A Comprehensive Processing Method for Side-scan Sonar Image De-noising and Equalization

doi:10.13474/j.cnki.11-2246.2018.0244

Abstract

Abstract: In the measurement process of side scan sonar (SSS),it is easily affected by other operating vessels and the factors such as ship speed,wake flow,gain parameter settings.This results in the image influenced by a variety of noise and radiometric distortion.The traditional method is difficult to effectively filter out it,and it is seriously affecting the seabed target recognition for SSS image.According to the characteristics of the SSS image,a novel comprehensive processing method of de-noising and equalization for SSS image is proposed.Compared with the traditional method,the entropy value of the image is reduced and the peak signal to noise ratio (PSNR) is increased,the shape of the seabed target is effectively preserved,and the high-quality acquisition of the SSS image is realized.

Key words: side scan sonar image, entropy, peak signal to noise ratio, de-noising, equalization

CLC Number:

P237

WANG Xiao, GUO Jun, ZHU Bangyan, WANG Aixue, QIN Tiantian. A Comprehensive Processing Method for Side-scan Sonar Image De-noising and Equalization[J]. 测绘通报, 2018, 0(8): 51-55.

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