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A method and system for inversion of motion characteristics of single-star imaging target

A technology of motion characteristics and targets, applied in the field of image processing

Active Publication Date: 2020-06-23
PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV +1
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Problems solved by technology

There is an error between the target trajectory obtained by the existing reconstruction technology based on the linear propagation of light and the actual trajectory of the target

Method used

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  • A method and system for inversion of motion characteristics of single-star imaging target
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  • A method and system for inversion of motion characteristics of single-star imaging target

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Embodiment Construction

[0066] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0067] see figure 1 , figure 1 It is a flow chart of the method for retrieving the motion characteristics of a single-satellite imaging target according to the first embodiment of the present invention.

[0068] A method for inversion of motion characteristics of a single star imaging target, said method comprising the following steps:

[0069] Step S100: Acquiring sequence images containing imaging targets at different imaging moments;

[0070] Step S200: setting the emission point and the normal vector of the emission surface;

[0071] Step S300: Obtain the position of the target on the image sequence at different imaging moments, combine the normal vector of the emitting surface to reconstruct the spatial position of the target, and inver...

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Abstract

The invention discloses a single-satellite imaging target motion characteristic inversion method and system. The disclosed method includes the following steps: Step S100: Acquiring sequence images containing the imaging target at different imaging moments; Step S200: Setting the launch point and launch surface Normal vector; step S300: Obtain the position of the target on the image sequence at different imaging moments, combine the normal vector of the emitting surface to reconstruct the spatial position of the target, and invert the target motion parameters. Under the single-satellite platform, the error of the target in the space trajectory reconstruction process is reduced, and the inversion of the motion characteristics of the single-satellite imaging target is realized.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a single-satellite imaging target motion characteristic inversion method and system. Background technique [0002] The remote sensing measurement of the cooperative target can effectively obtain the target's motion characteristics, which is helpful to evaluate the effect of the target's flight test. The target trajectory reconstruction is the key technology of the target remote sensing measurement system. The target trajectory is reconstructed according to the target's imaging position on the image plane, camera parameters and other information, so as to effectively perceive the target information. The spatial trajectory and motion parameters of the target usually need to be observed by dual-satellite platforms to be reconstructed using binocular vision methods. Space trajectory reconstruction from observation data under a single satellite platform is a typical ill-condi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C11/00G06K9/00
CPCG01C11/00G06V20/13
Inventor 夏鲁瑞左峥嵘张占月李纪莲肖龙龙胡敏杨雪榕潘升东杨雅君
Owner PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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