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专利名称：Computer-aided method for image feature
analysis and diagnosis in mammography
发明人：Robert M. Nishikawa,Takehiro Ema,Hiroyuki
Yoshida,Kunio Doi
申请号：US08/536253申请日：19950929公开号：US05740268A公开日：19980414
摘要：A method for automated detection of abnormal anatomic regions, wherein amammogram is digitized to produce a digital image and the digital image is processedusing local edge gradient analysis and linear pattern analysis in addition to featureextraction routines to identify abnormal anatomic regions. Noise reduction filtering andpit- filling/spike-removal filtering techniques are also provided. Multiple differenceimaging techniques are also used in which difference images employing different filtercharacteristics are obtained and processing results logically OR'ed to identify abnormalanatomic regions. In another embodiment the processing results with and without noisereduction filtering are logically AND'ed to improve detection sensitivity. Also, in anotherembodiment the wavelet transform is utilized in the identification and detection ofabnormal regions. The wavelet transform is preferably used in conjunction with thedifference imaging technique with the results of the two techniques being logicallyOR'ed.
申请人：ARCH DEVELOPMENT CORPORATION
代理机构：Oblon, Spivak, McClelland, Maier & Neustadt, P
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