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Tracking accuracy inversion method based on sequence images

A tracking accuracy, sequence image technology, applied in image enhancement, image analysis, image data processing and other directions, can solve problems such as lack of data

Active Publication Date: 2015-12-09
严格集团股份有限公司
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Problems solved by technology

[0002] In the field of aerospace, for the field of real-time tracking of satellites in orbit, domestic research focuses on the basic principles, structure, key technologies and tracking process of the tracking system, and the direction of tracking accuracy is also mainly focused on the causes of errors and the errors in each link of the imaging link. Quantitative analysis and calculation and research on the error compensation system, but there are few researches on the quantitative calculation of tracking accuracy based on image inversion, and this is a direction that has just been proposed in recent years, and there are few materials that can be consulted

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Embodiment Construction

[0015] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings, but it is not limited thereto. Any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention should be covered by the present invention. within the scope of protection.

[0016] The invention provides a tracking accuracy inversion method based on sequence images, which specifically includes the following contents:

[0017] 1. Question formulation and assumptions

[0018] The problem lies in: using the captured continuous image sequence, the inversion of the pointing error of the tracking observation satellite to the target satellite can cover the three situations of hovering, approaching and flying around.

[0019] The premises of this question include:

[0020] 1) The target satellite is a non-cooperative target, and ...

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Abstract

The invention discloses a tracking accuracy inversion method based on sequence images. The method includes the steps of: 1. based on orbit / attitude data of an observation satellite that are already known, orbit / attitude data of a target satellite and a continuous image sequence, adopting a coordinate conversion method to obtain an ideal position for selection of a target point; 2. obtaining the actual position of the target point through a method of obtaining a basic transformation matrix method based on coplanar feature point search; and 3. obtaining a difference between the ideal position and the actual position of the target point, and based on given camera parameters, obtaining an inversion error expressed in the form of an angle. The tracking accuracy inversion method provided by the invention uses the photographed continuous image sequence to track a pointing error of the observation satellite to the target satellite through inversion, and the method can cover three circumstances of hovering, approach and fly-around.

Description

technical field [0001] The invention belongs to the technical field of on-orbit real-time tracking of aerospace satellites, and relates to a tracking accuracy inversion method based on sequence images. Background technique [0002] In the field of aerospace, for the field of real-time tracking of satellites in orbit, domestic research focuses on the basic principles, structure, key technologies and tracking process of the tracking system, and the direction of tracking accuracy is also mainly focused on the causes of errors and the errors in each link of the imaging link. Quantitative analysis and calculation and research on the error compensation system, but there are few studies on the quantitative calculation of tracking accuracy based on image inversion, and this is a direction that has just been proposed in recent years, and there are few materials that can be consulted. Contents of the invention [0003] The purpose of the present invention is to provide a tracking ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06K9/46
CPCG06T2207/10032G06V10/462
Inventor 王征汪洪源侯晴宇王泽斌杨召松
Owner 严格集团股份有限公司
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