Line-Drawing Videos for Volume Visualization
Wei Feng · Chinese Journal of Computers · 2006
Line drawings provide a fast and succinct approach for volume visualization. However, due to its succinct representation, it is necessary to produce many line drawing images from multiple viewpoints and continually so that viewers can comprehensively understand the contents in volume data. To improve the efficiency on selecting suitable viewpoints for line drawing, this paper presents line-drawing videos for volume visualization. On the one hand, by saliency measurement on volume data and viewpoints, videos are produced by selecting the viewpoints that can render images to show contents more efficiently. At the same time, with the viewpoints changing smoothly and continually, viewers can more efficiently obtain the comprehensive impression of the interesting contents. In comparison with the advanced visualization method by interactive line drawing, the new method can improve the rendering speed and the ability for images to show contents, and so use fewer images to achieve more comprehensive understanding of contents. Of course, the method can improve the efficiency of interactive line drawings for viewers to focus on studying their interested contents, because the results of saliency measurement on volume data and viewpoints provide enough information for viewers to select suitable viewpoints. This is sure to promote volume visualization considerably.