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    Method and apparatus for recognizing character information at a variable magnification
    5.
    发明授权
    Method and apparatus for recognizing character information at a variable magnification 失效
    用于以可变放大率识别字符信息的方法和装置

    公开(公告)号：US5809183A

    公开(公告)日：1998-09-15

    申请号：US351227

    申请日：1994-11-30

    申请人： Masahiro Serizawa ,  Yoshihiro Hosomi ,  Hirokazu Takahashi ,  Yoshio Mizuno ,  Tokuharu Kaneko ,  Satoshi Kaneko ,  Taisei Fukada ,  Keizo Isemura ,  Akihiko Satoh ,  Hirohiko Kishimoto ,  Masayoshi Taira ,  Noriaki Matsui

    发明人： Masahiro Serizawa ,  Yoshihiro Hosomi ,  Hirokazu Takahashi ,  Yoshio Mizuno ,  Tokuharu Kaneko ,  Satoshi Kaneko ,  Taisei Fukada ,  Keizo Isemura ,  Akihiko Satoh ,  Hirohiko Kishimoto ,  Masayoshi Taira ,  Noriaki Matsui

    IPC分类号： G06K9/20 ,  G06K9/03 ,  G06K9/32 ,  G06K9/46 ,  G06K9/62 ,  G06K9/00

    CPC分类号： G06K9/3233 ,  G06K2209/01

    摘要： A method and apparatus for recognizing character information in an original document with high recognition accuracy regardless of the size of a character to be recognized. An input image is processed by an image processing circuit and stored in an image recording unit. A character region in the recorded image data is detected by a recognition section, and the image corresponding to the detected character region is read with a predetermined magnification. Character recognition is performed on the image of the character region read at the predetermined magnification, in the recognition section. If the recognition accuracy does not satisfy a predetermined criterion, the same image is read again with a modified magnification wherein the magnification is determined on the basis of preset sizes and the size of the character pattern of a character to be recognized. The image obtained in this way is subjected again to character recognition processing until the recognition accuracy satisfies the predetermined criterion. A character pattern corresponding to the recognized character is generated, and recorded together with the image recorded in the image recording unit in an image recording section. Thus, an image is read with a magnification optimized depending on a character size of an original document image and on a recognition accuracy.

    摘要翻译： 用于识别原始文档中的字符信息的方法和装置，而不管要识别的字符的大小如何。 输入图像由图像处理电路处理并存储在图像记录单元中。 记录图像数据中的字符区域由识别部分检测，并且以预定的倍率读取与检测到的字符区域对应的图像。 在识别部中对以预定倍率读取的字符区域的图像执行字符识别。 如果识别精度不满足预定的标准，则以改变的倍率再次读取相同的图像，其中根据预先确定的尺寸和要识别的字符的字符图案的大小来确定放大倍率。 以这种方式获得的图像再次进行字符识别处理，直到识别精度满足预定标准。 产生与所识别的字符相对应的字符图形，并将其与记录在图像记录单元中的图像一起记录在图像记录部中。 因此，根据原始文件图像的字符尺寸和识别精度，以优化的放大倍率读取图像。