Ship detection method based on a sea surface infrared remote sensing image

Abstract

The invention discloses a ship detection method based on a sea surface infrared remote sensing image. The ship detection method comprises the following steps: dividing and quantifying the infrared remote sensing image to obtain infrared remote sensing image quantification subblocks; Carrying out statistics on each infrared remote sensing image quantization sub-block to obtain temperature distribution of the infrared remote sensing image quantization sub-blocks; Dividing the infrared remote sensing image quantization sub-blocks into three types of scenes according to the temperature frequency distribution concentration of the infrared remote sensing image quantization sub-blocks; Quantifying the sub-blocks of the infrared remote sensing image in the scene without obvious shielding and thincloud shielding, and determining an offshore target by counting the cumulative distribution of the temperature frequency; And quantifying the sub-blocks of the infrared remote sensing image in the thick cloud shielding scene, performing circumferential filtering on all pixel points in the sub-blocks, and determining an offshore target. According to the invention, the detection accuracy of the infrared remote sensing image ship under different marine scenes is greatly improved.

Description

Technical field [0001] The invention relates to a remote sensing image marine detection method, in particular to an infrared remote sensing image marine detection method based on sea scene classification, and belongs to the technical field of digital image processing. Background technique [0002] Remote sensing image ship detection can effectively monitor ships in the "two oceans and four seas" area, and play a pivotal role in maintaining channel safety, supervising the marine exclusive economic zone, and reducing disputes; in civil use, remote sensing image ship detection is at sea Traffic control, marine environment monitoring, and fighting against illegal fishing, smuggling and smuggling play an important role. [0003] The infrared sensor uses the thermal radiation difference between the target and the environment to image, with high temperature sensitivity, large dynamic range, high spatial resolution, strong fog penetration, and can work day and night. With the implementati...

AI Technical Summary

Problems solved by technology

Among them, the methods based on visual perception mechanism mainly include methods based on selective attention mechanism, visual saliency model and visual asymmetry mechanism, which are easily disturbed by light, weather and sea conditions, and have poor adaptability; The method mainly detects ships from grayscale information such as contrast, gradient, edge, variance, etc., and has poor adaptability to different types of sea scenes.

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