Patents by Inventor Keqing CHEN

Keqing CHEN 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: 20250100534
    Abstract: An automatic shift control method, apparatus, device and storage medium. A vehicle is controlled to perform an elastic release operation in response to a drive switching request. When unloading torque of a first electric machine of the vehicle is completed, a moving component of a disengaging and engaging apparatus of the vehicle is controlled to perform a position adaptive operation. Meshing direction and separation control is performed on the moving component when a rotational speed of the moving component reaches a stable state, to cause the moving component to move in a disengaging direction to a completely disengaged position, and switch of the vehicle from a four-wheel drive power mode to a two-wheel drive mode is completed.
    Type: Application
    Filed: December 8, 2022
    Publication date: March 27, 2025
    Applicants: Zhejiang ZEEKR Intelligent Technology Co., Ltd., Viridi E-Mobility Technology (Ningbo) Co., Ltd., Zhejiang Geely Holding Group Co., LTD.
    Inventors: Keqing SHEN, Dong CHEN, Qiao DONG, Wenliang LIU, Yingguo MA, Zouyun SHI, Qimiao CHEN, Huian SUN, Bin GU, Ou RUAN, Changluo LI
  • Publication number: 20250091450
    Abstract: The present application relates to the field of electric vehicles, and particularly to an electric vehicle and an electric-machinery control method therefor, an apparatus and a storage medium. The electric-machinery control method for the electric vehicle of the present application includes: detecting a relative deformation amount of a transmission system between a driving gear and a wheel end of an electric machinery; determining a first speed differential value between a first driving-gear rotational speed and a first wheel-end converted rotational speed when the relative deformation amount is a first threshold value; determining an output torque of the electric machinery according to the first speed differential value; controlling the driving gear to perform a gear-approaching operation relative to the driven gear according to the output torque.
    Type: Application
    Filed: January 16, 2023
    Publication date: March 20, 2025
    Applicants: Zhejiang ZEEKR Intelligent Technology Co., Ltd., VIRIDI E-MOBILITY TECHNOLOGY (NINGBO) CO., LTD., Zhejiang Geely Holding Group Co., LTD.
    Inventors: Keqing SHEN, Yingguo MA, Dong CHEN, Qimiao CHEN, Changluo LI
  • Publication number: 20250071874
    Abstract: This application relates to a method, device and storage medium for controlling a light strip. The method includes: obtaining control information and user attribute information of a target light strip having a plurality of lamp beads; determining light effect parameters of the plurality of lamp beads in the target light strip based on the control information and user attribute information; and controlling the plurality of lamp beads in the target light strip according to the determined light effect parameters. This allows the light effect parameters of each lamp bead in the light strip to be automatically determined for a particular user based on the control information and user attribute information. As a result, the embodiments in the application improve the efficiency in setting the light effect parameters to match user expectations.
    Type: Application
    Filed: July 16, 2024
    Publication date: February 27, 2025
    Inventors: Keqing Zhu, Dongjun Xiao, Yiyin Zhang, Qiushi Zhang, Zhun Ding, Jianxin Chen, Zhongkuai Liao
  • Publication number: 20250065881
    Abstract: The present application relates to an electric vehicle, a motor control method thereof, an apparatus and a storage medium. The motor control method of the electric vehicle of the present application includes: detecting a relative deformation of a transmission system between a driving gear and a wheel end of a motor; determining a first speed difference value of a first driving gear rotation speed and a first wheel end conversion rotation speed when the relative deformation is a first threshold, where the relative deformation being the first threshold value is used to indicate that the driving gear starts to disengage from a driven gear of the transmission system; determining an output torque of the motor according to the first speed difference value; and controlling the driving gear to perform a tooth approaching operation relative to the driven gear according the output torque.
    Type: Application
    Filed: July 28, 2022
    Publication date: February 27, 2025
    Applicants: Zhejiang ZEEKR Intelligent Technology Co., Ltd., VIRIDI E-MOBILITY TECHNOLOGY(NINGBO) CO.,LTD., Zhejiang Geely Holding Group Co., LTD.
