An image denoising method for SAR images with low-sampling measurements

Xiahan Yang; Yahong Rosa Zheng

doi:10.1117/12.2300775

27 March 2018 An image denoising method for SAR images with low-sampling measurements

Xiahan Yang, Yahong Rosa Zheng

Proceedings Volume 10599, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XII; 1059918 (2018) https://doi.org/10.1117/12.2300775
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2018, Denver, Colorado, United States

Abstract

In this study, an image denoising method for the synthetic aperture radar (SAR) images is proposed. When reconstructed from low-sampling-rate measurements using a compressed sensing (CS) based method, the reconstructions still suffer from noise and aliasing for the sampling rate is much lower than the Nyquist sampling rate (15%-25%). To in future improve the reconstruction, we proposed an imaging denoising method for CS-based reconstructed SAR image. In this proposed denoising method, the pending SAR image is treated as a level set function. We design a step curvature flow function using which the aliasing and noise are eliminated and the clarity of objects of interest in the SAR images are enhanced. Simulation and experimental results illustrated that only a 20% measurement is necessary in the SAR experiment to identify the objects of interest with the proposed method.

Conference Presentation

Citation Download Citation

Xiahan Yang and Yahong Rosa Zheng "An image denoising method for SAR images with low-sampling measurements", Proc. SPIE 10599, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XII, 1059918 (27 March 2018); https://doi.org/10.1117/12.2300775

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