Reference TypeConference Proceedings
Citation KeyTorreãoMatt:1995:OpFlAp
Author1 Torreão, José R. A.
2 Mattos, Germana M.
Affiliation1 Departamento de Informática da Universidade Federal de Pernambuco (UFPE)
2 Departamento de Informática da Universidade Federal de Pernambuco (UFPE)
TitleAn Optical Flow Approach to Photometric Stereo
Conference NameSimpósio Brasileiro de Computação Gráfica e Processamento de Imagens, 8 (SIBGRAPI)
EditorLotufo, Roberto de Alencar
Mascarenhas, Nelson Delfino d'Ávila
Book TitleAnais
Date25 - 27 out. 1995
Publisher CityPorto Alegre
PublisherSociedade Brasileira de Computação
Conference LocationSão Carlos
Keywordsoptical Flow, photometric stereo.
AbstractWe introduce a new approach to photometric stereo (PS) in which the optical flow resulting from the change of illumination of the image surface is estimated and used for depth reconstruction through a structure from-motion scheme. The optical flow of the PS images is determined via a gradient-based algorithm, while a least-squares strategy is used for the structure-from-motion reconstruction, assuming that the irradiance pattern over the imaged surface undergoes a purely rotational rigid-body motion, when the illumination direction is changed. Our approach to PS has been successfully applied in the estimation of shape from both synthetic and real images of lambertian surfaces.
TypeVisão por Computador
Tertiary TypeArtigo
FormatImpresso, On-line.
Size4140 KiB
Number of Files1
Target File27 An optical flow approach.pdf
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Metadata Last Update2013: {D 1995}
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