Title :
A target-adapted geometric calibration method for camera-projector system
Author :
Chien, H.-J. ; Chen, Ching-Yi ; Chen, C. -Y
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Nat. Univ. of Kaohsiung, Kaohsiung, Taiwan
Abstract :
The calibration of a camera-projector system has recently become a popular topic in computer vision. It is also a key procedure in structured-light-based 3-d profiling technique. Typically a camera is calibrated using point correspondences between image pixels and world coordinates. When it comes to projector calibration, a difficulty arises in establishing accurate point correspondences for the projector. This paper proposes a flexible, practical and economical approach to exploit both intrinsic and extrinsic parameters of the projector using a planar checkerboard commonly used to calibrate an image sensor. Experimental results show that the proposed method has an improvement of more than 80% over traditional method.
Keywords :
calibration; cameras; computer vision; image sensors; camera-projector system; computer vision; image pixels; image sensor calibration; planar checkerboard; point correspondences; structured-light-based 3D profiling technique; target-adapted geometric calibration method; world coordinates; Accuracy; Calibration; Cameras; Image color analysis; Integrated circuits; Optimization; Stereo vision; Camera-projector system; active stereo; projector calibration; structured light;
Conference_Titel :
Image and Vision Computing New Zealand (IVCNZ), 2010 25th International Conference of
Conference_Location :
Queenstown
Print_ISBN :
978-1-4244-9629-7
DOI :
10.1109/IVCNZ.2010.6148842
