| 基于点模型的Blending绘制和消隐方法 |
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| 引用本文： | 姜艳,李谊,于波,权勇,姜雨,于阔,李文辉. 基于点模型的Blending绘制和消隐方法[J]. 吉林大学学报(理学版), 2009, 47(5): 1020-1026 |
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| 作者姓名： | 姜艳 李谊 于波 权勇 姜雨 于阔 李文辉 |
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| 作者单位： | 长春师范学院,计算机科学与技术学院,长春,130032;吉林大学,计算机科学与技术学院,长春,130012;清华同方股份有限公司,北京,100088;四川省烟草专卖局,成都,610031 |
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| 基金项目： | 国家自然科学基金,教育部博士学科点科研项目基金,吉林省科技发展计划项目基金 |
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| 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.
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| 关 键 词： | 基于点的绘制 点八叉树 颜色融合 消隐 |
| 收稿时间： | 2008-10-26 |
Point-based Blending Rendering and Hidden Surface Removal Method |
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| JIANG Yan,LI Yi,YU Bo,QUAN Yong,JIANG Yu,YU Kuo,LI Wen-hui. Point-based Blending Rendering and Hidden Surface Removal Method[J]. Journal of Jilin University: Sci Ed, 2009, 47(5): 1020-1026 |
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| Authors: | JIANG Yan LI Yi YU Bo QUAN Yong JIANG Yu YU Kuo LI Wen-hui |
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| Affiliation: | 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 |
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| 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 theinterpolation error δ is desired to improve the rendering quality and remove the hidden surface. |
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| Keywords: | point based rendering (PBR),point octree,Blending hidden surface removal (HSR), |
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