Enhanced Depth Perception Grid-projection Algorithm for Direct Volume Rendering

Feng Xiao-meng; Wu Ling-da; Yu Rong-huan; Yang Chao

doi:10.11999/JEIT150303

Volume 37 Issue 11

Nov. 2015

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Article Navigation > Journal of Electronics & Information Technology > 2015 > 37(11): 2548-2554

Feng Xiao-meng, Wu Ling-da, Yu Rong-huan, Yang Chao. Enhanced Depth Perception Grid-projection Algorithm for Direct Volume Rendering[J]. Journal of Electronics & Information Technology, 2015, 37(11): 2548-2554. doi: 10.11999/JEIT150303

Citation:

Feng Xiao-meng, Wu Ling-da, Yu Rong-huan, Yang Chao. Enhanced Depth Perception Grid-projection Algorithm for Direct Volume Rendering[J]. Journal of Electronics & Information Technology, 2015, 37(11): 2548-2554. doi: 10.11999/JEIT150303

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Enhanced Depth Perception Grid-projection Algorithm for Direct Volume Rendering

doi: 10.11999/JEIT150303

1.
(Department of Graduate Management, Equipment Academy, Beijing 101416, China)
2.
(Science and Technology on Complex Electronic System Simulation Laboratory, Equipment Academy, Beijing 101416, China)

Funds:

The National Natural Science Foundation of China (61202129)

Received Date: 2015-03-13
Rev Recd Date: 2015-06-29
Publish Date: 2015-11-19

Abstract

Abstract

The depth information in volume data is lost in the image rendered by volume rendering technique. The existing methods of depth perception enhancement only enhance some structures in the volume data at the cost of other structures details, and they directly edit the volume rendering algorithm. For ray-casting algorithm, a method of depth perception enhancement is presented, and it does not directly edit the algorithm. Specifically, an inerratic grid is projected to the surface of volume data, and then the grid changing along surface is rendered in the final image. Users can apperceive the depth information of surface from the changed grid. Meanwhil, two methods are used to enhance the depth information of the grid projection lines, one is coloring the grid lines based on the depth, and the other one is adding accessorial lines to join the grid lines on two surfaces with different depths. When implemented using compute unified device architecture, the image is rendered in real-time under user interaction. The effect of depth perception enhancement in the final image is obvious especially when the volume data contains some disjunct or intersectant objects.
- Volume rendering,
- Depth perception,
- Grid-projection,
- Parallel implementation,
- Compute unified device architecture

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References(22)

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