    Inventors: Keqing SHEN, Yingguo MA, Qimiao CHEN
  • Patent number: 11625896
    Abstract: A face modeling method and apparatus, an electronic device and a computer-readable medium. Said method comprises: acquiring multiple depth images, the multiple depth images being obtained by photographing a target face at different irradiation angles; performing alignment processing on the multiple depth images to obtain a target point cloud image; using the target point cloud image to construct a three-dimensional model of the target face. The present disclosure alleviates the technical problems of poor robustness and low precision of the three-dimensional model constructed according to the three-dimensional model constructing method.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: April 11, 2023
    Assignee: BEIJING KUANGSHI TECHNOLOGY CO., LTD.
    Inventors: Liang Qiao, Keqing Chen, Haibin Huang
  • Patent number: 11461908
    Abstract: Disclosed are an image processing method and apparatus, and an image processing device. According to the image processing method and apparatus, and the image processing device, an infrared binocular camera collects images formed when a measured object is illuminated by a speckle pattern projected by a projection assembly to obtain a first image collected by a first camera and a second image collected by a second camera; and three-dimensional data of the measured object is determined according to a pair of images constituted by the first image and the second image. By means of the method, three-dimensional data of a measured object can be relatively accurately obtained through measurement, thereby improving precision and accuracy of measurement, and also precision requirements for a projection assembly are low, so that costs can be lowered.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: October 4, 2022
    Assignee: BEIJING KUANGSHI TECHNOLOGY CO., LTD.
    Inventors: Zhiri Cao, Mu Yang, Keqing Chen, Zhixian Liu, Yan Gao, Zhe Yang
  • Publication number: 20210319621
    Abstract: A face modeling method and apparatus, an electronic device and a computer-readable medium. Said method comprises: acquiring multiple depth images, the multiple depth images being obtained by photographing a target face at different irradiation angles; performing alignment processing on the multiple depth images to obtain a target point cloud image; using the target point cloud image to construct a three-dimensional model of the target face. The present disclosure alleviates the technical problems of poor robustness and low precision of the three-dimensional model constructed according to the three-dimensional model constructing method.
    Type: Application
    Filed: August 9, 2019
    Publication date: October 14, 2021
    Inventors: Liang QIAO, Keqing CHEN, Haibin HUANG
  • Publication number: 20210304428
    Abstract: Disclosed are an image processing method and apparatus, and an image processing device. According to the image processing method and apparatus, and the image processing device, an infrared binocular camera collects images formed when a measured object is illuminated by a speckle pattern projected by a projection assembly to obtain a first image collected by a first camera and a second image collected by a second camera; and three-dimensional data of the measured object is determined according to a pair of images constituted by the first image and the second image. By means of the method, three-dimensional data of a measured object can be relatively accurately obtained through measurement, thereby improving precision and accuracy of measurement, and also precision requirements for a projection assembly are low, so that costs can be lowered.
    Type: Application
    Filed: August 5, 2019
    Publication date: September 30, 2021
    Inventors: Zhiri CAO, Mu YANG, Keqing CHEN, Zhixian LIU, Yan GAO, Zhe YANG
  • Patent number: 10922533
    Abstract: The disclosure provides method for face-to-unlock, authentication device, and non-volatile storage medium. The method for face-to-unlock includes: obtaining to-be-verified expression data of a to-be-verified expression of a to-be-verified object; comparing the to-be-verified expression data with pre-stored expression data to obtain a comparison result; and in the case where the comparison result indicates that the to-be-verified expression data matches the pre-stored expression data, releasing the lock.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: February 16, 2021
    Assignees: BEIJING KUANGSHI TECHNOLOGY CO., LTD., MEGVII (BEIJING) TECHNOLOGY CO., LTD.
    Inventor: Keqing Chen
  • Patent number: 10867199
    Abstract: The application provides a data update method for face-to-unlock authentication, an authentication device and system, and a non-volatile storage medium. The data update method for face-to-unlock authentication includes: acquiring facial image data of a user to be unlock-authenticated; obtaining a plurality of candidate sets from the facial image data; determining whether there is target data satisfying a predetermined condition among the plurality of candidate sets; in the case where it is determined that there is target data satisfying the predetermined condition among the plurality of candidate sets, updating facial image data in a first set by using the target data, wherein a first unlock authentication is performed based on the facial image data in the first set.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: December 15, 2020
    Assignees: BEIJING KUANGSHI TECHNOLOGY CO., LTD., MEGVII (BEIJING) TECHNOLOGY CO., LTD.
