Highly detailed polygonal meshes nowadays were created vastly from a great number of multimedia applications. Insufficient main memory space and inferior locality-of-reference nature of the input mesh sequence incurred frequent page swaps and extremely low runtime efficiency. To address this issue, techniques based on the models of graph layout, matrix bandwidth minimization, and space-filling-curves were reported. However, such models merely considered the optimization of vertex layout on the basis of the graph distance or matrix bandwidths while leave the optimization of face layout either unoptimized or resorted an additional sorting procedure. In this paper, we propose an improved theoretic model suggesting the optimization of index-faced triangular mesh layout on the basis of a jointly consideration on both the vertex and face layout. Unlike previous attempts, we do not need additional efforts in optimizing one layout after the other by sorting, the optimized layouts are generated on the fly with each other with respect to both the vertex or triangle bandwidths. According to the experimental results, our approach outperforms the CM and SFC methods not only at yielding better theoretical results but also at improving the runtime efficiency of large mesh simplification.
Multimedia Tools and Applications – Springer Journals
Published: Apr 1, 2017
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