公开(公告)号：US11941844B2

公开(公告)日：2024-03-26

申请号：US17403902

申请日：2021-08-17

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Yepeng Liu ,  Yusheng Zeng ,  Jun Cheng ,  Jing Gu ,  Yue Wang ,  Jianxin Pang

IPC: G06T7/73 ,  G06N3/04 ,  G06V40/16

CPC classification number: G06T7/74 ,  G06N3/04 ,  G06T7/75 ,  G06V40/164 ,  G06T2207/20081 ,  G06T2207/20084 ,  G06T2207/30201

Abstract: An object detection model generation method as well as an electronic device and a computer readable storage medium using the same are provided. The method includes: during the iterative training of the to-be-trained object detection model, the detection accuracy of the iteration nodes of the object detection model is sequentially determined according to the node order, and the mis-detected negative samples of the object detection model at the iteration nodes with the detection accuracy less than or equal to a preset threshold are enhanced. Then the object detection model is trained at the iteration node based on the enhanced negative samples and a first amount of preset training samples. After the training at the iteration nodes are completed, it returns to the step of sequentially determining the detection accuracy of the iteration nodes of the object detection model until the training of the object detection model is completed.

公开(公告)号：US11875599B2

公开(公告)日：2024-01-16

申请号：US17393408

申请日：2021-08-04

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Yusheng Zeng ,  Yepeng Liu ,  Jun Cheng ,  Jianxin Pang ,  Jing Gu

IPC: G06V40/16 ,  G06V10/46 ,  G06V10/98 ,  G06N3/08 ,  G06F18/214 ,  G06F18/2431 ,  G06N3/045

CPC classification number: G06V40/161 ,  G06F18/214 ,  G06F18/2431 ,  G06N3/045 ,  G06N3/08 ,  G06V10/462 ,  G06V10/993

Abstract: A method for detecting blurriness of a human face in an image includes: performing a face detection in a target image; when a human face is detected in the target image, cropping the human face from the target image to obtain a face image and inputting the face image to a first neural network model to perform preliminary detection on a blurriness of the human face in the face image to obtain a preliminary detection result; and when the preliminary detection result meets a deep detection condition, inputting the face image to a second neural network model to perform deep detection on the blurriness of the human face in the face image to obtain a deep detection result.

公开(公告)号：US20220068109A1

公开(公告)日：2022-03-03

申请号：US17138944

申请日：2020-12-31

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Yusheng Zeng ,  Yepeng Liu ,  Jun Cheng ,  Jianxin Pang ,  Youjun Xiong

IPC: G08B21/18 ,  G06K9/00 ,  G06T7/70

Abstract: A mask wearing status alarming method, a mobile device, and a computer readable storage medium are provided. The method includes: performing a face detection on an image to determine face areas each including a target determined as a face; determining a mask wearing status of the target in each face area; confirming the mask wearing status of the target in each face area using a trained face confirmation model to remove the face areas comprising the target being mistakenly determined as the face and determining a face pose in each of the remaining face areas to remove the face areas with the face pose not meeting a preset condition, in response to determining the mask wearing status as a not-masked-well status or a unmasked status; and releasing an alert corresponding to the mask wearing status of the target in each of the remaining face areas.

公开(公告)号：US11727784B2

公开(公告)日：2023-08-15

申请号：US17138944

申请日：2020-12-31

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Yusheng Zeng ,  Yepeng Liu ,  Jun Cheng ,  Jianxin Pang ,  Youjun Xiong

IPC: G06K9/00 ,  G06F21/32 ,  G06K9/62 ,  G08B21/18 ,  G06T7/70 ,  G06V40/16

CPC classification number: G08B21/18 ,  G06T7/70 ,  G06V40/165 ,  G06T2207/30201

Abstract: A mask wearing status alarming method, a mobile device, and a computer readable storage medium are provided. The method includes: performing a face detection on an image to determine face areas each including a target determined as a face; determining a mask wearing status of the target in each face area; confirming the mask wearing status of the target in each face area using a trained face confirmation model to remove the face areas comprising the target being mistakenly determined as the face and determining a face pose in each of the remaining face areas to remove the face areas with the face pose not meeting a preset condition, in response to determining the mask wearing status as a not-masked-well status or a unmasked status; and releasing an alert corresponding to the mask wearing status of the target in each of the remaining face areas.

公开(公告)号：US11373443B2

公开(公告)日：2022-06-28

申请号：US17105667

申请日：2020-11-27

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Yue Wang ,  Jun Cheng ,  Yepeng Liu ,  Yusheng Zeng ,  Jianxin Pang ,  Youjun Xiong

IPC: G06V40/16 ,  G06K9/62 ,  G06T3/40 ,  G06T5/00 ,  G06T5/50

Abstract: The present disclosure provides a method and an apparatus for face recognition and a computer readable storage medium. The method includes: inputting a to-be-recognized blurry face image into a generator of a trained generative adversarial network to obtain a to-be-recognized clear face image; inputting the to-be-recognized clear face image to the feature extraction network to obtain a facial feature of the to-be-recognized clear face image; matching the facial feature of the to-be-recognized clear face image with each user facial feature in a preset facial feature database to determine the user facial feature best matching the to-be-recognized clear face image as a target user facial feature; and determining a user associated with the target user facial feature as a recognition result. Through this solution, the accuracy of the recognition of blurry faces can be improved.