使用Light Field Rendering实现森林的实时渲染及光照算法
Real-time Rendering of Forests Using Light Field Rendering and Lighting Algorithm
作者：方震(四川大学计算机学院视觉合成图形图像技术国防重点实验室)；杨红雨(四川大学计算机学院视觉合成图形图像技术国防重点实验室)；林毅(四川大学计算机学院视觉合成图形图像技术国防重点实验室)
Author：FANG Zhen(National Key Laboratory of Fundamental Science on Synthetic Vision, College of Computer Science, Sichuan University)；YANG Hong-Yu(National Key Laboratory of Fundamental Science on Synthetic Vision, College of Computer Science, Sichuan University)；LIN Yi(National Key Laboratory of Fundamental Science on Synthetic Vision, College of Computer Science, Sichuan University)
收稿日期：2015-12-29 年卷（期）页码：2016,53(6):1241-1246
期刊名称：四川大学学报: 自然科学版
Journal Name：Journal of Sichuan University (Natural Science Edition)
关键字：森林渲染及光照；基于图像的渲染方法；光流场；迭代投射算法
Key words：forest rendering and lighting; Image-based rendering; Light Field Rendering; iterative-casting al- gorithm
基金项目：国家高技术研究发展规划“863”项目 2015AA016404-3 基于物理模型的复杂场景动态演化技术（子课题 飞行模拟与大气现象的动态演变技术 2015AA016404-3）；中央高校基本科研业务费资助 2015SCU1102 通用航空新概念综合导航技术及设备研究.,国家高技术研究发展计划
中文摘要
森林的实时渲染及光照是视景系统中的一个难题。基于图像的渲染方法（IBR）由于渲染速度与模型复杂度无关，被广泛应用于场景重建。基于光流场（Light Field Rendering）的IBR技术，提出一种迭代投射算法来进行外形重建，实现了具有实时光影特征的森林效果。实验表明该算法结合了传统迭代、投射算法各自的优点，在质量和效率方面取得了平衡。
英文摘要
Real-time rendering and lighting of forests is a difficult problem in visual system. Due to uncorrelated of scene complexity, the Image-based rendering techniques have been widely used for the scene reconstruction. An iterative-casting algorithm based on Light Field Rendering (IBR) is put forward to solve the reconstruction pro- blem, and then realizes a real-time forests rendering with lighting effects. The experimental results show that this algorithm has combined the advantages of iterative and casting algorithms, gets a balance between efficiency and quality.
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