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公开(公告)号：US20210334602A1
公开(公告)日：2021-10-28
申请号：US17172031
申请日：2021-02-09
Inventor： Shanshan Liu , Chengquan Zhang , Xuan Li , Mengyi En , Hailun Xu , Xiaoqiang Zhang
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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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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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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Patent Agency Ranking
公开(公告)号：US12025459B2
公开(公告)日：2024-07-02
申请号：US17445890
申请日：2021-08-25
Inventor： Pingnan Chang , Ye Sun , Chen Chen , Jia Zhou , Shanshan Liu , Jin Tian , Yao Xiao
IPC: G01C21/36
CPC classification number: G01C21/3647 , G01C21/367
Abstract: Provided are methods and apparatuses for navigation guidance and establishing a three-dimensional real scene model, a device and a medium, which relate to the field of artificial intelligence and, in particular, intelligent transportation technologies. A specific implementation includes: determining a navigation route of a navigation device and candidate three-dimensional real scene data corresponding to the navigation route; where the candidate three-dimensional real scene data includes candidate location information, candidate three-dimensional model data and a candidate observation viewing angle; matching real-time positioning information of the navigation device with the candidate location information in the candidate three-dimensional real scene data to obtain target three-dimensional real scene data; and simulating target three-dimensional model data in the target three-dimensional real scene data at a target observation viewing angle in the target three-dimensional real scene data and at a location corresponding to the real-time positioning information to obtain a real-time navigation guidance image.
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6.发明申请公开(公告)号：US20210209401A1
公开(公告)日：2021-07-08
申请号：US17209380
申请日：2021-03-23
Inventor： Xiaoqiang Zhang , Chengquan Zhang , Shanshan Liu
Abstract: A character recognition method, a character recognition apparatus, an electronic device and a computer readable storage medium are disclosed. The character recognition method includes: determining semantic information and first position information of each individual character recognized from an image; constructing a graph network according to the semantic information and the first position information of each individual character; and determining a character recognition result of the image according to a feature of each individual character calculated by the graph network.
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7.发明授权公开(公告)号：US11775845B2
公开(公告)日：2023-10-03
申请号：US17209380
申请日：2021-03-23
Inventor： Xiaoqiang Zhang , Chengquan Zhang , Shanshan Liu
IPC: G06N5/00 , G06N5/022 , G06V30/148 , G06V30/262 , G06V30/18 , G06V30/196 , G06V10/764 , G06V20/62 , G06V30/10
CPC classification number: G06N5/022 , G06V10/764 , G06V20/62 , G06V30/153 , G06V30/18181 , G06V30/1988 , G06V30/274 , G06V30/10
Abstract: A character recognition method, a character recognition apparatus, an electronic device and a computer readable storage medium are disclosed. The character recognition method includes: determining semantic information and first position information of each individual character recognized from an image; constructing a graph network according to the semantic information and the first position information of each individual character; and determining a character recognition result of the image according to a feature of each individual character calculated by the graph network.
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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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