A Real-time Rendering Method Based on Object Surface Reflection Properties and Multi-spectral Reflection Model
A Real-time Rendering Method Based on Object Surface Reflection Properties and Multi-spectral Reflection Model
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一种基于物体表面反射特性和多光谱反射模型的实时渲染方法
DOI：
10.5057/jjske.j11-090521-1
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
Jae
中科院分区：
文献类型：
--
作者：
N. Tanaka;K. Mochizuki;Jae
提出了一种基于物体表面特性和多光谱反射模型的实时绘制方法。RGB图像依赖于设备，仅在固定的照明和观看条件下有效。另一方面，物体表面的光谱反射信息比RGB信息更有用，因为我们可以在任意照明和观看条件下创建物体的真实图像。首先，为了精确描述物体表面的反射率，本文建立了基于Nayer模型、Torrance-Sparrow模型、Fresnel模型和多光谱信息的三维反射模型。其次，提出了一种环境光源分布下物体的绘制算法。此外，我们还将反射模型实现到图形处理器（GPU）中，以提高渲染性能。最后，我们使用多光谱反射模型绘制了一些物体。我们的方法的整体可行性确认的基础上，通过使用估计的参数创建的计算机图形图像。
The present paper proposes a real-time rendering method based on object surface properties and multi-spectral reflection model. An RGB image is device-dependent and valid for only the fixed conditions of illumination and viewing. On the other hand, spectral reflectance information of an object surface is more useful than RGB information because we can create realistic images of the object under arbitrary illumination and viewing conditions. Firstly, we develop a 3D reflection model based on Nayer model, Torrance-Sparrow model, Fresnel model and multi-spectral information for precise description of object surface reflectance. Secondly, we develop a rendering algorithm of the object under ambient light source distribution. And also, we implement the reflection model to Graphics Processing Unit(GPU) for improving rendering performance. Finally, we render some objects by using multi-spectral reflection model. The overall feasibility of our method is confirmed based on computer graphics images created by using the estimated parameters.