Kaleidoscope configurations for reflectance measurement
Kaleidoscope configurations for reflectance measurement
复制标题
用于反射率测量的万花筒配置
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
J. Radloff
中科院分区：
文献类型：
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作者：
S. Bangay;J. Radloff
对对称锥形万花筒的不同配置进行了仿真，以评估其在测量brdf和btf方面的优点。导出了最佳万花筒布局与硬件限制和所需反射函数分辨率等因素之间的关系。通过仿真研究了改变这些自变量对反射率函数测量的影响。这些实验突出了影响使用万花筒测量btf的问题，并提出了允许以常规参数间隔采样的配置。研究人员还探索了许多其他的万花筒架构，这些架构提供了将采样方向范围扩大一倍的潜在好处，并允许自适应控制采样间隔。
Simulations of different configurations of the symmetrical tapered kaleidoscope are performed to assess their merits for measurement of BRDFs and BTFs. The relationship between optimal kaleidoscope layout, and factors such as hardware restrictions and the resolution of the required reflectance function, is derived. The effect on the measurement of the reflectance function of changing these independent variables is examined through the simulation. These experiments highlight issues affecting the measurement of BTFs using kaleidoscopes, and suggest configurations that allow sampling at regular parameter intervals. A number of other kaleidoscope architectures are explored, which offer the benefits of potentially doubling the range of directions that can be sampled, and allowing adaptive control of sample intervals.