The directional reflection characteristics of fabrics with various texture structures is an important and challenging topic in computer graphics and visual simulation. In the present study, the Bidirectional Reflectance Distribution Function (BRDF) of four different textured fabrics is measured via a self-designed Scatterometry to analyze the effect of surface textures and illuminated wavelengths. Furthermore, a fast and simple BRDF model is provided, and optimal model parameters for fabric BRDF calculation were obtained via a genetic algorithm. The results indicate that the reflected distribution of fabrics is dominated by diffuse reflection and is modulated by surface textures and irradiated wavelengths.

中文翻译：

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可见光和近红外波段中不同纹理织物的BRDF特性。

具有各种纹理结构的织物的定向反射特性是计算机图形学和视觉模拟中一个重要且具有挑战性的主题。在本研究中，通过自行设计的散射法测量了四种不同纹理织物的双向反射分布函数（BRDF），以分析表面纹理和照明波长的影响。此外，提供了一个快速简单的BRDF模型，并通过遗传算法获得了用于织物BRDF计算的最佳模型参数。结果表明，织物的反射分布以漫反射为主，并且受表面纹理和照射波长的影响。