Peng Zhang Lin Ni WDFB Contourlet and Shearing Invariant for Image Denoising. 662-667 2005 conf/icita/2005 ICITA (1) https://doi.org/10.1109/ICITA.2005.309 https://doi.ieeecomputersociety.org/10.1109/ICITA.2005.309 db/conf/icita/icita2005-1.html#ZhangN05