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Octree decomposition has been proven to be one of the most successful approaches for progressive geometry compression of 3D models. An octree is built up by recursively subdividing the bounding box of 3D models into a number of sub-cells. Each node of the octree has an 8-bit-binary code called occupancy code, indicating the non-emptiness of its children, given a pre-defined traversal order. Then the...
Archaeological line drawing is an essential component of an archaeological report. In this paper, we propose a multi-scale approach to generating 3D line drawing on a triangular mesh model for archaeological illustration. The discrete multi-scale representation of a given model is first constructed based on random walks. Then, we propose a probabilistic method for local scale selection based on the...
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