发明名称 CHARACTER NORMALIZATION USING AN ELLIPTICAL SAMPLING WINDOW FOR OPTICAL CHARACTER RECOGNITION
摘要 <p>In character normalization for optical character recognition preprocessing employing horizontal and vertical scaling factors A and B, the value of each pixel (16) in the normalized character image superimposed on the original character image is determined from the values of the pixels in the original image lying within an elliptical neighborhood surrounding the normalized character image pixel and having major and minor elliptical axes proportional to A and B.</p>
申请公布号 WO1991008553(A2) 申请公布日期 1991.06.13
申请号 US1990006721 申请日期 1990.11.19
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