2011年
Dynamic Compression of Curve-Based Point Cloud
ADVANCES IN IMAGE AND VIDEO TECHNOLOGY, PT II
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- 巻
- 7088
- 号
- 開始ページ
- 323
- 終了ページ
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- 記述言語
- 英語
- 掲載種別
- 研究論文(国際会議プロシーディングス)
- 出版者・発行元
- SPRINGER-VERLAG BERLIN
With the increasing demands for highly detailed 3D data, dynamic scanning systems are capable of producing 3D+t (a.k.a. 4D) spatio-temporal models with millions of points recently. As a consequence, effective 4D geometry compression schemes are required to face the need to store/transmit the huge amount of data, in addition to classical static 3D data. In this paper, we propose a 4D spatio-temporal point cloud encoder via a curve-based representation of the point cloud, particularly well-suited for dynamic structured-light-based scanning systems, wherein a grid pattern is projected onto the surface object. The object surface is then naturally sampled in a series of curves, due to the grid pattern. This motivates our choice to leverage a curve-based representation to remove the spatial and temporal correlation of the sampled point along the scanning directions through a competitive-based predictive encoder that includes different spatio-ternporal prediction modes. Experimental results show the significant gain obtained with the proposed method.
- リンク情報
- ID情報
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- ISSN : 0302-9743
- Web of Science ID : WOS:000308515500029