公开(公告)号：US20210357710A1

公开(公告)日：2021-11-18

申请号：US17352668

申请日：2021-06-21

Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd.

Inventor： Chengquan Zhang ,  Pengyuan Lv ,  Kun Yao ,  Junyu Han ,  Jingtuo Liu

IPC: G06K9/72 ,  G06K9/34 ,  G06K9/00 ,  G06K9/46 ,  G06N3/04 ,  G06N3/08

Abstract: A text recognition method includes: acquiring an image including text information, the text information including M characters, M being a positive integer greater than 1; performing text recognition on the image to acquire character information about the M characters; recognizing reading direction information about each character in accordance with the character information about the M characters, the reading direction information being used to indicate a next character corresponding to a current character in a semantic reading order; and ranking the M characters in accordance with the reading direction information about the M characters to acquire a text recognition result of the text information.

公开(公告)号：US11861919B2

公开(公告)日：2024-01-02

申请号：US17352668

申请日：2021-06-21

Applicant: Beijing Baidu Netcom Science and Technology Co., Ltd.

Inventor： Chengquan Zhang ,  Pengyuan Lv ,  Kun Yao ,  Junyu Han ,  Jingtuo Liu

IPC: G06V20/00 ,  G06V20/62 ,  G06N3/08 ,  G06V30/262 ,  G06V20/58 ,  G06V30/148 ,  G06N3/045 ,  G06V30/28 ,  G06V30/10

CPC classification number: G06V20/62 ,  G06N3/045 ,  G06N3/08 ,  G06V20/582 ,  G06V20/63 ,  G06V30/153 ,  G06V30/262 ,  G06V30/274 ,  G06V30/10 ,  G06V30/287 ,  G06V30/293

Abstract: A text recognition method includes: acquiring an image including text information, the text information including M characters, M being a positive integer greater than 1; performing text recognition on the image to acquire character information about the M characters; recognizing reading direction information about each character in accordance with the character information about the M characters, the reading direction information being used to indicate a next character corresponding to a current character in a semantic reading order; and ranking the M characters in accordance with the reading direction information about the M characters to acquire a text recognition result of the text information.

公开(公告)号：US11836996B2

公开(公告)日：2023-12-05

申请号：US17209987

申请日：2021-03-23

Applicant: BEIJING BAIDU NETCOM SCIENCE AND TECHNOLOGY CO., LTD.

Inventor： Xiaoqiang Zhang ,  Pengyuan Lv ,  Shanshan Liu ,  Chengquan Zhang

IPC: G06V10/70 ,  G06F40/10 ,  G06F18/20 ,  G06F18/213 ,  G06V20/62 ,  G06F40/284 ,  G06F40/205 ,  G06V30/148 ,  G06F18/21 ,  G06V30/262 ,  G06V10/764 ,  G06V10/82 ,  G06V30/10

CPC classification number: G06V20/62 ,  G06F18/2178 ,  G06F40/205 ,  G06F40/284 ,  G06V10/764 ,  G06V10/82 ,  G06V20/63 ,  G06V30/153 ,  G06V30/274 ,  G06V30/10

Abstract: The present disclosure discloses a method and apparatus for recognizing a text. The method comprises: acquiring images of a text area of an input image, the acquired images including a text centerline graph, a text direction offset graph, a text boundary offset graph, and a text character classification graph; extracting coordinates of feature points of a character center from the text centerline graph; sorting the extracted coordinates of the feature points based on the text direction offset graph to obtain a coordinate sequence of the feature points; determining a polygonal bounding box of the text area based on the coordinate sequence of the feature points of the character center and the text boundary offset graph; and determining a classification result of the feature points of the character center, based on the coordinate sequence of the feature points of the character center and the text character classification graph.