Texture histograms as a function of irradiation and viewing direction
Texture histograms as a function of irradiation and viewing direction
复制标题
DOI：
10.1023/a:1008018015948
复制
发表时间：
1999-04
影响因子：
19.5
通讯作者：
B. Ginneken;J. Koenderink;Kristin J. Dana
中科院分区：
文献类型：
--
作者：
B. Ginneken;J. Koenderink;Kristin J. Dana
在我们的日常环境中遇到的材料的纹理外观取决于两个方向，照射和观察方向。我们调查的双向灰度直方图的一大套材料，从纹理数据库中获得。我们区分重要的类别，与各种影响的物理机制，并列出影响双向直方图的材料属性。我们使用一个模型，粗糙的表面局部漫反射和/或镜面反射特性，一类材料，通常发生，生成双向直方图，并获得与实验数据的密切一致。我们讨论了双向纹理函数和直方图的几个应用。特别是，我们提出了一种新的方法来纹理映射的基础上双向直方图。对于三维纹理，该技术是上级标准的二维纹理映射几乎没有任何额外的计算成本或内存需求。
The textural appearance of materials encountered in our daily environment depends on two directions, the irradiation and viewing direction. We investigate the bidirectional grey level histograms of a large set of materials, obtained from a texture database. We distinguish important categories, relate the various effects to physical mechanisms, and list material attributes that influence the bidirectional histograms. We use a model for rough surfaces with locally diffuse and/or specular reflection properties, a class of materials that commonly occurs, to generate bidirectional histograms and obtain close agreement with experimental data. We discuss several applications of bidirectional texture functions and histograms. In particular, we present a new approach to texture mapping based on bidirectional histograms. For 3D texture, this technique is superior to standard 2D texture mapping at hardly any extra computational cost or memory requirements.