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Method and apparatus for estimating channel induced distortion

  • US 9,154,795 B2
  • Filed: 01/17/2006
  • Issued: 10/06/2015
  • Est. Priority Date: 01/18/2005
  • Status: Expired due to Fees
First Claim
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1. A method in a distortion calculator computer for estimating distortion for an inter-coded image, comprising:

  • accessing with the distortion calculator computer an average channel distortion estimated for a previously coded image; and

    calculating with the distortion calculator computer an average channel distortion for the inter-coded image as said average channel distortion estimated for the previously coded image scaled by a scaling factor (1-P)(a(1−

    β

    )+β

    )+hP, where P represents a packet loss rate, β

    represents an intra rate, a is a parameter associated with inter-prediction, c is a parameter associated with intra-prediction, and h is a parameter associated with concealment,where;

    the inter-coded image is encoded with inter-prediction and temporal concealment with non-integer motion vectors, and without intra-prediction and deblocking filtering,the inter-coded image is encoded with inter-prediction and temporal concealment with non-integer motion vectors, with intra-prediction, and without deblocking filtering, orthe inter-coded image is encoded with inter-prediction and temporal concealment with non-integer motion vectors, and with intra-prediction and deblocking filtering.

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