Rendering 2022 - Symposium Track
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Browsing Rendering 2022 - Symposium Track by Author "Lin, Yiming"
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Item Polarization-imaging Surface Reflectometry using Near-field Display(The Eurographics Association, 2022) Nogue, Emilie; Lin, Yiming; Ghosh, Abhijeet; Ghosh, Abhijeet; Wei, Li-YiWe present a practical method for measurement of spatially varying isotropic surface reflectance of planar samples using a combination of single-view polarization imaging and near-field display illumination. Unlike previous works that have required multiview imaging or more complex polarization measurements, our method requires only three linear polarizer measurements from a single viewpoint for estimating diffuse and specular albedo and spatially varying specular roughness. We obtain highquality estimate of the surface normal with two additional polarized measurements under a gradient illumination pattern. Our approach enables high-quality renderings of planar surfaces while reducing measurements to a near-optimal number for the estimated SVBRDF parameters.