VAST09: The 10th International Symposium on Virtual Reality, Archaeology and Intelligent Cultural Heritage
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Browsing VAST09: The 10th International Symposium on Virtual Reality, Archaeology and Intelligent Cultural Heritage by Subject "Categories and Subject Descriptors (according to ACM CCS): I.4.1 [Image Processing and Computer Vision]: Digitization and Image Capture"
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Item Optimized Image Sampling for View and Light Interpolation(The Eurographics Association, 2009) Gunawardane, Prabath; Wang, Oliver; Scher, Steven; Rickards, Ian; Davis, James; Malzbender, Tom; Kurt Debattista and Cinzia Perlingieri and Denis Pitzalis and Sandro SpinaAccurate virtual reconstruction of real world objects has long been a desired goal of image-based computer graphics. Usually this involves a lengthy capture process where an object is photographed from different viewpoints and illumination conditions. Using this collection of input images, we can now re-render the object from any viewing angle or lighting condition. However, acquiring a dense sampling of both the lighting and view space is time consuming. We carry out an analysis on this combined lighting and view space to find the optimal sampling given a restricted image budget. We also analyze the order of interpolation and find that improved results are obtained by interpolating first in viewpoint and second in lighting, the reverse of the usual order.