Patents by Inventor Huaren Liu

Huaren 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).

  • Method and device for enhancing edge of image and digital camera
    Patent number: 9836823
    Abstract: A method and a device for enhancing an edge of an image are provided. The method includes: obtaining a first gradient value of a pixel; determining whether the pixel is at a rough edge according to the first gradient value; if yes, obtaining a first edge enhancement value of the pixel and obtaining a first edge enhancement result of the pixel according to the first edge enhancement value; if no, obtaining a second gradient value of the pixel; determining whether the pixel is at a tiny edge according to the second gradient value; if yes, obtaining a second edge enhancement value of the pixel and obtaining a second edge enhancement result of the pixel according to the second edge enhancement value; if no, obtaining the pixel value of the pixel as the edge enhancement result of the pixel; and repeating above steps until each pixel of the image is processed.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: December 5, 2017
    Assignee: BYD COMPANY LIMITED
    Inventors: Huaren Liu, Shuijiang Mao, Jingjun Fu, Wei Feng
  • Method and device for obtaining high dynamic range image
    Patent number: 9509918
    Abstract: A method and a device for obtaining a high dynamic range image are provided. The method includes: obtaining a pixel value of each pixel in two images of a same scene; determining a brightness value of each pixel in the two images; determining an objective brightness value of each pixel in a combined image combining the two images; determining a color value of each pixel in the two images; determining a color value of each pixel in the combined image; correcting the color value of each pixel in the combined image so as to obtain a corrected color value of each pixel in the combined image; determining a pixel value of each pixel in the combined image; and obtaining a high dynamic range image.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: November 29, 2016
    Assignee: BYD Company Limited
    Inventors: Huaren Liu, Shuijiang Mao, Jingjun Fu, Wei Feng
  • METHOD AND DEVICE FOR ENHANCING EDGE OF IMAGE AND DIGITAL CAMERA
    Publication number: 20160117804
    Abstract: A method and a device for enhancing an edge of an image are provided. The method includes: obtaining a first gradient value of a pixel; determining whether the pixel is at a rough edge according to the first gradient value; if yes, obtaining a first edge enhancement value of the pixel and obtaining a first edge enhancement result of the pixel according to the first edge enhancement value; if no, obtaining a second gradient value of the pixel; determining whether the pixel is at a tiny edge according to the second gradient value; if yes, obtaining a second edge enhancement value of the pixel and obtaining a second edge enhancement result of the pixel according to the second edge enhancement value; if no, obtaining the pixel value of the pixel as the edge enhancement result of the pixel; and repeating above steps until each pixel of the image is processed.
    Type: Application
    Filed: May 16, 2014
    Publication date: April 28, 2016
    Inventors: HUAREN LIU, SHUIJIANG MAO, JINGJUN FU, WEI FENG
  • METHOD AND DEVICE FOR OBTAINING HIGH DYNAMIC RANGE IMAGE
    Publication number: 20160057333
    Abstract: A method and a device for obtaining a high dynamic range image are provided. The method includes: obtaining a pixel value of each pixel in two images of a same scene; determining a brightness value of each pixel in the two images; determining an objective brightness value of each pixel in a combined image combining the two images; determining a color value of each pixel in the two images; determining a color value of each pixel in the combined image; correcting the color value of each pixel in the combined image so as to obtain a corrected color value of each pixel in the combined image; determining a pixel value of each pixel in the combined image; and obtaining a high dynamic range image.
    Type: Application
    Filed: April 21, 2014
    Publication date: February 25, 2016
    Inventors: Huaren Liu, Shuijiang Mao, Jingjun Fu, Wei Feng