J4 ›› 2009, Vol. 47 ›› Issue (05): 1020-1026.

• 计算机科学 • 上一篇    下一篇

 基于点模型的Blending绘制和消隐方法

姜艳1, 李谊2, 于波3, 权勇2, 姜雨3, 于阔4, 李文辉2   

  1. 1. 长春师范学院 计算机科学与技术学院, 长春 130032; 2. 吉林大学 计算机科学与技术学院, 长春 130012;3. 清华同方股份有限公司, 北京 100088; 4. 四川省烟草专卖局, 成都 610031
  • 收稿日期:2008-10-26 出版日期:2009-09-26 发布日期:2009-11-03
  • 通讯作者: 李文辉 E-mail:liwh@jlu.edu.cn.

Pointbased Blending Rendering andHidden Surface Removal Method

JIANG Yan1, LI Yi2, YU Bo3, QUAN Yong2, JIANG Yu3, YU Kuo4, LI Wenhui2   

  1. 1. College of Computer Science and Technology, Changchun Normal University, Changchun 130032, China; 2. College of Computer Science and Technology, Jilin University, Changchun 130012, China;3. Tsinghua Tongfang Co. Ltd., Beijing 100088, China;4. Sichuan Tobacco Monopoly Administration, Chengdu 610031, China
  • Received:2008-10-26 Online:2009-09-26 Published:2009-11-03
  • Contact: LI Wenhui E-mail:liwh@jlu.edu.cn.

摘要:

采用点八叉树数据结构并设计颜色融合数组, 解决了大型点云数据在绘制速度和质量方面的难点. 点八叉树数据结构可在耗时大的绘制过程执行前预先进行不可见点的剔除, 便于根据视点远近选择不同的细节层次和绘制策略, 以便控制绘制的复杂度与速度. 由插值误差δ控制的颜色融合数组在提高绘制质量的同时还实现了消隐.

关键词: 基于点的绘制; 点八叉树; 颜色融合; 消隐

Abstract:

Pointoctree data structure and Blending array are desired to solve the difficulties of rendering speed and quality of a large scale pointbased datum. Pointoctree data structure can filter invisible points before the timeconsuming process of rendering and can help to select different detail levels and rendering mode according to the view point position to control the complexity and speed of rendering. A Blending array which is controlled by the interpolation error δ is desired to improve the rendering quality and remove the hidden surface.

Key words: pointbasedrendering (PBR), pointoctree, Blending; hidden surface removal (HSR)

中图分类号: 

  • TP391.41