热红外发射率对热红外成像及其图像判读的影响

在热红外扫描图像的判读工作中,热红外发射率是一个极为重要的影响因素。在某些特定条件下,这一因素的影响是十分显著的。然而,迄今为止,这一因素在热红外图像的判读工作中还没有引起人们的足够重视。本文试图从热红外辐射定律出发,结合白天和夜间的热红外遥感图像资料,以及地面温度测量数据来说明这一因素的影响,并较详细地讨论了一些与热红外发射率有关的影响因素。但是,如何在成像或者在图像判读过程中消除这一影响因素,还有待于进一步的研究。

The Effect of Emissivity on Thermal Image and It's Interpretation

The emissivity of natural meterial is a important factor in the interpretation of thermal image. Sometime, the effect of emissivity is quite conspicuous under some specific conditions of environment. However, one does not, pay enough attention to their infuluences in the interpretation of the thermal remote sensing data. In this paper, author proceeded with the thermal radiation law attempts to illustrate this problem by combining the thermal image and temperature measurement data on the ground. Meanwhile, some factors to be closely related to the emissivities have been represented. But, how we can eliminate their effects in the interpretation of thermal image is depended on further study.