Patents Assigned to Netergu Networks
  • Patent number: 6205177
    Abstract: Coding and decoding of video images includes the use of multiple reference pictures and determining motion vector and time delay information for the video images. Video images are quantized and transmitted with the motion vector and time delay information from a first station to a second station. A new video image is predicted for display at the second station as function of the motion parameter codes and multiple reference pictures. The invention may be used in connection with a video communication and/or video conferencing system as a long-term memory predictor to improve image-coding efficiencies and motion compensation. The long-term memory prediction extends the spacial displacement utilized in block-based hybrid video coding by a variable time delay. The arrangement and method employ a proposed bit allocation scheme to provide increased coding efficiencies of the video coder.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: March 20, 2001
    Assignee: Netergu Networks
    Inventors: Bernd Girod, Thomas Wiegand