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11.发明申请公开(公告)号：US20210390296A1
公开(公告)日：2021-12-16
申请号：US17199072
申请日：2021-03-11
Inventor： Mengyi En , Shanshan Liu , Xuan Li , Chengquan Zhang , Hailun Xu , Xiaoqiang Zhang
IPC: G06K9/00 , G06F40/279 , G06N3/08
Abstract: The present application discloses a method and an apparatus for optical character recognition, an electronic device and a storage medium, and relates to the fields of artificial intelligence and deep learning. The method may include: determining, for a to-be-recognized image, a text bounding box of a text area therein, and extracting a text area image from the to-be-recognized image according to the text bounding box; determining a bounding box of text lines in the text area image, and extracting a text-line image from the text area image according to the bounding box; and performing text sequence recognition on the text-line image, and obtaining a recognition result. The application of the solution in the present application can improve a recognition speed and the like.
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公开(公告)号：US20210224568A1
公开(公告)日：2021-07-22
申请号：US17209987
申请日：2021-03-23
Inventor： Xiaoqiang Zhang , Pengyuan LV , Shanshan Liu , Chengquan Zhang
IPC: G06K9/32 , G06K9/34 , G06K9/62 , G06F40/284 , G06F40/205
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.
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Patent Agency Ranking
13.发明授权公开(公告)号：US12211304B2
公开(公告)日：2025-01-28
申请号：US17200448
申请日：2021-03-12
Inventor： Yulin Li , Xiameng Qin , Chengquan Zhang , Junyu Han , Errui Ding , Tian Wu , Haifeng Wang
IPC: G06F16/901 , G06N3/047 , G06N5/04 , G06V10/22 , G06V10/80 , G06V30/262 , G06V30/414 , G06V10/24
Abstract: Embodiments of the present disclosure provide a method and apparatus for performing a structured extraction on a text, a device and a storage medium. The method may include: performing a text detection on an entity text image to obtain a position and content of a text line of the entity text image; extracting multivariate information of the text line based on the position and the content of the text line; performing a feature fusion on the multivariate information of the text line to obtain a multimodal fusion feature of the text line; performing category and relationship reasoning based on the multimodal fusion feature of the text line to obtain a category and a relationship probability matrix of the text line; and constructing structured information of the entity text image based on the category and the relationship probability matrix of the text line.
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公开(公告)号：US11861919B2
公开(公告)日：2024-01-02
申请号：US17352668
申请日：2021-06-21
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.
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公开(公告)号：US11836996B2
公开(公告)日：2023-12-05
申请号：US17209987
申请日：2021-03-23
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.
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公开(公告)号：US11810384B2
公开(公告)日：2023-11-07
申请号：US17172031
申请日：2021-02-09
Inventor： Shanshan Liu , Chengquan Zhang , Xuan Li , Mengyi En , Hailun Xu , Xiaoqiang Zhang
IPC: G06V30/414 , G06V30/24 , G06F18/21 , G06F18/214
CPC classification number: G06V30/414 , G06F18/214 , G06F18/2178 , G06V30/2504 , G06V2201/02
Abstract: The present application discloses a method and an apparatus for recognizing text content, and an electronic device, and relates to a text recognition technique in the field of computer technology. The specific implementation is as follows: acquiring a dial picture; detecting at least one text centerline and a bounding box corresponding to each text centerline in the dial picture; and recognizing text content in each line of text in the dial picture based on the at least one text centerline and the bounding box corresponding to each text centerline.
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17.发明授权公开(公告)号：US11694461B2
公开(公告)日：2023-07-04
申请号：US17199072
申请日：2021-03-11
Inventor： Mengyi En , Shanshan Liu , Xuan Li , Chengquan Zhang , Hailun Xu , Xiaoqiang Zhang
IPC: G06V30/414 , G06F40/279 , G06N3/08 , G06V30/413 , G06V30/148 , G06V30/19 , G06V30/262 , G06V10/82 , G06V20/62 , G06V30/10
CPC classification number: G06V30/414 , G06F40/279 , G06N3/08 , G06V10/82 , G06V20/62 , G06V30/148 , G06V30/19173 , G06V30/262 , G06V30/413 , G06V30/10
Abstract: The present application discloses a method and an apparatus for optical character recognition, an electronic device and a storage medium, and relates to the fields of artificial intelligence and deep learning. The method may include: determining, for a to-be-recognized image, a text bounding box of a text area therein, and extracting a text area image from the to-be-recognized image according to the text bounding box; determining a bounding box of text lines in the text area image, and extracting a text-line image from the text area image according to the bounding box; and performing text sequence recognition on the text-line image, and obtaining a recognition result. The application of the solution in the present application can improve a recognition speed and the like.
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