Ce Liu Richard Szeliski Sing Bing Kang C. Lawrence Zitnick William T. Freeman Automatic Estimation and Removal of Noise from a Single Image. 299-314 2008 30 IEEE Trans. Pattern Anal. Mach. Intell. 2 http://doi.ieeecomputersociety.org/10.1109/TPAMI.2007.1176 db/journals/pami/pami30.html#LiuSKZF08