Efficient ray tracing of volume data
ACM Transactions on Graphics (TOG)
Computer graphics: principles and practice (2nd ed.)
Computer graphics: principles and practice (2nd ed.)
Footprint evaluation for volume rendering
SIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
Hierarchical splatting: a progressive refinement algorithm for volume rendering
Proceedings of the 18th annual conference on Computer graphics and interactive techniques
A coherent projection approach for direct volume rendering
Proceedings of the 18th annual conference on Computer graphics and interactive techniques
Segmented ray casting for data parallel volume rendering
PRS '93 Proceedings of the 1993 symposium on Parallel rendering
A data distributed, parallel algorithm for ray-traced volume rendering
PRS '93 Proceedings of the 1993 symposium on Parallel rendering
Pixel merging for object-parallel rendering: a distributed snooping algorithm
PRS '93 Proceedings of the 1993 symposium on Parallel rendering
Permutation warping for data parallel volume rendering
PRS '93 Proceedings of the 1993 symposium on Parallel rendering
Fast volume rendering using a shear-warp factorization of the viewing transformation
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
Real-time volume rendering on shared memory multiprocessors using the shear-warp factorization
PRS '95 Proceedings of the IEEE symposium on Parallel rendering
Fast volume rendering using a shear-warp factorization of the viewing transformation
Fast volume rendering using a shear-warp factorization of the viewing transformation
PRS '97 Proceedings of the IEEE symposium on Parallel rendering
Extensions to permutation warping for parallel volume rendering
Parallel Computing - Special double issue on biomedical applications
V-buffer: visible volume rendering
SIGGRAPH '88 Proceedings of the 15th annual conference on Computer graphics and interactive techniques
SIGGRAPH '88 Proceedings of the 15th annual conference on Computer graphics and interactive techniques
Volume Visualization (Tutorial)
Volume Visualization (Tutorial)
Image Composition Schemes for Sort-Last Polygon Rendering on 2D Mesh Multicomputers
IEEE Transactions on Visualization and Computer Graphics
Analysis of a Parallel Volume Rendering System Based on the Shear-Warp Factorization
IEEE Transactions on Visualization and Computer Graphics
Parallel Volume Rendering Using Binary-Swap Compositing
IEEE Computer Graphics and Applications
Direct Visualization of Volume Data
IEEE Computer Graphics and Applications
SIGGRAPH '84 Proceedings of the 11th annual conference on Computer graphics and interactive techniques
EG PGV'09 Proceedings of the 9th Eurographics conference on Parallel Graphics and Visualization
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Data compression is a well-known method to improve the image composition time of parallel volume rendering on distributed memory multicomputers. In this paper, we propose an efficient data compression scheme, the template run-length encoding (TRLE) scheme, for image composition. Given an image with 2n脳2n pixels, in the TRLE scheme, the image is treated as n脳n blocks and each block has 2脳2 pixels. Since a pixel can be a blank or non-blank pixel, there 16 templates in a block. To compress an image, the TRLE scheme encodes an image block by block similar to the run-length encoding scheme. However, the TRLE scheme can filter out or use small space to encode blocks whose four pixels are blank pixels, that is, the TRLE scheme can encode a partial image according to the shape of non-blank pixels. To evaluate the performance of the TRLE scheme, we compare the proposed scheme with the BR, the RLE, and the BRLC schemes. Since a data compression scheme needs to cooperate with some data communication schemes, in the implementation, the binary-swap, the parallel-pipelined, and the rotate-tiling data communication schemes are used. By combining the four data compression schemes with the three data communication schemes, we have twelve image composition methods. These twelve methods are implemented on an IBM SP2 parallel machine. Four volume datasets are used as test samples. The data computation time and the data communication time are measured. The experimental results show that the TRLE data compression scheme with the rotate-tiling data communication scheme outperforms other eleven image composition methods for all test samples.