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Article: Shape from texture using the Wigner distribution

TitleShape from texture using the Wigner distribution
Authors
Issue Date1990
Citation
Computer Vision, Graphics And Image Processing, 1990, v. 52 n. 2, p. 248-263 How to Cite?
AbstractThis paper presents a method for estimating the orientation of a textured surface as a descriptor of surface shape. It is based on the analysis of local spectral information of the texture in an image. The local spectrum representation is computed by the two-dimensional Wigner distribution, which gives the spatial-frequency information as a function of location. The change in texture density, or the so-called texture gradient, caused by the perspective projection of a surface in the three-dimensional world onto the two-dimensional image plane, is computed from this space-frequency representation by measuring the high frequency energy distribution at each location of the image. The surface orientation is then estimated from the texture gradient. This method was implemented for the limited case of planar surfaces. Simulations were performed and results were analyzed to address issues related to the method's estimation accuracy, implementation, and limitations. © 1990.
Persistent Identifierhttp://hdl.handle.net/10722/65545
ISSN

 

DC FieldValueLanguage
dc.contributor.authorJau, JYen_HK
dc.contributor.authorChin, RTen_HK
dc.date.accessioned2010-08-31T07:15:16Z-
dc.date.available2010-08-31T07:15:16Z-
dc.date.issued1990en_HK
dc.identifier.citationComputer Vision, Graphics And Image Processing, 1990, v. 52 n. 2, p. 248-263en_HK
dc.identifier.issn0734-189Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/65545-
dc.description.abstractThis paper presents a method for estimating the orientation of a textured surface as a descriptor of surface shape. It is based on the analysis of local spectral information of the texture in an image. The local spectrum representation is computed by the two-dimensional Wigner distribution, which gives the spatial-frequency information as a function of location. The change in texture density, or the so-called texture gradient, caused by the perspective projection of a surface in the three-dimensional world onto the two-dimensional image plane, is computed from this space-frequency representation by measuring the high frequency energy distribution at each location of the image. The surface orientation is then estimated from the texture gradient. This method was implemented for the limited case of planar surfaces. Simulations were performed and results were analyzed to address issues related to the method's estimation accuracy, implementation, and limitations. © 1990.en_HK
dc.languageengen_HK
dc.relation.ispartofComputer Vision, Graphics and Image Processingen_HK
dc.titleShape from texture using the Wigner distributionen_HK
dc.typeArticleen_HK
dc.identifier.emailChin, RT: rchin@hku.hken_HK
dc.identifier.authorityChin, RT=rp01300en_HK
dc.description.naturelink_to_subscribed_fulltexten_HK
dc.identifier.scopuseid_2-s2.0-38249017087en_HK
dc.identifier.volume52en_HK
dc.identifier.issue2en_HK
dc.identifier.spage248en_HK
dc.identifier.epage263en_HK
dc.identifier.scopusauthoridJau, JY=6602808213en_HK
dc.identifier.scopusauthoridChin, RT=7102445426en_HK

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