A method for detecting ocean internal waves in satellite SAR images and related equipment

Abstract

The present application relates to a method for detecting ocean internal waves in satellite SAR images and related equipment. The method includes: generating an ocean area image based on a target area in a SAR image; determining a set of edge feature lines of the ocean internal wave area based on an edge detection operator; determining a target edge feature line from multiple edge feature lines in the edge feature line set to determine the spatial distribution characteristics of the ocean internal waves; determining the direction information corresponding to the target edge feature line, and classifying the target edge feature line to determine the directional distribution characteristics of the ocean internal waves; processing the ocean internal wave area image corresponding to the ocean internal wave area based on morphological characteristics, spatial distribution characteristics, and directional distribution characteristics to determine the centroid position of the ocean internal waves, and determining the wavelength information of the ocean internal waves based on the centroid position. Based on the above method, it is possible to reduce the resource occupation of ocean internal wave detection in SAR images, realize on-board processing, and improve real-time performance and response speed.

Images