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  Graphics Interface

Granados Velásquez, M. A., Seidel, H.-P., & Lensch, H. P. A. (2008). Graphics Interface. In C. Shaw, & L. Bartram (Eds.), Graphics Interface 2008: proceedings (pp. 33-40). New York, NY: ACM Press.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-1BD5-6 Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-000F-1BD6-4
Genre: Konferenzbeitrag

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 Urheber:
Granados Velásquez, Miguel Andrés1, 2, Autor           
Seidel, Hans-Peter1, Autor           
Lensch, Hendrik P. A.1, Autor           
Affiliations:
1Computer Graphics, MPI for Informatics, Max Planck Society, ou_40047              
2International Max Planck Research School, MPI for Informatics, Max Planck Society, ou_1116551              

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Schlagwörter: -
 Zusammenfassung: We address the problem of reconstructing the background of a scene from a set of photographs featuring several occluding objects. We assume that the photographs are obtained from the same viewpoint and under similar illumination conditions. Our approach is to define the background as a composite of the input photographs. Each possible composite is assigned a cost, and the resulting cost function is minimized. We penalize deviations from the following two model assumptions: background objects are stationary, and background objects are more likely to appear across the photographs. We approximate object stationariness using a motion boundary consistency term, and object likelihood using probability density estimates. The penalties are combined using an entropy-based weighting function. Furthermore, we constraint the solution space in order to avoid composites that cut through objects. The cost function is minimized using graph cuts, and the final result is composed using gradient domain fusion. We demonstrate the application of our method to the recovering of clean, unoccluded shots of crowded public places, as well as to the removal of ghosting artifacts in the reconstruction of high dynamic range images from multi-exposure sequences. Our contribution is the definition of an automatic method for consistent background estimation from multiple exposures featuring occluders, and its application to the problem of ghost removal in high dynamic range image reconstruction.

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Sprache(n): eng - English
 Datum: 2009-03-252008
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: New York, NY : ACM Press
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: eDoc: 428095
DOI: http://doi.acm.org/10.1145/1375714.1375721
URI: http://www.mpi-inf.mpg.de/~granados/papers/granados08_bgestimation.pdf
Anderer: Local-ID: C125756E0038A185-67F1775FE220D8F7C125754B0055108E-Granados2008
 Art des Abschluß: -

Veranstaltung

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Titel: Untitled Event
Veranstaltungsort: Windsor, Ontario, Canada
Start-/Enddatum: 2008-05-28 - 2008-05-30

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Quelle 1

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Titel: Graphics Interface 2008 : proceedings
Genre der Quelle: Konferenzband
 Urheber:
Shaw, Chris, Herausgeber
Bartram, Lyn, Herausgeber
Affiliations:
-
Ort, Verlag, Ausgabe: New York, NY : ACM Press
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: 33 - 40 Identifikator: ISBN: 978-1-56881-423-0

Quelle 2

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Titel: ACM International Conference Proceeding Series
Genre der Quelle: Reihe
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: - Identifikator: -