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Hierarchical low latency video compression

  • US 5,861,920 A
  • Filed: 11/08/1996
  • Issued: 01/19/1999
  • Est. Priority Date: 11/08/1996
  • Status: Expired due to Term
First Claim
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1. A method for reducing latency associated with transmitting a motion video sequence over a limited bandwidth channel, the video sequence having a plurality of frames derived from at least one video object, the method comprising:

  • encoding the at least one video object to generate a first representation of the video object having an associated first resolution;

    encoding transform parameters corresponding to a first one of the plurality of frames;

    transmitting the first representation and the transform parameters corresponding to the first frame over the limited bandwidth channel;

    decoding the first representation and the corresponding transform parameters to display the first frame so as to reduce latency;

    transmitting a residual representation of the at least one object; and

    combining the first representation with the residual representation to generate a subsequent representation having improved resolution for use in generation of subsequent ones of the plurality of frames in the motion video sequence.

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