tailieunhanh - Báo cáo hóa học: " Research Article Robust and Scalable Transmission of Arbitrary 3D Models over Wireless Networks"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Robust and Scalable Transmission of Arbitrary 3D Models over Wireless Networks | Hindawi Publishing Corporation EURASIP Journal on Image and Video Processing Volume 2008 Article ID 890482 14 pages doi 2008 890482 Research Article Robust and Scalable Transmission of Arbitrary 3D Models over Wireless Networks Irene Cheng 1 2 LihangYing 2 Kostas Daniilidis 1 and Anup Basu2 1 Department of Computer and Information Science University of Pennsylvania Philadelphia PA 19104-6389 USA 2 Department of Computing Science University of Alberta Edmonton AB Canada T6G 2E8 Correspondence should be addressed to Irene Cheng chenglin@ Received 26 February 2008 Revised 15 July 2008 Accepted 2 September 2008 Recommended by Peter Eisert We describe transmission of 3D objects represented by texture and mesh over unreliable networks extending our earlier work for regular mesh structure to arbitrary meshes and considering linear versus cubic interpolation. Our approach to arbitrary meshes considers stripification of the mesh and distributing nearby vertices into different packets combined with a strategy that does not need texture or mesh packets to be retransmitted. Only the valence connectivity packets need to be retransmitted however storage of valence information requires only 10 space compared to vertices and even less compared to photorealistic texture. Thus less than 5 of the packets may need to be retransmitted in the worst case to allow our algorithm to successfully reconstruct an acceptable object under severe packet loss. Even though packet loss during transmission has received limited research attention in the past this topic is important for improving quality under lossy conditions created by shadowing and interference. Results showing the implementation of the proposed approach using linear cubic and Laplacian interpolation are described and the mesh reconstruction strategy is compared with other methods. Copyright 2008 Irene Cheng et al. This is an open access article distributed under the Creative Commons Attribution License which .