Infrared Image De-noising Based on Wavelet Transform and Improved Median Filtering

The image de-noising is a core and hot issue in the research area of infrared imaging.The denoising effect of the thermograph plays an important role in the later image processing.An improved algorithm is proposed to overcome the disadvantage that the aberration details of infrared thermal images can not be remained in traditional infrared thermal image denoising algorithms.This method adopts the improved median filtering and wavelet transform to perform the denoising processing of infrared thermographs.The experimental simulation shows that the method can effectively remain the aberration details of infrared thermal images,and has an ideal effect of noise suppression and better robustness for the post processing.