Abstract
A progressive 3D triangular mesh compression algorithm built on the MOG-based Bayesian entropy coding and the gradual prediction scheme is proposed in this work. For connectivity coding, we employ MOG models to estimate the posterior probabilities of topology symbols given vertex geometries. Then, we encode the topology symbols using an arithmetic coder with different contexts, which depend on the posterior probabilities. For geometry coding, we propose the gradual prediction labeling and the dual-ring prediction to divide vertices into groups and predict later groups more efficiently using the information in already encoded groups. Simulation results demonstrate that the proposed algorithm provides significantly better performance than the conventional wavemesh coder, with the average bit rate reduction of about 16.9 %.
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Acknowledgements
This work was supported partly by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2012-011031), and partly by the Global Frontier R&D Program on Human-centered Interaction for Coexistence, funded by the NRF grant by the Korean Government (MEST) (NRF-M1AXA003-2011-0031648).
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Lee, DY., Sull, S. & Kim, CS. Progressive 3D mesh compression using MOG-based Bayesian entropy coding and gradual prediction. Vis Comput 30, 1077–1091 (2014). https://doi.org/10.1007/s00371-013-0779-3
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DOI: https://doi.org/10.1007/s00371-013-0779-3