    Inventor: Keqing Chen
  • Patent number: 10796178
    Abstract: A method for face liveness detection and a device for face liveness detection. The method for face liveness detection includes: performing an illumination liveness detection and obtaining an illumination liveness detection result; and determining whether or not a face to be verified passes the face liveness detection at least according to the illumination liveness detection result. Performing of the illumination liveness detection and obtaining of the illumination liveness detection result includes: acquiring a plurality of illumination images of the face to be verified, in which the plurality of illumination images are captured in a process of dynamically changing mode of illumination light irradiated on the face to be verified and are respectively corresponding to various modes of the illumination light; and obtaining the illumination liveness detection result according to a light reflection characteristic of the face to be verified in the plurality of illumination images.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: October 6, 2020
    Assignees: BEIJING KUANGSHI TECHNOLOGY CO., LTD., MEGVII (BEIJING) TECHNOLOGY CO., LTD.
    Inventors: Haoqiang Fan, Keqing Chen
  • Publication number: 20190122034
    Abstract: The disclosure provides method for face-to-unlock, authentication device, and non-volatile storage medium. The method for face-to-unlock includes: obtaining to-be-verified expression data of a to-be-verified expression of a to-be-verified object; comparing the to-be-verified expression data with pre-stored expression data to obtain a comparison result; and in the case where the comparison result indicates that the to-be-verified expression data matches the pre-stored expression data, releasing the lock.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 25, 2019
    Inventor: Keqing CHEN
  • Publication number: 20190108408
    Abstract: The application provides a data update method for face-to-unlock authentication, an authentication device and system, and a non-volatile storage medium. The data update method for face-to-unlock authentication includes: acquiring facial image data of a user to be unlock-authenticated; obtaining a plurality of candidate sets from the facial image data; determining whether there is target data satisfying a predetermined condition among the plurality of candidate sets; in the case where it is determined that there is target data satisfying the predetermined condition among the plurality of candidate sets, updating facial image data in a first set by using the target data, wherein a first unlock authentication is performed based on the facial image data in the first set.
    Type: Application
    Filed: September 28, 2018
    Publication date: April 11, 2019
    Inventor: Keqing CHEN
  • Publication number: 20180211096
    Abstract: Provided are a living-body detection method and device and a computer program product, belonging to the technical field of face recognition. The living-body detection method comprises: detecting a facial movement from a photograph image; according to said detected facial movement, controlling the display of a virtual object on a display screen; and, if said virtual object satisfies predetermined conditions, determining that the face in said photographed image is a living-body face. By controlling virtual-object display on the basis of face movements and performing living-body detection according to virtual-object display, it is possible to effectively prevent an attack using such means as photograph, video, 3D face model, or face mask.
    Type: Application
    Filed: June 30, 2015
    Publication date: July 26, 2018
    Inventors: Zhimin CAO, Keqing CHEN, Kai JIA
  • Publication number: 20180173980
    Abstract: A method for face liveness detection and a device for face liveness detection. The method for face liveness detection includes: performing an illumination liveness detection and obtaining an illumination liveness detection result; and determining whether or not a face to be verified passes the face liveness detection at least according to the illumination liveness detection result. Performing of the illumination liveness detection and obtaining of the illumination liveness detection result includes: acquiring a plurality of illumination images of the face to be verified, in which the plurality of illumination images are captured in a process of dynamically changing mode of illumination light irradiated on the face to be verified and are respectively corresponding to various modes of the illumination light; and obtaining the illumination liveness detection result according to a light reflection characteristic of the face to be verified in the plurality of illumination images.
    Type: Application
    Filed: December 13, 2017
    Publication date: June 21, 2018
    Inventors: Haoqiang FAN, Keqing CHEN