关键词: 红外图像, 混合消噪, 自适应层叠中值滤波, 自适应局部滤波

Abstract: A mixed adaptive denoising method is presented for noise removal of an infrared image, which contaminated by Guass noise and impulse noise. First, Guass noise and impulse noise is distinguished by the proposed method , then , an adaptive stack median filtering method is adopted to remove the impulse noise; an adaptive local filtering method based on the estimation of local squared error is used to suppress the Gauss noise. Experiments indicate the denoising ability of this method is better than the linear mean filtering method and the ordinary median filtering method by its higher SNR (signal- to- noise rate) and smaller MSE (Minimizes the mean squared error). The eminent performance of this method is also proved by its details preservation capacity and its fast filtering speed.

Key words: Infrared image, mixed denoising, adaptive stack median filtering, adaptive local filtering