摘要
虚拟场景的绘制算法是计算机可视化的重要内容,传统的基于几何模型的绘制和基于图像的绘制不能很好地满足需求,因此考虑以不同模型为基元的绘制算法。详细介绍了点绘制方法、面绘制方法和体绘制方法,使用双目相机获取深度图像,并选用了代表性的算法进行实验,点绘制算法中质量和速率兼顾的自适应绘制算法,面绘制中简单易实现的MC算法,体绘制中的典型算法光线投射法。得出各自算法的性能进行分析比较,自适应绘制算法适合于复杂的模型,MC算法的绘制效率较高,光线投射法的速度较高。最后提出了虚拟场景的绘制算法的发展趋势。
The algorithm of virtual scene rendering is an important part of computer visualization, traditional model- based rendering and image-based rendering can not meet the demand, so propose different models for the rendering algorithm. Introduce the point rendering, surface rendering, volume rendering, using a binocular camera to obtain deep images, then select representative algorithms to experiment, adaptive rendering algorithm in both quality and speed of the point rendering algorithm, the simple realization MC algorithm of the surface rendering, the typical volume rendering method of the light projection. Analyze and compare each algorithm, adaptive rendering algorithm for complex models, MC rendering algorithm has higher efficient, light projection algorithm has higher speed. Finally, propose the trend of virtual scene rendering.
出处
《电子测试》
2011年第2期17-20,46,共5页
Electronic Test
基金
山西省自然科学基金(2010011023-1)资助
关键词
虚拟场景
绘制算法
点绘制
面绘制
体绘制
virtual scene
rendering algorithm
point rendering
surface rendering
volume rendering
