An Objective Deghosting Quality Metric for HDR Images

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dc.contributor.authorTursun, Okan Tarhanen_US
dc.contributor.authorAkyüz, Ahmet Oğuzen_US
dc.contributor.authorErdem, Aykuten_US
dc.contributor.authorErdem, Erkuten_US
dc.contributor.editorJoaquim Jorge and Ming Linen_US
dc.date.accessioned2016-04-26T08:37:42Z
dc.date.available2016-04-26T08:37:42Z
dc.date.issued2016en_US
dc.description.abstractReconstructing high dynamic range (HDR) images of a complex scene involving moving objects and dynamic backgrounds is prone to artifacts. A large number of methods have been proposed that attempt to alleviate these artifacts, known as HDR deghosting algorithms. Currently, the quality of these algorithms are judged by subjective evaluations, which are tedious to conduct and get quickly outdated as new algorithms are proposed on a rapid basis. In this paper, we propose an objective metric which aims to simplify this process. Our metric takes a stack of input exposures and the deghosting result and produces a set of artifact maps for different types of artifacts. These artifact maps can be combined to yield a single quality score. We performed a subjective experiment involving 52 subjects and 16 different scenes to validate the agreement of our quality scores with subjective judgements and observed a concordance of almost 80%. Our metric also enables a novel application that we call as hybrid deghosting, in which the output of different deghosting algorithms are combined to obtain a superior deghosting result.en_US
dc.description.number2en_US
dc.description.sectionheadersHDR Imagingen_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume35en_US
dc.identifier.doi10.1111/cgf.12818en_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages139-152en_US
dc.identifier.urihttps://doi.org/10.1111/cgf.12818en_US
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.subjectI.4.8 [Image Processing and Computer Vision]en_US
dc.subjectScene Analysisen_US
dc.subjectMotionen_US
dc.titleAn Objective Deghosting Quality Metric for HDR Imagesen_US
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