Title :
Reconstruction of high resolution 3D visual information
Author :
Berthod, M. ; Shekarforoush, H. ; Werman, M. ; Zerubia, J.
Author_Institution :
INRIA, Sophia Antipolis, France
Abstract :
Given a set of low resolution camera images, it is possible to reconstruct high resolution luminance and depth information, specially if the relative displacements of the image frames are known. We propose iterative algorithms for recovering hash resolution albedo and depth maps that require no a priori knowledge of the scene, and therefore do not depend on other methods, as regards boundary and initial conditions. The problem of surface reconstruction has been formulated as one of expectation maximization (EM) and has been tackled in a probabilistic framework using Markov random fields (MRF). As for the depth map, our method directly recovers surface heights without refering to surface orientations, while increasing the resolution by camera jittering. Conventional statistical models have been coupled with geometrical techniques to construct a general model of the world and the imaging process
Keywords :
Markov processes; image reconstruction; statistical models; Markov random fields; depth information; expectation maximization; high resolution 3D visual information reconstruction; low resolution camera images; luminance; relative displacements; statistical models; surface reconstruction; Image reconstruction; Image resolution; Markov processes;
Conference_Titel :
Computer Vision and Pattern Recognition, 1994. Proceedings CVPR '94., 1994 IEEE Computer Society Conference on
Conference_Location :
Seattle, WA
Print_ISBN :
0-8186-5825-8
DOI :
10.1109/CVPR.1994.323784