MMW and THz images denoising based on adaptive CBM3D
Li Dai, You-Sai Zhang, Yuanjiang Li, Haoxiang Wang · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2014
Over the past decades, millimeter wave and terahertz radiation has received a lot of interest due to advances in emission and detection technologies which allowed the widely application of the millimeter wave and terahertz imaging technology. This paper focuses on solving the problem of this sort of images existing stripe noise, block effect and other interfered information. A new kind of nonlocal average method is put forward. Suitable level Gaussian noise is added to resonate with the image. Adaptive color block-matching 3D filtering is used to denoise. Experimental results demonstrate that it improves the visual effect and removes interference at the same time, making the analysis of the image and target detection more easily.