Reflectance and texture of real-world surfaces
Reflectance and texture of real-world surfaces
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DOI：
10.1145/300776.300778
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发表时间：
1999-01-01
影响因子：
6.2
通讯作者：
Koenderink, JJ
中科院分区：
文献类型：
--
作者：
Dana, KJ;Van Ginneken, B;Koenderink, JJ
在这项工作中，我们调查的视觉外观的真实世界的表面和依赖的外观上的几何成像条件。我们讨论了一种新的纹理表示称为BTF（双向纹理函数），它捕捉纹理的变化与照明和观看方向。我们提出了一个BTF数据库的图像纹理从60多个不同的样本，每个观察超过200个不同的组合的观看和照明方向。我们描述了收集数据库的方法以及该数据库对计算机图形学的重要性和独特性。与BTF相关的量是熟悉的BRDF（双向反射分布函数）。BTF数据库中涉及的测量方法有助于BRDF的同时测量。因此，我们还提出了一个BRDF数据库与反射率测量超过60个不同的样本，每个观察超过200个不同的组合的观看和照明方向。这两个独特的数据库都是公开的，对计算机图形学有重要的影响。
In this work, we investigate the visual appearance of real-world surfaces and the dependence of appearance on the geometry of imaging conditions. We discuss a new texture representation called the BTF (bidirectional texture function) which captures the variation in texture with illumination and viewing direction. We present a BTF database with image textures from over 60 different samples, each observed with over 200 different combinations of viewing and illumination directions. We describe the methods involved in collecting the database as well as the importance and uniqueness of this database for computer graphics. A related quantity to the BTF is the familiar BRDF (bidirectional reflectance distribution function). The measurement methods involved in the BTF database are conducive to a simultaneous measurement of the BRDF. Accordingly, we also present a BRDF database with reflectance measurements for over 60 different samples, each observed with over 200 different combinations of viewing and illumination directions. Both of these unique databases are publicly available and have important implications for computer graphics.