Title
Calibration with ball objects for telecentric micro-vision system.
Abstract
The calibration of the micro-vision system is an fundamental issue in the micro-vision based measurement and control areas. The calibration methods for conventional macro-vision system are not suitable for telecentric micro-vision system. This paper proposes a calibration method with ball objects for the telecentric micro-vision system, which is used for the 3-dimensional relative pose measurement. The ball objects are low-cost and easy to be made. The intrinsic parameters and depth of field of camera are calibrated with a one-ball object. The angle between the camerau0027s optical axis and the linear stageu0027s axis is considered, and the image offset matrix caused by this angle is calibrated using the one-ball object. Furthermore, the image Jacobian matrices of two cameras are obtained by calibrating the two camerasu0027 rotation transformation using a two-ball object. The experimental results verify the calibration methodsu0027 effectiveness and accuracy.
Year
Venue
Field
2016
CASE
Computer vision,Jacobian matrix and determinant,Computer graphics (images),Machine vision,Computer science,Linear stage,Optical axis,Artificial intelligence,Rotation (mathematics),Offset (computer science),Calibration,Depth of field
DocType
Citations 
PageRank 
Conference
0
0.34
References 
Authors
4
5
Name
Order
Citations
PageRank
Fangbo Qin1114.78
De Xu214225.04
Fei Shen352.54
Dapeng Zhang412.65
Xilong Liu5256.09