Patents by Inventor Yiyi SHAO

Yiyi SHAO 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: 20240107180
    Abstract: The present disclosure provides methods and systems for image correction. The method may include obtaining a first frame captured by an image acquisition device, a second frame captured by the image acquisition device prior to the first frame, and a correction coefficient of the first frame; determining, based on the first frame and the second frame, whether a gamma curve of the image acquisition device has been adjusted; in response to determining that the gamma curve of the image acquisition device has been adjusted, determining an adjustment coefficient of the correction coefficient based on the first frame and the second frame; and adjusting, based on the adjustment coefficient, the correction coefficient of the first frame.
    Type: Application
    Filed: December 3, 2023
    Publication date: March 28, 2024
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventor: Yiyi SHAO
  • Patent number: 11743599
    Abstract: The present disclosure relates to systems and methods for automatically adjusting an aperture of a camera. The methods may include obtaining at least two parameters out of three parameters of the camera, the three parameters including a luminance parameter, an exposure parameter, and a focal length parameter; determining a step length of the aperture based on the at least two parameters; and automatically adjusting the aperture of the camera based on the step length.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: August 29, 2023
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Yiyi Shao, Erli Lu, Mingzhu Chen
  • Patent number: 11546520
    Abstract: An imaging control method is provided. The method may include obtaining a current image generated based on an exposure parameter, wherein the current image includes a plurality of pixels; determining a plurality of target pixels or target pixel groups from at least portion of the plurality of pixels; determining a statistic representation based on target pixels or target pixel groups; determining a characteristic feature based on the statistic representation; and, updating the exposure parameter, based on the characteristic feature, to generate an updated image.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: January 3, 2023
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventor: Yiyi Shao
  • Patent number: 11240443
    Abstract: A system is provided in the present disclosure. The system may determine a first exposure time of a visible light sensor of an image acquisition device according to ambient light at a scene to be photographed. The image acquisition device may include the visible light sensor and an infrared light sensor. The system may also actuate the image acquisition device to simultaneously capture a visible light image and at least one infrared light image of the scene. The visible light image may be captured using a visible light sensor with the first exposure time. The at least one infrared light image may be captured using an infrared light sensor. The system may also generate a WDR image by processing the at least one infrared light image, and generate a target image of the scene by fusing the visible light image and the WDR image.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: February 1, 2022
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Jun Zhao, Yiyi Shao, Guangyue Shen, Jianhua Zhan
  • Publication number: 20210392257
    Abstract: The present disclosure relates to systems and methods for automatically adjusting an aperture of a camera. The methods may include obtaining at least two parameters out of three parameters of the camera, the three parameters including a luminance parameter, an exposure parameter, and a focal length parameter; determining a step length of the aperture based on the at least two parameters; and automatically adjusting the aperture of the camera based on the step length.
    Type: Application
    Filed: August 31, 2021
    Publication date: December 16, 2021
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Yiyi SHAO, Erli LU, Mingzhu CHEN
  • Publication number: 20210329159
    Abstract: A system is provided in the present disclosure. The system may determine a first exposure time of a visible light sensor of an image acquisition device according to ambient light at a scene to be photographed. The image acquisition device may include the visible light sensor and an infrared light sensor. The system may also actuate the image acquisition device to simultaneously capture a visible light image and at least one infrared light image of the scene. The visible light image may be captured using a visible light sensor with the first exposure time. The at least one infrared light image may be captured using an infrared light sensor. The system may also generate a WDR image by processing the at least one infrared light image, and generate a target image of the scene by fusing the visible light image and the WDR image.
    Type: Application
    Filed: May 20, 2021
    Publication date: October 21, 2021
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Jun ZHAO, Yiyi SHAO, Guangyue SHEN, Jianhua ZHAN
  • Publication number: 20210281735
    Abstract: An imaging control method is provided. The method may include obtaining a current image generated based on an exposure parameter, wherein the current image includes a plurality of pixels; determining a plurality of target pixels or target pixel groups from at least portion of the plurality of pixels; determining a statistic representation based on target pixels or target pixel groups; determining a characteristic feature based on the statistic representation; and, updating the exposure parameter, based on the characteristic feature, to generate an updated image.
    Type: Application
    Filed: May 25, 2021
    Publication date: September 9, 2021
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventor: Yiyi SHAO