Rapid classification of specular and diffuse reflection from image velocities

Authors:
K. Doerschner;D. Kersten;P. R. Schrater
Affiliations:
National Research Center for Magnetic Resonance (UMRAM), Bilkent Cyberpark, C-Blok Kat 2, 06800 Ankara, Turkey and Department of Psychology, Bilkent University, 06800 Ankara, Turkey;Department of Psychology, University of Minnesota, 75 East River Road, Minneapolis, MN 55455, USA;Department of Psychology, University of Minnesota, 75 East River Road, Minneapolis, MN 55455, USA and Department of Computer Science and Engineering, University of Minnesota, 200 Union Street SE, ...
Venue:
Pattern Recognition
Year:
2011

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Abstract

We propose a method for rapidly classifying surface reflectance directly from the output of spatio-temporal filters applied to an image sequence of rotating objects. Using image data from only a single frame, we compute histograms of image velocities and classify these as being generated by a specular or a diffusely reflecting object. Exploiting characteristics of material-specific image velocities we show that our classification approach can predict the reflectance of novel 3D objects, as well as human perception.