Patents by Inventor Xiaoming Bu

Xiaoming Bu 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: 11367387
    Abstract: A method and an image processing device for mura detection on a display are proposed. The method includes the following steps. A compressed DeMura table corresponding to the display panel is obtained. Decompression is performed on the compressed DeMura table to generate a decompressed DeMura table. Upsampling is performed on the decompressed DeMura table to generate a reconstructed DeMura table. Mura compensation is performed on the display panel based on the reconstructed DeMura table.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: June 21, 2022
    Assignee: Novatek Microelectronics Corp.
    Inventors: Wenhui Yu, Xiaoming Bu, Chih-Yuan Yang
  • Publication number: 20220189387
    Abstract: A method and an image processing device for mura detection on a display are proposed. The method includes the following steps. A compressed DeMura table corresponding to the display panel is obtained. Decompression is performed on the compressed DeMura table to generate a decompressed DeMura table. Upsampling is performed on the decompressed DeMura table to generate a reconstructed DeMura table. Mura compensation is performed on the display panel based on the reconstructed DeMura table.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 16, 2022
    Applicant: Novatek Microelectronics Corp.
    Inventors: Wenhui Yu, Xiaoming Bu, Chih-Yuan Yang
  • Patent number: 10890764
    Abstract: A method and a system for video frame processing are proposed. The method is applicable to a system including a computing device and a head-mounted display having a motion sensor, a processor, and a display. The method includes the following steps. A sequence of rendered video frames including a first frame and a second frame subsequent to the first frame is received by the processor from the computing device. A first head movement of the head-mounted display is obtained from the motion sensor by the processor, where the first head movement is associated with the first frame. An interpolated frame is rendered according to the first frame, the second frame, and the first head movement and displayed subsequent to the first frame and prior to the second frame on the display by the processor.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: January 12, 2021
    Assignee: Novatek Microelectronics Corp.
    Inventors: Xianbo Tan, Xiaoming Bu, YuanJia Du
  • Publication number: 20200285053
    Abstract: A method and a system for video frame processing are proposed. The method is applicable to a system including a computing device and a head-mounted display having a motion sensor, a processor, and a display. The method includes the following steps. A sequence of rendered video frames including a first frame and a second frame subsequent to the first frame is received by the processor from the computing device. A first head movement of the head-mounted display is obtained from the motion sensor by the processor, where the first head movement is associated with the first frame. An interpolated frame is rendered according to the first frame, the second frame, and the first head movement and displayed subsequent to the first frame and prior to the second frame on the display by the processor.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 10, 2020
    Applicant: Novatek Microelectronics Corp.
    Inventors: Xianbo Tan, Xiaoming Bu, YuanJia Du
  • Patent number: 10491896
    Abstract: The disclosure proposes a method of fixed-rate line-based embedded video compression and an image processing apparatus using the same method. The method includes at least the following steps. A current encoding frame is received. Pixels in a current encoding frame are grouped on a line-by-line basis, and the grouped pixels are packed into pixel segments. Complexity information of a current pixel segment is calculated according to the pixels therein and neighboring pixels thereof. The current pixel segment is respectively encoded in a differential pulse-coding modulation (DPCM) mode and a truncation mode to generate a DPCM bitstream and a truncated bitstream according to a quantization parameter (QP). Either the DPCM bitstream or the truncated bitstream is selected and outputted according to the complexity information. An amount of bits used by the current pixel segment is feedback to calculate a new QP corresponding to a next pixel segment to be processed.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: November 26, 2019
    Assignee: Novatek Microelectronics Corp.
    Inventors: Xiaoming Bu, Jian-Wen Chen, Po-Chin Hu
  • Publication number: 20180213228
    Abstract: The disclosure proposes a method of fixed-rate line-based embedded video compression and an image processing apparatus using the same method. The method includes at least the following steps. A current encoding frame is received. Pixels in a current encoding frame are grouped on a line-by-line basis, and the grouped pixels are packed into pixel segments. Complexity information of a current pixel segment is calculated according to the pixels therein and neighboring pixels thereof. The current pixel segment is respectively encoded in a differential pulse-coding modulation (DPCM) mode and a truncation mode to generate a DPCM bitstream and a truncated bitstream according to a quantization parameter (QP). Either the DPCM bitstream or the truncated bitstream is selected and outputted according to the complexity information. An amount of bits used by the current pixel segment is feedback to calculate a new QP corresponding to a next pixel segment to be processed.
    Type: Application
    Filed: February 15, 2017
    Publication date: July 26, 2018
    Applicant: Novatek Microelectronics Corp.
    Inventors: Xiaoming Bu, Jian-Wen Chen, Po-Chin Hu