SUB-PIXEL BAYESIAN-ESTIMATION OF ALBEDO AND HEIGHT

Citation
H. Shekarforoush et al., SUB-PIXEL BAYESIAN-ESTIMATION OF ALBEDO AND HEIGHT, International journal of computer vision, 19(3), 1996, pp. 289-300
Citations number
35
Categorie Soggetti
Computer Sciences, Special Topics","Computer Science Artificial Intelligence
ISSN journal
09205691
Volume
19
Issue
3
Year of publication
1996
Pages
289 - 300
Database
ISI
SICI code
0920-5691(1996)19:3<289:SBOAAH>2.0.ZU;2-2
Abstract
Given a set of low resolution camera images of a Lambertian surface, i t is possible to reconstruct high resolution luminance and height info rmation, when the relative displacements of the image frames are known . We have proposed iterative algorithms for recovering high resolution albedo with the knowledge of high resolution height and vice versa. T he problem of surface reconstruction has been tackled in a Bayesian fr amework and has been formulated as one of minimizing an error function . Markov Random Fields (MRF) have been employed to characterize the a priori constraints on the solution space. As for the surface height, w e have attempted a direct computation without refering to surface orie ntations, while increasing the resolution by camera jittering.