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Authors: Erik Hubo, Tom Mertens, Tom Haber and Philippe Bekaert
Type: Full Paper
Conference Name: The 2007 Symposium on Point Based Graphics
Conference Location: Prague, Czech republic
Date: 2 Sept - 3 Sept 2007
Many real-world, scanned surfaces contain repetitive structures, like bumps, ridges, creases, and so on. We present
a compression technique that exploits self-similarity within a point-sampled surface. Our method replaces similar
surface patches with an instance of a representative patch. We use a concise shape descriptor to identify and
cluster similar patches. Decoding is achieved through simple instancing of the representative patches. Encoding
is efficient, and can be applied to large datasets consisting of millions of points. Moreover, our technique offers
random access to the compressed data, making it applicable to ray tracing, and easily allows for storing additional
point attributes, like normals.