image | 880 × 880 | (1, 10, 0.05, 7, 19) |
Plant | 300 × 300 | (1, 50, 0.05, 5, 13) |
Clamps | 300 × 300 | (1, 3, 0.05, 5, 13) |
Keyboard | 300 × 300 | (1, 50, 0.05, 5, 13) |
apple | 300 × 300 | (1, 80, 0.05, 5, 13) |
Ku-band SAR image | 2224 × 1668 | (1, 50, 0.1, 9, 25) |
S-band SAR image | 5460 × 3580 | (1, 50, 0.1, 11, 31) |
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Li, J.; Yu, W.; Wang, Y.; Wang, Z.; Xiao, J.; Yu, Z.; Zhang, D. Guidance-Aided Triple-Adaptive Frost Filter for Speckle Suppression in the Synthetic Aperture Radar Image. Remote Sens. 2023, 15, 551. https://doi.org/10.3390/rs15030551
Li J, Yu W, Wang Y, Wang Z, Xiao J, Yu Z, Zhang D. Guidance-Aided Triple-Adaptive Frost Filter for Speckle Suppression in the Synthetic Aperture Radar Image. Remote Sensing. 2023; 15(3):551. https://doi.org/10.3390/rs15030551
Chicago/Turabian StyleLi, Jiamu, Wenbo Yu, Yi Wang, Zijian Wang, Jiarong Xiao, Zhongjun Yu, and Desheng Zhang. 2023. "Guidance-Aided Triple-Adaptive Frost Filter for Speckle Suppression in the Synthetic Aperture Radar Image" Remote Sensing 15, no. 3: 551. https://doi.org/10.3390/rs15030551