Sonar image library construction method based on modified CycleGAN model

Abstract

The invention discloses a sonar image library construction method based on a modified CycleGAN model, and the method comprises the steps: improving a loss function of a network model on the basis of the CycleGAN model, achieving the construction of a sonar image library, i.e., constructing a sonar image through an optical image, and achieving the style migration from the optical image to the sonarimage. By improving the loss function of the CycleGAN network, the sonar image synthesis effect is improved, and a target detection network is designed to verify the effectiveness of the constructedsonar image data set.

Description

technical field

[0001] The invention belongs to the field of sonar image processing, and in particular relates to a method for constructing a sonar image library. Background technique

[0002] In recent years, with the vigorous development of the marine underwater acoustic detection industry, affected by the complexity of the water medium, electromagnetic waves are easily absorbed, resulting in a very short propagation distance in water, making it difficult to achieve long-distance detection tasks, while sound waves can travel tens of kilometers in water , is an ideal propagation signal. In the low-frequency band, the sound wave travels far away, and the noise recognition work (such as ship noise) can be realized directly by using the spectrum and other characteristics of the echo signal; while in the high-frequency band, sonar target imaging can be realized within a range of several hundred meters. At present, imaging sonar has gradually become one of the necessary equipme...

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