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High-precision pose calculation method based on laser ranging and camera vision fusion

A laser ranging and camera technology, applied in the field of high-precision pose calculation, can solve complex calculation problems

Active Publication Date: 2017-01-18
SHANGHAI AEROSPACE SYST ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method is complex to solve and has multiple solutions. For a long time, the research has mainly focused on how to solve and how many solutions there are in pure mathematics problems. Therefore, the research on practical engineering applications is of great significance

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  • High-precision pose calculation method based on laser ranging and camera vision fusion
  • High-precision pose calculation method based on laser ranging and camera vision fusion
  • High-precision pose calculation method based on laser ranging and camera vision fusion

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Embodiment Construction

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all examples. Based on the present invention All other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0046] In order to facilitate the understanding of the embodiments of the present invention, specific embodiments will be taken as examples for further explanation below in conjunction with the accompanying drawings, and each embodiment does not constitute a limitation to the embodiments of the present invention.

[0047] Such as figure 1 As shown, a high-precision pose calculation method based on laser ranging and camera vision fusion disclosed in the present invention includes t...

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Abstract

The invention discloses a high-precision position posture calculating method based on the laser ranging and the camera visual fusion. The high-precision position posture calculating method comprises the steps: (S1) performing linear modeling based on a camera visual position posture measuring algorithm of an NLSM (Non-linear Sigma Model) of a cooperative target; (S2) performing the linear modeling based on a multipoint laser range finder; and (S3) performing the linear modeling based on the laser ranging and the camera fusion. High-precision laser ranging information and high-precision angular resolution information of the camera are comprehensively utilized, so that the measuring precision of the position posture of the target is effectively improved, and the problem of fusion of the cooperative target-based laser ranging and the camera visual position posture measuring algorithm is solved.

Description

technical field [0001] The invention relates to the technical field of test and measurement, in particular to a high-precision pose solution method based on laser ranging and camera vision fusion. Background technique [0002] For SAR (Synthetic Aperture Radar, Synthetic Aperture Radar) imaging satellites, the deformation of the antenna has a significant impact on the imaging resolution and image quality of the satellite. The space-borne SAR antenna will be subjected to various loads in space during its orbital operation. These loads mainly include thermal loads, gravitational gradient moments, atmospheric drag, and satellite motion interference, which will cause antenna panel vibration and reduce the attitude stability and stability of the satellite. Pointing accuracy, and seriously affect the performance of the antenna, resulting in blurred imaging and reduced resolution; more seriously, the vibration may cause damage to the antenna structure. [0003] Therefore, after th...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/00G01C11/00
CPCG01C21/20
Inventor 黄建明魏祥泉陈凤刘玉刘鲁江
Owner SHANGHAI AEROSPACE SYST ENG INST