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hal.structure.identifierReal Expression Artificial Life [IRIT-REVA]
hal.structure.identifierTechnische Universität Munchen - Technical University Munich - Université Technique de Munich [TUM]
dc.contributor.authorQUÉAU, Yvain
hal.structure.identifierReal Expression Artificial Life [IRIT-REVA]
dc.contributor.authorDUROU, Jean-Denis
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
dc.contributor.authorAUJOL, Jean-François
dc.date.accessioned2024-04-04T03:08:22Z
dc.date.available2024-04-04T03:08:22Z
dc.date.created2016-06-13
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/193523
dc.description.abstractEnThe need for efficient normal integration methods is driven by several computer vision tasks such as shape-from-shading, photometric stereo, deflectometry, etc. In the first part of this survey, we select the most important properties that one may expect from a normal integration method, based on a thorough study of two pioneering works by Horn and Brooks [28] and by Frankot and Chellappa [19]. Apart from accuracy, an integration method should at least be fast and robust to a noisy normal field. In addition, it should be able to handle several types of boundary condition, including the case of a free boundary, and a reconstruction domain of any shape i.e., which is not necessarily rectangular. It is also much appreciated that a minimum number of parameters have to be tuned, or even no parameter at all. Finally, it should preserve the depth discontinuities. In the second part of this survey, we review most of the existing methods in view of this analysis, and conclude that none of them satisfies all of the required properties. This work is complemented by a companion paper entitled Variational Methods for Normal Integration, in which we focus on the problem of normal integration in the presence of depth discontinuities, a problem which occurs as soon as there are occlusions.
dc.language.isoen
dc.subject.en3D-reconstruction
dc.subject.enintegration
dc.subject.ennormal field
dc.subject.engradient field
dc.title.enNormal Integration: A Survey
dc.typeDocument de travail - Pré-publication
dc.subject.halInformatique [cs]/Vision par ordinateur et reconnaissance de formes [cs.CV]
dc.subject.halSciences de l'ingénieur [physics]/Traitement du signal et de l'image
dc.subject.halInformatique [cs]/Traitement des images
dc.identifier.arxiv1709.05940
bordeaux.hal.laboratoriesInstitut de Mathématiques de Bordeaux (IMB) - UMR 5251*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
hal.identifierhal-01334349
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01334349v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=QU%C3%89AU,%20Yvain&DUROU,%20Jean-Denis&AUJOL,%20Jean-Fran%C3%A7ois&rft.genre=preprint


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