Multi-spectral image ship detection method based on selective visual attention mechanism

Abstract

The invention belongs to the technical field of remote sensing image target detection, and in particular relates to a multi-spectral image ship target rapidly detection method based on a selective visual attention mechanism. The method comprises the following steps: constructing a multi-dimensional database into a biquaternion form; and extracting a salient region for detecting a salient object by use of the phase spectrum of biquaternion Fourier transform, thereby achieving integrated treatment of the multi-dimensional data and fully utilizing the information of the spectrum domain and the space domain. By utilizing the method, the defects of the conventional multi-spectral image ship detection method, such as high calculation complexity and complex parameter setting can be effectively overcome. The test results of the analog data and real multi-spectral remote sensing data show that the method has the advantages of good detection result and stronger robustness to noises. The method has great application value in fields of the marine fishery, marine transportation regulation, marine military monitoring and the like.

Description

Multispectral Image Ship Detection Method Based on Selective Visual Attention Mechanism technical field The invention belongs to the technical field of remote sensing image processing, and in particular relates to a method for rapidly detecting ship targets in multi-spectral remote sensing images based on a selective visual attention mechanism. Background technique The multi-spectral imaging sensor can obtain the spectral information of the substances corresponding to each band in the spectral dimension, and at the same time obtain the spatial information of the scene in the spatial dimension, forming a multi-dimensional data body containing rich information. Therefore, multispectral image data has unique advantages in target detection, and ship detection at sea is of great significance in marine fisheries, marine transportation, and military monitoring. The commonly used multi-spectral target detection method is usually a statistical detection method based on spectral in...

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Problems solved by technology

In particular, quaternions are used to comprehensively express the color (red-green and blue-yellow antagonism) and brightness features (PQFT) of images [13], which can simultaneously process multiple information and have better properties than multiple single-channel processing. However, , PQFT is only suitable for saliency detection in color images with red-green and blue-yellow antagonistic expressions, etc.

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