Patents by Inventor PAO-CHI YEH

PAO-CHI YEH 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).

  • Patent number: 12112461
    Abstract: An adaptive image shading correction method and an adaptive image shading system are provided. The method includes: configuring an image capturing device to obtain a current frame; and configuring a processing unit to: divide the current frame into blocks; select block pairs from the blocks, in which each of the block pairs includes an inner block and an outer block; perform a filtering process for each of the block pairs to determine whether a brightness condition, a saturation condition, a hue similarity condition, and a sharpness similarity condition are met; in response to obtaining filtered block pairs, calculate a sum similarity threshold based on hue statistical data, a saturation difference, and a brightness difference; and use filtered blocks with individual thresholds less than the sum similarity threshold to calculate a shadow compensation value to adjust the current frame.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: October 8, 2024
    Assignee: REALTEK SEMICONDUCTOR CORP.
    Inventors: Sheng-Kai Lin, Min-Chen Hsu, Pao-Chi Yeh, Kai-Wen Lai, Chen-Chieh Yao
  • Publication number: 20230033975
    Abstract: An adaptive image shading correction method and an adaptive image shading system are provided. The method includes: configuring an image capturing device to obtain a current frame; and configuring a processing unit to: divide the current frame into blocks; select block pairs from the blocks, in which each of the block pairs includes an inner block and an outer block; perform a filtering process for each of the block pairs to determine whether a brightness condition, a saturation condition, a hue similarity condition, and a sharpness similarity condition are met; in response to obtaining filtered block pairs, calculate a sum similarity threshold based on hue statistical data, a saturation difference, and a brightness difference; and use filtered blocks with individual thresholds less than the sum similarity threshold to calculate a shadow compensation value to adjust the current frame.
    Type: Application
    Filed: May 25, 2022
    Publication date: February 2, 2023
    Inventors: SHENG-KAI LIN, MIN-CHEN HSU, PAO-CHI YEH, KAI-WEN LAI, CHEN-CHIEH YAO