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High-resolution reconstruction method for side-scan sonar image

A high-resolution, side-scan sonar technology, applied in image data processing, graphic image conversion, instruments, etc., can solve the problems of low quality and complex calculation of reconstructed sonar image methods, and achieve easy implementation, light and simple models, and easy operation. easy effect

Pending Publication Date: 2021-03-19
JIANGSU UNIV OF SCI & TECH
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Problems solved by technology

[0004] The present invention provides a high-resolution reconstruction method of side-scan sonar images to solve the problems of low quality and complex calculations in the reconstruction of sonar images in the prior art

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  • High-resolution reconstruction method for side-scan sonar image
  • High-resolution reconstruction method for side-scan sonar image
  • High-resolution reconstruction method for side-scan sonar image

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[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0042] This embodiment discloses a method for high-resolution reconstruction of a side-scan sonar image, comprising the following steps:

[0043] Step 1: Establish the model coordinate system;

[0044] Step 2: Obtain all collected echo data, sonar position information corresponding to each echo data, and sonar height information corresponding to each echo da...

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Abstract

The invention provides a high-resolution reconstruction method for a side-scan sonar image, and the method comprises the steps: obtaining a cone cell distribution model through the analysis of the relation between the cone cell density and the human eye retina deviation degree based on the perception characteristics of the human eye retina, and calculating the observed probability of each pixel point target through the distribution model; and finally, a high-quality seabed image is obtained. According to the method, a probability model is constructed for a sonar signal seabed model according to distribution of cone cells, a sonar image is reconstructed, and a high-quality sonar image conforming to human eye characteristics is finally obtained through little whitening in an image area.

Description

technical field [0001] The invention belongs to the field of sonar image processing, and in particular relates to a high-resolution reconstruction method of a side-scan sonar image. Background technique [0002] The side-scan sonar actively transmits acoustic signals to the seabed, receives the reflected acoustic signals, and judges the basic parameters of the seabed target, thereby drawing a map of the seabed. However, complex and changeable sea conditions seriously affect the quality of the map, and the side-scan sonar waterfall map is based on the received echo data and is formed by scanning lines in sequence, which is not measurable and cannot reflect the real seabed appearance. Therefore, only by combining the GPS coordinate data and placing the submarine target in its real position can the real seabed topography be accurately displayed. [0003] The commonly used method is to place strip images with the same geographical location information in corresponding positions...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/40
CPCG06T3/4053
Inventor 马国军王冬青夏健曾庆军
Owner JIANGSU UNIV OF SCI & TECH
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