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Wavelet-Texture Method: Appearance Compression by Daubechies Wavelet, Reflection Model, and Polarization

Abstract : In order to create a photorealistic Virtual Reality model, we have to record the appearance of the object from different directions under different illuminations. In this paper, we propose a method that renders photorealistic images from a small amount of data. First, we separate the images of the object into a diffuse reflection component and a specular reflection component by using linear polarizers. Then, we estimate the parameters of the reflection model for each component. Finally, we compress the difference between the input images and the rendered images by using wavelet transform. At the rendering stage, we first calculate the diffuse and specular reflection images from the reflection parameters, then add the difference decompressed by inverse wavelet transform into the calculated reflection images, and finally obtain the photorealistic image of the object.
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https://hal.inria.fr/inria-00264847
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Daisuke Miyazaki, Tadashi Shibata, Katsushi Ikeuchi. Wavelet-Texture Method: Appearance Compression by Daubechies Wavelet, Reflection Model, and Polarization. Proceedings of the First International Workshop on Photometric Analysis For Computer Vision - PACV 2007, Oct 2007, Rio de Janeiro, Brazil. 8 p. ⟨inria-00264847⟩

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