Title :
Vergence control using a hierarchical image structure
Author :
Yim, Changhoon ; Bovik, Alan C.
Author_Institution :
Lab. for Vision Syst., Texas Univ., Austin, TX, USA
Abstract :
This paper presents a fast and reliable vergence control method using a hierarchical image structure for active vision systems. In this method, the sign pyramid is generated from the Laplacian pyramid. The search for the common fixation point and the disparity value of that point is performed by sign-correlation matching and a coarse-to-fine search strategy. This method works well for a very large range of disparities and is not sensitive to calibration problems common to stereo images
Keywords :
computer vision; image sequences; stereo image processing; Laplacian pyramid; active vision systems; coarse-to-fine search; common fixation point; disparity value; hierarchical image structure; sign pyramid; sign-correlation matching; stereo image; vergence control method; Cameras; Control systems; Focusing; Humans; Laboratories; Laplace equations; Machine vision; Optical control; Optical filters; Stereo vision;
Conference_Titel :
Image Analysis and Interpretation, 1994., Proceedings of the IEEE Southwest Symposium on
Conference_Location :
Dallas, TX
Print_ISBN :
0-8186-6250-6
DOI :
10.1109/IAI.1994.336672
