Positioning precision analysis for three-dimensional target based on compound eye system

Guo Fang; Lian Guofu; Zhang Ning

In order to prompt the positioning precision for three -dimension target, a compound eye system is introduced, and the process that the multi-eye of compound eye influences on the positioning precision was analyzed, and the simulation analysis was finished. Firstly, a compound eye as the positioning system was introduced. Subsequently, the optical model of incident ray from target to imaging lens was built. Next, three-dimension coordinates of special target array points are set. According to the three-dimension coordinate of each target point and the three-dimension coordinate of its imaging lens, the incident angle from the target to its imaging lens was solved. Then, the corresponding relation between every incident angle and its imaging point coordinate was established as the calibration result of the imaging system. Finally, the three -dimension coordinate of a target point was solved with various sub-eyes according to the calibration result. The simulation results show that the compound eye system with multi-eye could provide higher positioning precision, and the more sub-eyes, the higher precision. The scheme can guide the manufacture of compound eye for target positioning with high precision and expand its applicable range in the further.

1. Department of Information Science and Engineering,Fujian University of Technology,Fuzhou 350118,China;

2. Department of Mechanical and Automotive Engineering,Fujian University of Technology,Fuzhou 350118,China

Received Date: 2014-04-10

Rev Recd Date: 2014-05-15

Publish Date: 2014-12-25

Key words:

Abstract: In order to prompt the positioning precision for three -dimension target, a compound eye system is introduced, and the process that the multi-eye of compound eye influences on the positioning precision was analyzed, and the simulation analysis was finished. Firstly, a compound eye as the positioning system was introduced. Subsequently, the optical model of incident ray from target to imaging lens was built. Next, three-dimension coordinates of special target array points are set. According to the three-dimension coordinate of each target point and the three-dimension coordinate of its imaging lens, the incident angle from the target to its imaging lens was solved. Then, the corresponding relation between every incident angle and its imaging point coordinate was established as the calibration result of the imaging system. Finally, the three -dimension coordinate of a target point was solved with various sub-eyes according to the calibration result. The simulation results show that the compound eye system with multi-eye could provide higher positioning precision, and the more sub-eyes, the higher precision. The scheme can guide the manufacture of compound eye for target positioning with high precision and expand its applicable range in the further.

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Reference (31)

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Positioning precision analysis for three-dimensional target based on compound eye system

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