Streaming 3D meshes using spectral geometry images
MM '09 Proceedings of the 17th ACM international conference on Multimedia
Optimal packet loss protection of progressively compressed 3-D meshes
IEEE Transactions on Multimedia
MPEG-4-based adaptive remote rendering for video games
Proceedings of the 16th International Conference on 3D Web Technology
Wavelet scalable video coding with minimal average temporal distance for motion estimation
ICAT'06 Proceedings of the 16th international conference on Advances in Artificial Reality and Tele-Existence
On efficient 3D data dissemination
Wireless Networks
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This work presents a joint source and channel coding method for transmission of progressively compressed three-dimensional (3-D) models where the bit budget is allocated optimally. The proposed system uses the Compressed Progressive Mesh (CPM) algorithm to produce a hierarchical bitstream representing different levels of detail (LODs). In addition to optimizing the transmitted bitstream with respect to the channel characteristics, we also choose the optimum combination of quantization and tessellation to maximize the expected decoded model quality. That is, given a 3-D mesh, a total bit budget (B) and a channel packet-loss rate (PLR), we determine the optimum combination of: 1) the geometry coordinates quantizer step size (l-bit); 2) the number of transmitted batches (L); 3) the total number of channel coding bits (C); and 4) the distribution of these channel coding bits among the transmitted levels (CL). Experimental results show that, with our unequal error protection approach that uses the proposed bit-allocation algorithm, the decoded model quality degrades more gracefully (compared to either no error protection or equal error protection methods) as the packet-loss rate increases.