Compression of Polynomial Texture Maps
Giovanni Motta, M.J. Weinberger · 2001
this paper, we investigate several compression schemes for PTM's, that either preserve every feature of the original texture map (lossless compression), or allow for a small reconstruction error (near-lossless and lossy compression). * Internal Accession Date Only Approved for External Publication Copyright Hewlett-Packard Company 2001 2 1. Introduction Polynomial Texture Maps (PTM's) were introduced by Malzbender et al. in [1] as an extension to conventional texture mappings. PTM's represent stationary 3D objects while providing enhanced image quality and improved perception of the object surface details. This representation is derived from a series of pictures of the same object taken with a conventional, stationary, digital camera under slightly different conditions (light direction, focus plane, illumination). Since both the camera and the object are stationary, the set of pixels in a common location carries information on t