Ship target detection method

Abstract

The invention provides a ship target detection method, which comprises the following steps: carrying out gradient-based sea-sky-line extraction on an original visible light image to obtain the position of a sea-sky-line in the image, and segmenting a sea-sky-line area image containing a target based on the position of the sea-sky-line in the image; carrying out significance detection by adopting an improved multi-scale phase spectrum algorithm according to the obtained sea-sky-line area image to obtain a significance image; and performing OTSU threshold segmentation on the saliency image obtained in the step, wherein the segmented saliency image is the ship target. According to the method, the sea antenna can be quickly and accurately extracted, on the basis, aiming at different sizes of sea targets, improved multi-scale phase spectrum detection is adopted, the self-adaptability of an algorithm is improved, the ship targets on the sea antenna can be accurately detected, and the problemthat an existing detection method cannot quickly and adaptively detect the targets is solved.

Description

technical field [0001] The invention relates to a ship target detection method, in particular to a ship target detection method based on fast sea antenna extraction and improved multi-scale phase spectrum, and belongs to the field of precise guidance of missile terminal guidance systems. Background technique [0002] With the continuous update and development of modern science and technology, the use of new high-tech weapons, especially various precision-guided weapons, has a huge impact on the development of the war situation. It can accurately and quickly detect ship targets in the background of sea and sky, and has important application value for precise guidance. The difficulty of target detection in maritime scenes has an important relationship with the background to a certain extent. The more complex the background, the more difficult the detection is. Removing redundant background information plays an important role in the effective detection of ship targets. [0003...

AI Technical Summary

Problems solved by technology

Among them, in the existing sea-antenna extraction technology, methods based on straight line fitting, Hough transform and weighted information entropy are usually used. The position of the ship target in the detection imaging is very close to the sea antenna, and it is difficult to accurately extract the sea antenna by the above method; in addition, for the existing multi-scale phase spectrum detection algorithm, its adaptability is poor, and the detection results Not accurate enough

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