Rate Distortion Criteria (epo) Patents (Class 375/E7.153)
  • Patent number: 12088932
    Abstract: Methods and apparatus for capturing, communicating and using image data to support virtual reality experiences are described. Images, e.g., frames, are captured at a high resolution but lower frame rate than is used for playback. Interpolation is applied to captured frames to generate interpolated frames. Captured frames, along with interpolated frame information, are communicated to the playback device. The combination of captured and interpolated frames correspond to a second frame playback rate which is higher than the image capture rate. Cameras operate at a high image resolution but slower frame rate than images could be captured with the same cameras at a lower resolution. Interpolation is performed prior to delivery to the user device with segments to be interpolated being selected based on motion and/or lens FOV information. A relatively small amount of interpolated frame data is communicated compared to captured frame data for efficient bandwidth use.
    Type: Grant
    Filed: February 13, 2023
    Date of Patent: September 10, 2024
    Assignee: Nevermind Capital LLC
    Inventors: Ramesh Panchagnula, David Cole, Alan Moss
  • Patent number: 11663994
    Abstract: A device for driving a display panel includes a display driving integrated circuit (IC) configured to transmit image data to the display panel, a display control IC configured to receive compressed image data from a host and including a timing controller configured to control the display driving IC, and a non-volatile memory configured to transmit data to and receive data from the display control IC, and configured to store driving parameters necessary for operation of the display driving IC.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: May 30, 2023
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Jin Seok Yang, Jung Hoon Sul, Sang Kyung Kim, Dae Young Yoo, Jae Won Kim
  • Patent number: 11665340
    Abstract: A disclosed computer-implemented method may include (1) selecting, from a video stream, a reference frame and a current frame, (2) collecting a reference histogram of the reference frame and a current histogram of the current frame, and (3) generating a smoothed reference histogram by applying a smoothing function to at least a portion of the reference histogram. In some examples, the computer-implemented method may also include (1) determining a similarity metric between the smoothed reference histogram and the current histogram and, (2) when the similarity metric is greater than a threshold value, applying weighted prediction during a motion estimation portion of an encoding of the video stream. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: May 30, 2023
    Assignee: Meta Platforms, Inc.
    Inventors: Junqiang Lan, Guogang Hua, Harikrishna Madadi Reddy, Chung-Fu Lin, Xing Cindy Chen, Sujith Srinivasan