基于红外探测技术的嵌入式智能监测平台研究

Research for Embedded Surveillance and Measure Platform Based on Infrared Exploration

在实际照度较低的环境中,可见光波段的CCD摄像机获取的图象模糊不清,影响监测精度。而采用散射光小,穿透能力强的红外CCD,则可以显著改善图象质量,从理论上分析了Rayleigh散射,Mie散射,无选择散射对监测的影响,讨论了红外波段CCD的反射系数、透射系数与波长的关系。实验表明:监测采用红外波段可显著提高空间分辨率、穿透性,且能有效抑制光线散射造成的影响。

In the actual environment of lower illumination intensity, pictures captured by CCD video recorder of visible light wave band are always so out of focus that surveillance precision will be decreased. But using infrared CCD, which has little scattering light, strong penetration ability, can improve image quality greatly. This paper analyzes the effects on surveillance by Rayleigh scattering, Mie scattering and unselective scattering theoretically. In addition it discusses the relation between transmission coefficient, reflection coefficient and wavelength of infrared CCD. Experiments show that using infrared CCD for surveillance can raise space resolution and penetrability apparently, and can restrain the influence of light scattering.