Linear image reconstruction by Sobolev norms on the bounded domain

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Abstract

The reconstruction problem is usually formulated as a variational problem in which one searches for that image that minimizes a so called prior (image model) while insisting on certain image features to be preserved. When the prior can be described by a norm induced by some inner product on a Hilbert space the exact solution to the variational problem can be found by orthogonal projection. In previous work we considered the image as compactly supported in and we used Sobolev norms on the unbounded domain including a smoothing parameter ¿>¿0 to tune the smoothness of the reconstruction image. Due to the assumption of compact support of the original image components of the reconstruction image near the image boundary are too much penalized. Therefore we minimize Sobolev norms only on the actual image domain, yielding much better reconstructions (especially for ¿¿»¿0). As an example we apply our method to the reconstruction of singular points that are present in the scale space representation of an image.
Original languageEnglish
Title of host publicationProceedings of the First International Conference on Scale Space and Variational Methods in Computer Vision (SSVM 2007) 30 May - 2 June 2007, Ischia, Italy
EditorsF. Sgallari, A. Murli, N. Paragios
Place of PublicationBerlin, Germany
PublisherSpringer
Pages55-67
ISBN (Print)978-3-540-72822-1
DOIs
Publication statusPublished - 2007
EventFirst International Conference on Scale Space and Variational Methods in Computer Vision (SSVM 2007) - Ischia, Italy
Duration: 30 May 20072 Jun 2007

Publication series

NameLecture Notes in Computer Science
Volume4485
ISSN (Print)0302-9743

Conference

ConferenceFirst International Conference on Scale Space and Variational Methods in Computer Vision (SSVM 2007)
CountryItaly
CityIschia
Period30/05/072/06/07

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