Pyramid calibration and correspondence analysis in binocular vision
Yuqing Fu, Jianzhou Zhang, Bin Xia · 2002
The authors present a technique for 3-D camera calibration using a pyramid calibration frame. The focus is on camera calibration and correspondence analysis. A rule is presented to set up precorrespondence automatically before the calibration process begins. To strengthen practicability, a careful discussion on the change of the parameters of a calibration matrix when the camera moves is provided. Five constraints are integrated into a feature-point-based matching algorithm: epipolar, common view, uniqueness, compatibility, and model. The calibration process equips the stereo system with common view and model constraints. Uniqueness and compatibility constraints have their origins in Marr's (1982) stereo theory. Based on the calibration process, a stereo algorithm synthesizes general constraints and is applied to a real situation. The experimental results have shown its practical use in a general situation.>