Surface light fields for 3D photography

Daniel N. Wood, D. I. Azuma, Kenneth R. Aldinger, B. Curless, T. Duchamp, D. Salesin, W. Stuetzle
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引用次数: 542

Abstract

A surface light field is a function that assigns a color to each ray originating on a surface. Surface light fields are well suited to constructing virtual images of shiny objects under complex lighting conditions. This paper presents a framework for construction, compression, interactive rendering, and rudimentary editing of surface light fields of real objects. Generalization of vector quantization and principal component analysis are used to construct a compressed representation of an object's surface light field from photographs and range scans. A new rendering algorithm achieves interactive rendering of images from the compressed representation, incorporating view-dependent geometric level-of-detail control. The surface light field representation can also be directly edited to yield plausible surface light fields for small changes in surface geometry and reflectance properties.
用于3D摄影的表面光场
表面光场是一个函数,它赋予每一条从表面发出的光线一种颜色。表面光场非常适合在复杂光照条件下构造有光泽物体的虚拟图像。本文提出了一个构建、压缩、交互渲染和基本编辑真实物体表面光场的框架。利用矢量量化的推广和主成分分析,从照片和距离扫描中构造物体表面光场的压缩表示。一种新的绘制算法从压缩表示中实现图像的交互式绘制,并结合了与视图相关的几何细节水平控制。表面光场表示也可以直接编辑,以产生表面几何形状和反射率特性微小变化的貌似合理的表面光场。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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