Dihedral Angle Mesh Error: a Fast Perception Correlated Distortion Measure for Fixed Connectivity Triangle Meshes

dc.contributor.authorVása, Liboren_US
dc.contributor.authorRus, Janen_US
dc.contributor.editorEitan Grinspun and Niloy Mitraen_US
dc.date.accessioned2015-02-28T07:44:13Z
dc.date.available2015-02-28T07:44:13Z
dc.date.issued2012en_US
dc.description.abstractIn computer graphics, triangle meshes are ubiquitous as a representation of surface models. Processing of this kind of data, such as compression or watermarking, often involves an unwanted distortion of the surface geometry. Advanced processing algorithms are continuously being proposed, aiming at improving performance (compression ratio, watermark robustness and capacity), while minimizing the introduced distortion. In most cases, the final resulting mesh is intended to be viewed by a human observer, and it is therefore necessary to minimise the amount of distortion perceived by the human visual system. However, only recently there have been studies published on subjective experiments in this field, showing that previously used objective error measures exhibit rather poor correlation with the results of subjective experiments. In this paper, we present results of our own large subjective testing aimed at human perception of triangle mesh distortion. We provide an independent confirmation of the previous result by Lavoué et al. that most current metrics perform poorly, with the exception of the MSDM/MSDM2 metrics. We propose a novel metric based on measuring the distortion of dihedral angles, which provides even higher correlation with the results of our experiments and experiments performed by other researchers. Our metric is about two orders of magnitude faster than MSDM/MSDM2, which makes it much more suitable for usage in iterative optimisation algorithms.en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume31
dc.identifier.doi10.1111/j.1467-8659.2012.03176.x
dc.identifier.issn1467-8659en_US
dc.identifier.urihttps://doi.org/10.1111/j.1467-8659.2012.03176.xen_US
dc.publisherThe Eurographics Association and Blackwell Publishing Ltd.en_US
dc.subjectModels And Principles [H.1.2]en_US
dc.subjectUser/Machine Systemsen_US
dc.subjectHuman Factors Image Processing And Computer Vision [I.4.2]en_US
dc.subjectCompression (Coding)en_US
dc.subjectApproximate MethodsKeywordsen_US
dc.subjectdistortionen_US
dc.subjectmetricen_US
dc.subjectmeasureen_US
dc.subjectdifferenceen_US
dc.subjectdihedral angleen_US
dc.subjectmasking effecten_US
dc.subjectvisibilityen_US
dc.subjectcorrelationen_US
dc.subjectsubjectiveen_US
dc.subjectperceptionen_US
dc.titleDihedral Angle Mesh Error: a Fast Perception Correlated Distortion Measure for Fixed Connectivity Triangle Meshesen_US
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