Woodcock Tracking Based Fast Monte Carlo Direct Volume Rendering Method

Authors

Shoudong Zhou, Anhui Technical College of Industray and Economy, Hefei 230051, China;

Abstract

Abstract: Woodcock-Tracking sampling algorithm is a frequently applied ray sampling method, which plays an important role in optimizing the Monte Carlo direct volume rendering method. However, without considering the volume of color's variation in different region by using this method, the situation that region with great color's variation may only get a few samples was caused and the authenticity of volume data would be affected. Entropy to indicate color's variation in volume was introduced, an entropy based adaptive Woodcock-Tracking method was developed, which could sample more points in region with higher color's variation. To overcome biases caused by adaptive Woodcock-Tracking method, weighted color evaluation method was used, so that the final render result image was unbiased. Through the contrast test on the three models of head, backpack and skeleton, the result demonstrates the presented method is superior to the current method in the aspect of improving the rendering quality obviously.

Recommended Citation

Zhou, Shoudong (2020) "Woodcock Tracking Based Fast Monte Carlo Direct Volume Rendering Method," Journal of System Simulation: Vol. 29: Iss. 5, Article 26.
DOI: 10.16182/j.issn1004731x.joss.201705026
Available at: https://dc-china-simulation.researchcommons.org/journal/vol29/iss5/26

First Page

1125

Revised Date

2016-08-09

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201705026

Last Page

1131

CLC

TP391.41

Recommended Citation

Zhou Shoudong. Woodcock Tracking Based Fast Monte Carlo Direct Volume Rendering Method[J]. Journal of System Simulation, 2017, 29(5): 1125-1131.

DOI

10.16182/j.issn1004731x.joss.201705026