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1. 发明授权

US5825906A Signature recognition system 失效
标题翻译：签名识别系统
公开(公告)号：US5825906A
公开(公告)日：1998-10-20
申请号：US807980
申请日：1997-03-03
申请人： Kenzo Obata , Yoshiki Uchikawa , Takeshi Furuhashi , Xuhua Yang
发明人： Kenzo Obata , Yoshiki Uchikawa , Takeshi Furuhashi , Xuhua Yang
IPC分类号： G06T7/00 , G06K9/00 , G06G7/00
CPC分类号： G06K9/00154 , Y10S706/90
摘要： A micro computer, constituting a signature recognition apparatus, comprises an automatic signature creating section, a data extracting section, a recognition network section, a retrieval section, and a memory section. The data extracting section creates personal data representing a plurality of personal characteristics or features based on an input signature. The recognition network section selects the data to be used for evaluation from the personal data representing personal characteristics or features, and executes an evaluation of thus chosen data. The retrieval section, using the genetic algorithm, finds out a combination pattern having preferable evaluation result. Accordingly, in recognizing signatures, it becomes possible to know beforehand what kind of personal characteristics or features data should be utilized for the recognition of the given signatures, thereby increasing the accuracy in the recognition.
摘要翻译：构成签名识别装置的微型计算机包括自动签名创建部分，数据提取部分，识别网络部分，检索部分和存储部分。数据提取部分基于输入的签名创建表示多个个人特征或特征的个人数据。识别网络部分从表示个人特征或特征的个人数据中选择要用于评估的数据，并且执行这样选择的数据的评估。使用遗传算法的检索部分找到具有优选评估结果的组合模式。因此，在识别签名时，可以事先知道用于识别给定签名的什么样的个人特征或特征数据，从而提高识别的准确性。

2. 发明授权

US06360948B1 Method of reading two-dimensional code and storage medium thereof 有权
标题翻译：二维码及其存储介质的读取方法
公开(公告)号：US06360948B1
公开(公告)日：2002-03-26
申请号：US09447885
申请日：1999-11-24
申请人： Xuhua Yang , Hisashi Shigekusa
发明人： Xuhua Yang , Hisashi Shigekusa
IPC分类号： G06K710
CPC分类号： G06K7/1473 , G06K7/14 , G06K7/1417
摘要： A method of reading information out of a two-dimensional code made up of a matrix of cells having a given optical pattern is provided. The two-dimensional code has location symbols used to locate the two-dimensional code and alignment symbols used to locate the cells. The method first calculates a central position of each of the alignment symbols in an image of the two-dimensional code using a predetermined positional relation to the location symbols and selects one of reference patterns which matches up with an optical pattern formed with a pixel lying at the calculated central position of the alignment symbol and surrounding pixels. The method specifies an actual central position of each of the alignment symbols in the image of the two-dimensional code using the matched reference pattern. This compensates for a locational error between the calculated central position and the actual central position of each of the alignment symbols due to deformation of the image taking place, for example, when the two-dimensional code is printed on a round object.
摘要翻译：提供了从具有给定光学图案的单元矩阵组成的二维码中读取信息的方法。二维码具有用于定位用于定位单元的二维码和对齐符号的位置符号。该方法首先使用与位置符号的预定位置关系来计算二维码的图像中的每个对准符号的中心位置，并选择与形成有位于像素处的像素形成的光学图案相匹配的参考图案之一计算的对准符号和周围像素的中心位置。该方法使用匹配的参考图案来指定二维码的图像中的每个对准符号的实际中心位置。由于例如当将二维码打印在圆形物体上时，补偿了由于图像发生变形而导致的每个对准符号的计算中心位置与实际中心位置之间的位置误差。

3. 发明授权

US6000614A Two-dimensional code reading apparatus 失效
标题翻译：二维码读取装置
公开(公告)号：US6000614A
公开(公告)日：1999-12-14
申请号：US996345
申请日：1997-12-22
申请人： Xuhua Yang , Masahiro Hara
发明人： Xuhua Yang , Masahiro Hara
IPC分类号： G06K7/14 , G06K7/10
CPC分类号： G06K7/1473 , G06K7/14
摘要： A two-dimensional code reading apparatus uses the image of a reference pattern of a known shape in the two-dimensional code to compute areas, shapes and positions of cells in the image of the two-dimensional code and corrects these computed values using correction values obtained by identifying cells isolated from cells of the same type in at least one direction whenever they appear and extracting their actual boundary coordinates directly from the image data. As a result, even if there is distortion in the image of the two-dimensional a reading scope for each cell to be read is set to a suitable area and the reading position of each cell is determined accurately in correspondence with the distortion and the content of the two-dimensional code is thereby read correctly.
摘要翻译：二维码读取装置使用二维码中已知形状的参考图案的图像来计算二维码图像中的小区的区域，形状和位置，并使用校正值来校正这些计算值通过从图像数据直接提取它们的实际边界坐标来识别从至少一个方向上的相同类型的细胞分离出来的细胞。结果，即使二维图像中的失真将要读取的每个单元的读取范围设置为适当的区域，并且与畸变和内容相对应地精确地确定每个单元的读取位置的二维码被正确读取。

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