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Marine moving target comprehensive detection method based on sequence images

A technology of moving targets and sequence images, which is applied in the field of remote sensing satellite image processing and application, can solve the problems of unsuitable broken cloud false alarm elimination, etc., to reduce the influence of clouds and broken clouds, reduce the false alarm rate, and improve the detection rate Effect

Active Publication Date: 2020-05-08
BEIJING INST OF SPACECRAFT SYST ENG
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Problems solved by technology

However, this method is not suitable for the elimination of broken cloud false alarms

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  • Marine moving target comprehensive detection method based on sequence images
  • Marine moving target comprehensive detection method based on sequence images
  • Marine moving target comprehensive detection method based on sequence images

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Embodiment Construction

[0042] The present invention will be further elaborated below in conjunction with embodiment.

[0043] The invention provides a comprehensive detection method for moving targets on the sea oriented to high-orbit optical satellite sequence images. This method considers the data characteristics of high-orbit optical satellite sequence images, combines relatively mature static image ship detection means and image processing technology, and adopts a static-dynamic combination method to improve the detection probability of moving targets on the sea surface. When , the cloud area is classified and processed, and the false alarm rate is reduced. The method is aimed at the sequence images that have been preprocessed, and the preprocessing content includes: geometric correction of each frame image, radiation correction and pixel-level registration between sequence images, sea and land segmentation, and sea island segmentation. Among them, in addition to correcting system errors, radio...

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Abstract

The invention relates to a marine moving target comprehensive detection method based on sequence images, and belongs to the field of remote sensing satellite image processing and application. The method comprises the steps of 1, photographing the sea surface; judging whether a cloud layer exists in the single-frame image; 2, setting a cloud layer gradient detection function delta (delta); when delta (delta) is 1, entering the step 3; when delta (delta) is 0, entering the step 4; 3, sequentially carrying out cloud removal, hole filling and target enhancement processing on the image; entering step 5; 4, performing multi-frame continuous image shooting, adopting a clustering method to determine a target white point, and performing cloud removal and target enhancement processing on other interference target points; and 5, when the target white point and the wake exist at the same time, completing target ship detection and target ship movement direction determination, and calculating the speed of the target ship; the motion direction and the motion state of the target are judged through multi-frame detection, the influence of most offshore clouds on target detection false alarms is eliminated, and the detection probability is improved.

Description

technical field [0001] The invention belongs to the field of image processing and application of remote sensing satellites, and relates to a comprehensive detection method for moving targets at sea based on sequence images. Background technique [0002] CN201810513672.0 A moving ship detection and tracking method based on satellite sequence images. The method proposed by the invention does not propose a solution to cloud interference, but in the optical image of the sea surface, various types of cloud interference are common, and there are few chances of no clouds, so the applicability of the method is restricted. [0003] "Journal of Electronics and Information Technology", Volume 37, Issue 8, August 2015, Rapid detection method for ships moving on sea surface by geostationary remote sensing satellites. This paper proposes a moving ship detection algorithm using sequence images, but this method does not mention the method of removing false alarms under cloudy conditions. ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/207G06T7/136
CPCG06T7/207G06T7/136G06T2207/10032G06T2207/20081G06T2207/30181Y02A90/10
Inventor 赵志伟王丹藏洁刘勇王晓晨高阳特折晓宇肖丰齐袁飞
Owner BEIJING INST OF SPACECRAFT SYST ENG
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