Full-strapdown image seeker target tracking method based on direct aiming template

A target tracking and seeker technology, which is applied in the field of image processing and machine vision, and can solve problems such as scale difference and viewing angle difference.

Active Publication Date: 2021-03-12
湖南华南光电(集团)有限责任公司
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Problems solved by technology

[0003] In view of the above problems, the object of the present invention is to provide a target tracking method for a full strapdown image seeker based on a direct aiming template, which can solve the difference in viewing angle between the direct aiming template and the target map obtained by the full strapdown image seek

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  • Full-strapdown image seeker target tracking method based on direct aiming template
  • Full-strapdown image seeker target tracking method based on direct aiming template
  • Full-strapdown image seeker target tracking method based on direct aiming template

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Embodiment Construction

[0058] The specific implementation method of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0059] Such as figure 1 As shown, a strapdown image seeker target tracking method based on direct sight template, its specific implementation steps are as follows:

[0060] (1) Load the direct aiming template 1 and the corresponding latitude and longitude height and attitude data in the full strapdown image seeker, and the full strapdown image seeker uses the loaded direct aiming template 1 to perform image correction to obtain the target template for tracking 2.

[0061] (2) The target template 2 is matched with the real-time image of the nearby target and area (hereinafter referred to as the real-time image) acquired by the full strapdown image seeker. If the matching is successful, the initial position of the target in the image can be obtained. If the matching is unsuccessful Continue to send real-time graphs for matching. ...

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Abstract

The invention discloses a full-strapdown image seeker target tracking method based on a direct aiming template, which corrects a target image by using the direct aiming template and inertial navigation information to enable the target image to be consistent with a view angle and a scale between target images acquired by a full-strapdown image seeker, and has the characteristic of high tracking precision. The target tracking range can be reduced by fusing inertial navigation information and image information target memory tracking methods, and the problems of translation invariance, scale invariance and rotation invariance are solved; interference of similar targets is filtered, and target tracking is processed under the conditions of non-linear maneuvering short-time field of view, shielding and the like of the targets; a hill-climbing search strategy is adopted and improved mutual information entropy is used as a similarity measurement function, so that the method has the advantages of small calculated amount and strong anti-interference capability, and the target tracking robustness can be improved.

Description

technical field [0001] The invention belongs to the field of image processing and machine vision, and relates to a target tracking method for an open-ground full strapdown image seeker, in particular to a real-time tracking method for direct aiming at a template to attack a stationary target on the ground, which is suitable for full strapdown image guidance The principle is also applicable to all imaging guided weapons. Background technique [0002] The instantaneous optical field of view of the all-strapdown image seeker is large, which makes the image signal noise and the calculation amount of image processing large; at the same time, its photodetector is fixedly connected to the reference seat, which is greatly disturbed by the carrier, and it is easy to There are phenomena such as target non-linear maneuvering out of the field of view, geometric deformation, and occlusion; its direct aiming template is generated by reconnaissance equipment such as the pod distributed ape...

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Application Information

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IPC IPC(8): G06T7/246G06T7/238G06K9/62
CPCG06T7/251G06T7/238G06T2207/10004G06V10/751
Inventor 周伟卢鑫陆叶颜有翔周波李路李显彦胡军朱磊马帅宝
Owner 湖南华南光电(集团)有限责任公司
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