Study on Denoising and Enhancement Method in SAR Image based on Wavelet Packet and Fuzzy Set
Zhenlin Wang, Ke Wang, Zengyuan Liu, Zhengbo Zeng · 2019
Aiming at problem of denoising and enhancement in Synthetic Aperture Radar (SAR) image, this paper proposes a fusion of wavelet packet transform and fuzzy set algorithm for freqnency domain and fuzzy domain collaborative and joint processing to improve denoising and enhancement effect in SAR image. Firstly, wavelet packet transform was used to decompose SAR image in frequency domain, and noise was removed by threshold quantization. Then, the low frequency part of SAR image was linearly transformed to enhance frequency domain of SAR image. Finally, fuzzy set algorithm was nsed to enhance fuzzy domain of SAR image. In summary, this paper comprehensively proposes a SAR image denoising and enhancement algorithm combining wavelet packet and fuzzy set. The effectiveness and snperiority of proposed method are verified by experiments.