Camera parameters calibration method based on binocular vision system in wide field

Abstract

Abstract:

A mathematical relationship among world coordinate system, camera coordinate system and image coordinate system is established based on pinhole model of cameras. Explicit expressions of relevant camera parameters are given theoretically, and on this basis, the relationship between parameters and coordinates are investigated.Accuracy of the results for each parameter calibration are verified by obtaining experimental data. According to the relationship between target coordinates (u,v) in the image coordinate system and its corresponding coordinates in the world coordinate system, all coordinates are calculated based on the results of above calibration. Then these coordinates are compared with the coordinates calculated by GPS and parameter reference values respectively. Finally, a method of camera calibration is proposed based on binocular vision within an error permissible range.

Key words: binocular vision system, pinhole model, camera calibration, object positioning, world coordinate system, image coordinate system

CLC Number:

V355
TP391

WANG Jian, WANG Yusheng, LIU Feng, LI Qingjia. Camera parameters calibration method based on binocular vision system in wide field[J]. .

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Camera parameters calibration method based on binocular vision system in wide field

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