期刊文献+

NPR技术在体绘制中的应用研究

Application of NPR techniques in volume rendering
下载PDF
导出
摘要 本文在分析了volume illustration技术中的边界增强基础上,提出了基于变化增强量机制的改进算法,即加入距离因子的边界增强,这种方法会进一步增加体绘制的灵活性。另外,以现有的边界检测技术为基础,提出了添加深度感信息的方法和基于积分融合方式的边界检测方法,使用该融合方式可以通过Z轴超采样改善图像质量。 Based on the analysis of boundary enhancement approaches in volume illustration, improved method with changing enhancement parameters is proposed, namely distance weight boundary enhancement. It is able to increase flexibility of volume rendering further. In addition, an approach of adding depth cues to contour detection is proposed, and an algorithm based on integration composition mode is introduced. With this composition mode, result image quality can be improved through Z-axis super sampling.
出处 《电子测量技术》 2007年第7期31-33,41,共4页 Electronic Measurement Technology
关键词 NPR 体绘制 边界增强 边界检测 NPR volume rendering boundary enhancement contour detection
  • 相关文献

参考文献10

  • 1GORDON K, ROSS W, TOLQA T, et al. Curvaturebased transfer functions for direct volume rendering. methods and applications[C]. Proceedings of the IEEE Visualization Conference, 2003. 513-520.
  • 2MARTIN D. , TORRES J C. Rendering silhouettes with virtual lights [J]. Computer Graphics Forum, 2001,20(4) : 271-282.
  • 3GUIRE M M, HUGHES J F. Hardware-determined feature edges [J]. Proceedings NPAR 2004-3rd Intemational Symposium on Non-Photorealistic Animation and Rendering, 2004 : 35-44.
  • 4EBERT D, Rheinqans P. Volume illustration: nonphotorealistic rendering of volume models [C]. Proceedings of the IEEE Visualization Conference, 2000:195-202,556.
  • 5CSEBFALVI B, Mroz L. Hauser H, etal. Fast visualization of object contours by non-photorealistic volume rendering [J]. Computer Graphics Forum, 2001.20, (3) : 452-460.
  • 6NAGY Z, KLEIN R. High-quality silhouette illustration for texture-based volume rendering [J]. Proceedings of Journal of WSCG, 12 (2) :301-308.
  • 7HAUSER H, MROZ L, BISCHI G I, etal. Two-level volume rendering [ J ]. IEEE Transactions on Visualization and Computer Graphics, 2001, 7 (3).
  • 8ZHOU J L, MANFRED H, KLAUS D T. Focal region-guided feature-based volume rendering[C]. 1st International Symposium on 3D Data Processing Visualization and Transmission, Padova, Italy, June 19-21, 2002:87.
  • 9LEVOYM. Efficient ray tracing of volume data[J]. ACM Transactions on Graphics, 1990,9 (3). 245-261.
  • 10JAME F, VAN D A, STEVEN F S, etal. Computer graphics., principles and practice[M]. 2nd Edition us: Addison Wesley, 1996.

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部