Patents by Inventor Yepeng Liu

Yepeng Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240116174
    Abstract: A drive structure of a desktop robotic arm is disclosed, including a base and a turntable. The base is internally provided with a turntable drive motor and a turntable drive shaft, the turntable drive motor is drive-connected to the turntable drive shaft, and the turntable drive shaft is drive-connected to the turntable. The turntable is provided with an upper arm drive motor and a forearm drive motor. The turntable drive motor, the upper arm drive motor and the forearm drive motor are all servo motors with absolute value encoders. According to the drive structure of the desktop robotic arm, by using servo motors as the drive motors for controlling the turntable, an upper arm and a forearm, for which the absolute value encoders are correspondingly configured, control accuracy and driving power can be improved. Further, the present invention also discloses a desktop robotic arm and a robot.
    Type: Application
    Filed: December 14, 2023
    Publication date: April 11, 2024
    Inventors: Zhufu LIU, Weizhi YE, Yepeng LI, Zhongbin WANG, Peichao LIU, Lun WANG, Xulin LANG
  • Patent number: 11941844
    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.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: March 26, 2024
    Assignee: UBTECH ROBOTICS CORP LTD
    Inventors: Yepeng Liu, Yusheng Zeng, Jun Cheng, Jing Gu, Yue Wang, Jianxin Pang
  • Patent number: 11875599
    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.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: January 16, 2024
    Assignee: UBTECH ROBOTICS CORP LTD
    Inventors: Yusheng Zeng, Yepeng Liu, Jun Cheng, Jianxin Pang, Jing Gu
  • Patent number: 11727784
    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.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: August 15, 2023
    Assignee: UBTECH ROBOTICS CORP LTD
    Inventors: Yusheng Zeng, Yepeng Liu, Jun Cheng, Jianxin Pang, Youjun Xiong
  • Patent number: 11373443
    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.
    Type: Grant
    Filed: November 27, 2020
    Date of Patent: June 28, 2022
    Assignee: UBTECH ROBOTICS CORP LTD
    Inventors: Yue Wang, Jun Cheng, Yepeng Liu, Yusheng Zeng, Jianxin Pang, Youjun Xiong
  • Publication number: 20220068109
    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.
    Type: Application
    Filed: December 31, 2020
    Publication date: March 3, 2022
    Inventors: Yusheng Zeng, Yepeng Liu, Jun Cheng, Jianxin Pang, Youjun Xiong
  • Publication number: 20220044006
    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.
    Type: Application
    Filed: November 27, 2020
    Publication date: February 10, 2022
    Inventors: Yue Wang, Jun Cheng, Yepeng Liu, Yusheng Zeng, Jianxin Pang, Youjun Xiong
  • Publication number: 20220044004
    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.
    Type: Application
    Filed: August 4, 2021
    Publication date: February 10, 2022
    Inventors: Yusheng Zeng, Yepeng Liu, Jun Cheng, Jianxin Pang, Jing Gu
  • Publication number: 20220044438
    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.
    Type: Application
    Filed: August 17, 2021
    Publication date: February 10, 2022
    Inventors: Yepeng Liu, Yusheng Zeng, Jun Cheng, Jing Gu, Yue Wang, Jianxin Pang