Development of goniophotometric imaging system for recording reflectance spectra of 3D objects
Development of goniophotometric imaging system for recording reflectance spectra of 3D objects
复制标题
开发用于记录 3D 物体反射光谱的测角光度成像系统
DOI：
10.1117/12.453008
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发表时间：
2001
影响因子：
2.4
通讯作者：
Y. Miyake
中科院分区：
文献类型：
--
作者：
K. Tonsho;Yoshinori Akao;N. Tsumura;Y. Miyake
近年来，需要开发一种用于博物馆和画廊中的档案的3D捕获系统。在三维物体的可视化中，准确地再现颜色和光泽度是非常重要的。我们的最终目标是在博物馆和互联网或通过万维网虚拟博物馆建立数字档案系统。为了实现这一目标，我们利用高精度多光谱相机和三维数字化仪研制了测角光度成像系统。本文介绍了一种记录三维物体的角度光度成像方法。5-在7个不同的光源角度下拍摄物体的波段图像。然后，在双色反射模型和Phong模型的基础上对5波段图像序列进行分析，以提取物体的角度光度特性。利用OpenGL的三维形状和角度光度特性，绘制了具有任意光谱辐射分布、照明角度和视点的光源下的三维物体图像。
In recent years, it is required to develop a system for 3D capture of archives in museums and galleries. In visualizing of 3D object, it is important to reproduce both color and glossiness accurately. Our final goal is to construct digital archival systems in museum and internet or virtual museum via World Wide Web. To achieve our goal, we have developed gonio-photometric imaging system by using high accurate multi-spectral camera and 3D digitizer. In this paper, gonio-photometric imaging method is introduced for recording 3D object. 5-bands images of the object are taken under 7 different illuminants angles. The 5-band image sequences are then analyzed on the basis of both dichromatic reflection model and Phong model to extract gonio-photometric property of the object. The images of the 3D object under illuminants with arbitrary spectral radiant distribution, illuminating angles, and visual points are rendered by using OpenGL with the 3D shape and gonio-photometric property.