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公开(公告)号：US11367272B2
公开(公告)日：2022-06-21
申请号：US16854815
申请日：2020-04-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Yi Yang , Yuhao Jiang , Maolin Chen , Shuang Yang
Abstract: A target detection method and apparatus, in which the method includes: obtaining a target candidate region in a to-be-detected image; determining at least two part candidate regions from the target candidate region by using an image segmentation network, where each part candidate region corresponds to one part of a to-be-detected target; and extracting, from the to-be-detected image, local image features corresponding to the part candidate regions; and learning the local image features of the part candidate regions by using a bidirectional long short-term memory LSTM network, to obtain a part relationship feature used to describe a relationship between the part candidate regions; and detecting the to-be-detected target in the to-be-detected image based on the part relationship feature. As a result, image data processing precision in target detection can be improved, application scenarios of target detection can be diversified, and target detection accuracy can be improved.
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公开(公告)号：US11250250B2
公开(公告)日：2022-02-15
申请号：US16576158
申请日：2019-09-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Zhang , Maolin Chen , Bo Bai , Xianbo Mou
IPC: G06K9/00 , G06T7/73 , G06F16/901 , G06F16/14
Abstract: A pedestrian retrieval method and apparatus that belong to the video surveillance field include extracting first feature data, second feature data, and third feature data of a target pedestrian image, where the target pedestrian image is an image of a to-be-retrieved pedestrian, and the first feature data, the second feature data, and the third feature data respectively include a plurality of pieces of body multidimensional feature data, a plurality of pieces of upper-body multidimensional feature data, and a plurality of pieces of lower-body multidimensional feature data of the target pedestrian image, screening stored multidimensional feature data based on the first feature data, the second feature data, and the third feature data to obtain a target feature data set, and outputting a pedestrian retrieval result using the target feature data set.
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公开(公告)号：US11361019B2
公开(公告)日：2022-06-14
申请号：US16018950
申请日：2018-06-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lihu Xiao , Maolin Chen , Lijun Luo , Qiankun You
Abstract: An image query method and apparatus, where the method may include obtaining a global feature of a query image and an attributive feature of the query image, where the attributive feature is a feature used to describe a specific attribute area in the query image, querying an image library using the global feature to obtain a first image set that includes at least one image, where an image included in the image library includes the attributive feature, selecting at least one image whose similarity of the attributive feature to the attributive feature of the query image is greater than a preset threshold from the first image set, and setting the at least one selected image as a second image set. Hence, the method may improve image query efficiency.
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Patent Agency Ranking
公开(公告)号：US20230036193A1
公开(公告)日：2023-02-02
申请号：US17757671
申请日：2020-12-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Luping Li , Maolin Chen , Yujia Han , Miao Jia , Guangming Guo
Abstract: A method includes: obtaining an electrocardiosignal of a target user; importing the electrocardiosignal into a preset atrial fibrillation signal classification model, to obtain a signal type, of the electrocardiosignal, output by the atrial fibrillation signal classification model, where the atrial fibrillation signal classification model is obtained through training with an atrial fibrillation patient being a model training sample; and calculating, based on the signal type of the electrocardiosignal, a risk level of an atrial fibrillation occurrence, to predict whether the target user is to have an atrial fibrillation attack.
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5.发明公开公开(公告)号：US20230337946A1
公开(公告)日：2023-10-26
申请号：US18043332
申请日：2021-08-16
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dong Lu , Luping Li , Maolin Chen
IPC: A61B5/1455 , A61B5/00 , G16H10/60 , G16H50/70 , A61B5/145
CPC classification number: A61B5/14532 , A61B5/1455 , A61B5/681 , A61B5/7275 , G16H10/60 , G16H50/70
Abstract: In an embodiment a method for blood glucose detection includes obtaining, by a first electronic device, to-be-measured PPG (Photoplethysmography) data when the first electronic device detects a blood glucose detection instruction of a first user, performing feature extraction on the to-be-measured PPG data in order to obtain to-be-measured PPG feature data, inputting the to-be-measured PPG feature data into a pre-trained blood glucose detection model in order to obtain a blood glucose detection result and displaying first information according to the blood glucose detection result.
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公开(公告)号：US20200027240A1
公开(公告)日：2020-01-23
申请号：US16587941
申请日：2019-09-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yi Yang , Maolin Chen , Jianhui Zhou , Bo Bai
Abstract: A pedestrian tracking method includes obtaining, within a detection period, an upper body detection box of a to-be-tracked pedestrian appearing in a to-be-tracked video; obtaining a detection period whole body box of the to-be-tracked pedestrian based on the upper body detection box; and obtaining, within the tracking period based on the detection period whole body box, a tracking period whole body box corresponding to an upper body tracking box. It can be learned that the to-be-tracked pedestrian may be tracked using the tracking period whole body box. An aspect ratio of the detection period whole body box may change. Therefore, even if the to-be-tracked pedestrian appears in an abnormal posture within the detection period, an accurate tracking period whole body box of the to-be-tracked pedestrian can still be obtained.
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公开(公告)号：US20200012849A1
公开(公告)日：2020-01-09
申请号：US16576158
申请日：2019-09-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Zhang , Maolin Chen , Bo Bai , Xianbo Mou
IPC: G06K9/00 , G06F16/14 , G06F16/901 , G06T7/73
Abstract: A pedestrian retrieval method and apparatus that belong to the video surveillance field include extracting first feature data, second feature data, and third feature data of a target pedestrian image, where the target pedestrian image is an image of a to-be-retrieved pedestrian, and the first feature data, the second feature data, and the third feature data respectively include a plurality of pieces of body multidimensional feature data, a plurality of pieces of upper-body multidimensional feature data, and a plurality of pieces of lower-body multidimensional feature data of the target pedestrian image, screening stored multidimensional feature data based on the first feature data, the second feature data, and the third feature data to obtain a target feature data set, and outputting a pedestrian retrieval result using the target feature data set.
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公开(公告)号：US20180307706A1
公开(公告)日：2018-10-25
申请号：US16018950
申请日：2018-06-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lihu Xiao , Maolin Chen , Lijun Luo , Qiankun You
CPC classification number: G06F17/30256 , G06F17/30 , G06F17/3028 , G06K9/00771 , G06K9/46
Abstract: An image query method and apparatus, where the method may include obtaining a global feature of a query image and an attributive feature of the query image, where the attributive feature is a feature used to describe a specific attribute area in the query image, querying an image library using the global feature to obtain a first image set that includes at least one image, where an image included in the image library includes the attributive feature, selecting at least one image whose similarity of the attributive feature to the attributive feature of the query image is greater than a preset threshold from the first image set, and setting the at least one selected image as a second image set. Hence, the method may improve image query efficiency.
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