用单通道实现比色成像，可明显地降低物体表面发射率及其它因素对测温精度的影响。
Based on single channel double colour principle, it overcomes the interference of emissivity of object surface and other factors on temperature measuring precision.
利用双向反射分布函数测量系统，通过对物体表面双向反射分布的测量来获得其方向发射率。
The directional emissivity is deduced from the Bidirectional Reflectance Distribution Function (BRDF) in the hemispherical scattering space of the objects.
基于物体表面法向发射率的特点，简化了热像仪测温的数学模型，得到了红外热像仪测温的计算公式。
Based on the normal emissivity characteristics of measured surface, the mathematical model is simplified, and the formula of temperature measurement using infrared imager is obtained.
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