发明名称 Use of frequency transforms in the analysis of image sensors
摘要 A method for detecting and removing noise from an image, the method includes the steps of applying a frequency transform to the image for obtaining a magnitude image; applying a threshold value to values of the magnitude image for obtaining threshold values; setting one or more threshold values to a predetermined value; and reconstructing the image from the magnitude image having the predetermined values for removing noise from the image.
申请公布号 US2006222261(A1) 申请公布日期 2006.10.05
申请号 US20050180816 申请日期 2005.07.13
申请人 发明人 ARCHER GREG L.;MEISENZAHL ERIC J.;NICHOLS DAVID N.;WANG SHEN
分类号 G06K9/40;G06K9/36 主分类号 G06K9/40
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