S-Octree: An Extension to Spherical CoordinatesS-Octree: An Extension to Spherical Coordinates
- Other Titles
- S-Octree: An Extension to Spherical Coordinates
- Authors
- 박태정; 이성호; 김창헌
- Issue Date
- 2010
- Publisher
- 한국멀티미디어학회
- Keywords
- adaptive grid; spherical coordinate; progressive geometry compression; octree; adaptive grid; spherical coordinate; progressive geometry compression; octree
- Citation
- 멀티미디어학회논문지, v.13, no.12, pp.1748 - 1759
- Indexed
- KCI
- Journal Title
- 멀티미디어학회논문지
- Volume
- 13
- Number
- 12
- Start Page
- 1748
- End Page
- 1759
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/117930
- ISSN
- 1229-7771
- Abstract
- We extend the octree subdivision process from Cartesian coordinates to spherical coordinates to develop more efficient space-partitioning structure for surface models. As an application of the proposed structure, we apply the octree subdivision in spherical coordinates (“S-Octree”) to geometry compression in progressive mesh coding. Most previous researches on geometry-driven progressive mesh compression are devoted to improve predictability of geometry information. Unlike this, we focus on the efficient information storage for the space-partitioning structure. By eliminating void space at initial stage and aligning the R axis for the important components in geometry information, the S-Octree improves the efficiency in geometry information coding. Several meshes are tested in the progressive mesh coding based on the S-Octree and the results for performance parameters are presented.
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Collections - Graduate School > Department of Computer Science and Engineering > 1. Journal Articles
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