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公开(公告)号：US11482023B2
公开(公告)日：2022-10-25
申请号：US16710528
申请日：2019-12-11
Inventor： Chengquan Zhang , Zuming Huang , Mengyi En , Junyu Han , Errui Ding
IPC: G06V30/262 , G06N20/00 , G06V10/22 , G06V30/148 , G06V30/10
Abstract: A method and apparatus for detecting text regions in an image, a device, and a medium are provided. The method may include: detecting, based on feature representation of an image, a first text region in the image, where the first text region covers a text in the image, a region occupied by the text being of a certain shape; determining, based on a feature block of the first text region, text geometry information associated with the text, where the text geometry information includes a text centerline of the text and distance information of the centerline from the upper and lower borders of the text; and adjusting, based on the text geometry information associated with the text, the first text region to a second text region, where the second text region also covers the text and is smaller than the first text region.
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公开(公告)号：US20210342621A1
公开(公告)日：2021-11-04
申请号：US17373378
申请日：2021-07-12
Inventor： Pengyuan LV , Chengquan Zhang
Abstract: The disclosure provides a method and an apparatus for character recognition and processing. A character region is labelled for each character contained in each sample image of a sample image set. A character category and a character position code corresponding to each character region are labelled. A preset neural network model for character recognition is trained based on the sample image set having labelled character regions, character categories and character position codes corresponding to the character regions.
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3.发明申请公开(公告)号：US20210201182A1
公开(公告)日：2021-07-01
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: G06N5/04 , G06N3/04 , G06F16/901
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：US11881044B2
公开(公告)日：2024-01-23
申请号：US17353540
申请日：2021-06-21
Inventor： Chengquan Zhang , Mengyi En , Ju Huang , Qunyi Xie , Xiameng Qin , Kun Yao , Junyu Han , Jingtuo Liu , Errui Ding
IPC: G06V30/414 , G06T7/136 , G06T7/11 , G06F18/213 , G06V30/146 , G06V30/18 , G06V10/764 , G06V10/82 , G06V30/10
CPC classification number: G06V30/414 , G06F18/213 , G06T7/11 , G06T7/136 , G06V10/764 , G06V10/82 , G06V30/147 , G06V30/18057 , G06T2207/30176 , G06V30/10
Abstract: A method and apparatus for processing an image, a device and a storage medium are provided. An implementation of the method includes: acquiring a template image, the template image including at least one region of interest; determining a first feature map corresponding to each region of interest in the template image; acquiring a target image; determining a second feature map of the target image; and determining at least one region of interest in the target image according to the first feature map and the second feature map.
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5.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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Patent Agency Ranking
公开(公告)号：US20200327384A1
公开(公告)日：2020-10-15
申请号：US16710528
申请日：2019-12-11
Inventor： Chengquan Zhang , Zuming Huang , Mengyi En , Junyu Han , Errui Ding
Abstract: Embodiments of the present disclosure provide a method and apparatus for detecting text regions in an image, a device, and a medium. The method may include: detecting, based on feature representation of an image, a first text region in the image, where the first text region covers a text in the image, a region occupied by the text being of a certain shape; determining, based on a feature block of the first text region, text geometry information associated with the text, where the text geometry information includes a text centerline of the text and distance information of the centerline from the upper and lower borders of the text; and adjusting, based on the text geometry information associated with the text, the first text region to a second text region, where the second text region also covers the text and is smaller than the first text region.
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公开(公告)号：US11210546B2
公开(公告)日：2021-12-28
申请号：US16822085
申请日：2020-03-18
Inventor： Yipeng Sun , Chengquan Zhang , Zuming Huang , Jiaming Liu , Junyu Han , Errui Ding
Abstract: The present disclosure proposes an end-to-end text recognition method and apparatus, computer device and readable medium. The method comprises: obtaining a to-be-recognized picture containing a text region; recognizing a position of the text region in the to-be-recognized picture and text content included in the text region with a pre-trained end-to-end text recognition model; the end-to-end text recognition model comprising a region of interest perspective transformation processing module for performing perspective transformation processing for the text region. The technical solution of the present disclosure does not need to serially arrange a plurality of steps, and may avoid introducing the accumulated errors and may effectively improve the accuracy of the text recognition.
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公开(公告)号：US20210357710A1
公开(公告)日：2021-11-18
申请号：US17352668
申请日：2021-06-21
Inventor： Chengquan Zhang , Pengyuan Lv , Kun Yao , Junyu Han , Jingtuo Liu
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：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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10.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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