ABSTRACT
It can be seen from Figure 1 that infrared radiation of the target can convert into infrared imagery after a series of processing such as atmospheric transmission, optical imaging, infrared detector, etc. Hence, both the environment outside the infrared imaging system and the physical parameter inside it influence the infrared imagery. The infrared image reflects the space distribution of the infrared radiation between the target and the background and its radiance distribution is mainly decided by the temperature of the observed target and the emissivity of the infrared wave. Since noise is the biggest factor to influence the quality of infrared imagery, denoising is the key point in pre-processing of the infrared imagery.
