Algorithms for Efficient Generation of Ray-traced Animation Frames

高效生成光线追踪动画帧的算法

• 批准号: 9223803
• 负责人: Larry Hodges
• 金额: $ 4.8万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-08-15 至 1995-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9223803&HistoricalAwards=false
• 关键词: Algorithms; Efficient; Generation; Ray; traced

9223803 Hodges An animation sequence may be thought of as a series of images (frames) sampled from a continuously changing scene. The temporal sampling rate is high, 24-30 frames per second, so that any particular frame is usually very similar to the frame that preceded and succeeded it. This similarity is known as frame-to- frame or temporal coherence. The majority of computer graphics images are generated as part of a sequence of animation frames. The usual approach for producing these images, however, is to render each frame in an animation as if it were a single, isolated image. The purpose of this research is to develop faster algorithms for the generation of animated sequences of ray-traced images by exploiting temporal coherence. The idea here is that the information gained when ray-tracing a particular frame in a sequence may be used to speed up the ray-tracing of other nearby frames. the goal of this project is the development of efficient algorithms to infer the pixel values of one or more animation frames from a ray-traced reference frame. The reference frame may have been fully ray-traced or contain a combination of ray- traced and inferred pixel values. ***

9223803 Hodges 动画序列可以被认为是从连续变化的场景中采样的一系列图像（帧）。 时间采样率很高，为每秒 24-30 帧，因此任何特定帧通常与其之前和之后的帧非常相似。 这种相似性被称为帧到帧或时间一致性。 大多数计算机图形图像都是作为动画帧序列的一部分生成的。 然而，生成这些图像的常用方法是将动画中的每一帧渲染为单个独立图像。 这项研究的目的是开发更快的算法，通过利用时间相干性来生成光线追踪图像的动画序列。 这里的想法是，在对序列中的特定帧进行光线追踪时获得的信息可用于加速其他附近帧的光线追踪。 该项目的目标是开发有效的算法，从光线追踪参考帧推断一个或多个动画帧的像素值。 参考帧可能已被完全光线追踪或包含光线追踪和推断像素值的组合。 ***