Reference TypeConference Proceedings
Citation KeyTorreãoPimeRoe:1993:ObSuCu
Author1 Torreão, José Ricardo de Almeida
2 Pimentel, Cecílio José Lins
3 Roe, Edward
Affiliation1 Departamento de Informática da Universidade Federal de Pernambuco (UFPE)
2 Departamento de Informática da Universidade Federal de Pernambuco (UFPE)
3 Departamento de Informática da Universidade Federal de Pernambuco (UFPE)
TitleObtaining surface curvature and depth information with a disparity-based photometric stereo
Conference NameSimpósio Brasileiro de Computação Gráfica e Processamento de Imagens, 6 (SIBGRAPI)
EditorFigueiredo, Luiz Henrique de
Gomes, Jonas de Miranda
Book TitleAnais
Date19 - 22 out. 1993
Publisher CityPorto Alegre
PublisherSociedade Brasileira de Computação
Conference LocationRecife
KeywordsDisparity-Based Photometric Stereo, computer vision, photometric images.
AbstractDisparity-Based Photometric Stereo (DBPS) is a recently introduced Computer Vision process which extracts a disparity field from two or more photometric stereo images by tracking the displacement of pixel intensities resulting from the change in the illumination of the observed scene. Such photometric-disparity field is akin to the disparity field due to the change of viewing position in Stereoscopy, and can be obtained through essentially the same stereo correspondence algorithms. In the present article, we relate the photometric-disparity field to the curvature of the imaged surfaces, and also show how it can be used for the inference of depth through a new version of the Dual Photometric Stereo process, which employs two cameras and multiple illuminations. We illustrate our approach with a neural net simulation of the stereo correspondence algorithms.
TypeVisão por Computador
Tertiary TypeArtigo
FormatImpresso, On-line.
Size7285 KiB
Number of Files1
Target File28 Obtaining surface curvature.pdf
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