公开(公告)号：US4193056A

公开(公告)日：1980-03-11

申请号：US908657

申请日：1978-05-23

申请人： Toshiaki Morita ,  Hironari Takatori ,  Fusao Makino ,  Syoichi Yasuda ,  Yoshiki Nishioka

发明人： Toshiaki Morita ,  Hironari Takatori ,  Fusao Makino ,  Syoichi Yasuda ,  Yoshiki Nishioka

IPC分类号： G06K9/46 ,  G06K9/12

CPC分类号： G06K9/4638 ,  G06K2209/01

摘要： A character pattern to be recognized is divided into a predetermined number of parallel segments of equal width extending in one direction and character information on respective ones of the segments is read out via a line of photoelectric cells. Two pieces of the character information on two adjacent segments are evaluated together in developing symbolic information indicative of the correlation between two adjacent segment patterns. By the action of simplified feature extraction systems, a plurality of two-dimensional features are established in accordance with all combinations of the symbolic information which have been derived throughout the scanning procedure. The symbolic information is developed particularly with regard to the number of loops within the character pattern, the shape of the left edge portion, the shape of the right edge portion, the shape of the upper edge portion and the shape of the lower edge portion of the character pattern. These combinations of the symbolic information are compared with reference information prestored in a memory of an OCR (optical character reader).

摘要翻译： 要识别的字符图案被分成预定数量的在一个方向上延伸的相等宽度的平行片段，并且通过光电单元线读出关于相应片段上的字符信息。 在开发表示两个相邻片段图案之间的相关性的符号信息时，两个相邻片段上的两个字符信息被一起评估。 通过简化特征提取系统的动作，根据在整个扫描过程中得出的符号信息的所有组合来建立多个二维特征。 关于字符图案中的环的数量，左边缘部分的形状，右边缘部分的形状，上边缘部分的形状和下边缘部分的形状，特别地开发了符号信息 字符模式。 将符号信息的这些组合与预先存储在OCR（光学字符读取器）的存储器中的参考信息进行比较。