Patents by Inventor Xiaowang CAI

Xiaowang CAI 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: 20230105139
    Abstract: Embodiments of the present application disclose an infrared temperature measurement method, apparatus, device, and storage medium, which relate to the field of image processing. The method comprises: determining a measurement temperature of a to-be-measured target based on a grayscale image captured to obtain a first measurement temperature; determining key point coordinates of the target based on a target image; determining a first distance based on the key point coordinates and configuration information of an infrared temperature measurement device, the first distance is a distance between the target and the infrared temperature measurement device; determining an actual temperature of the target based on the first measurement temperature and the first distance.
    Type: Application
    Filed: March 4, 2021
    Publication date: April 6, 2023
    Applicant: Hangzhou Hikvision Digital Technology Co., Ltd.
    Inventor: Xiaowang CAI
  • Patent number: 11017552
    Abstract: A measurement method and apparatus are provided. The measurement method is applicable to an image acquisition device, and includes: acquiring image data to generate an image data file (S101); capturing an object to be measured in an image corresponding to the image data file (S102); obtaining a first distance between a horizontal line going through a lowest point of the object to be measured in the image and a horizontal line going through a center point of the image (S103); and calculating a second distance between the object to be measured and the image acquisition device based on the first distance, an installation height of the image acquisition device and a pitch angle of the image acquisition device (S104). Compared with the relevant art, the image acquisition device can measure the distance to an object to be measured while achieving relatively low production cost and easy installation. As a result, actual demands can be better satisfied.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: May 25, 2021
    Assignee: HANGZHOU HIKVISION DIGITAL TECHNOLOGY CO., LTD
    Inventors: Xiaowang Cai, Fei Xiao, Hai Yu, Meng Fan
  • Publication number: 20190172214
    Abstract: A measurement method and apparatus are provided. The measurement method is applicable to an image acquisition device, and includes: acquiring image data to generate an image data file (S101); capturing an object to be measured in an image corresponding to the image data file (S102); obtaining a first distance between a horizontal line going through a lowest point of the object to be measured in the image and a horizontal line going through a center point of the image (S103); and calculating a second distance between the object to be measured and the image acquisition device based on the first distance, an installation height of the image acquisition device and a pitch angle of the image acquisition device (S104). Compared with the relevant art, the image acquisition device can measure the distance to an object to be measured while achieving relatively low production cost and easy installation. As a result, actual demands can be better satisfied.
    Type: Application
    Filed: May 31, 2017
    Publication date: June 6, 2019
    Inventors: Xiaowang CAI, Fei XIAO, Hai YU, Meng FAN