公开(公告)号：US20060210195A1

公开(公告)日：2006-09-21

申请号：US11375130

申请日：2006-03-15

申请人： Yoshihisa Ohguro

发明人： Yoshihisa Ohguro

IPC分类号： G06K9/36

CPC分类号： G06K9/3283 ,  G06K9/3208

摘要： An apparatus, method, system, computer program and product, each capable of detecting an orientation of characters in a document image are disclosed. The orientation of the characters is determined based on a detection result, which indicates the degree of similarity between a character line of the document image having a selected orientation and trained data of the upright position.

公开(公告)号：US20060018544A1

公开(公告)日：2006-01-26

申请号：US11183852

申请日：2005-07-19

申请人： Yoshihisa Ohguro

发明人： Yoshihisa Ohguro

IPC分类号： G06K9/00

CPC分类号： G06K9/3208 ,  G06K2209/01

摘要： An apparatus and method for extracting a predetermined number of consecutive characters from a document image; converting the consecutive characters into a set of symbols using layout information obtained from the consecutive characters; and detecting an orientation of the consecutive characters using occurrence probabilities of the set of symbols.