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Hierarchical hybrid shot change detection method for MPEG-compressed video

  • US 20010021268A1
  • Filed: 03/06/2001
  • Published: 09/13/2001
  • Est. Priority Date: 03/07/2000
  • Status: Active Grant
First Claim
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1. A hierarchical hybrid shot change detection method for MPEG-compressed video for detecting a shot change, by hierarchically applying a global color histogram based method and a macro block type distribution based method, comprising:

  • detecting a shot change candidate region by using the global color distribution difference among the frames by the color histogram;

    detecting an abridged shot change candidate region by using the difference of the global color histogram among adjacent I/P, P/P, P/I frames after additionally decoding the P frames existed in the detected candidate region;

    finding a distribution characteristic of an intra coded block and a reference type and a reference pattern of the each B frame by decoding the B frames in the detected abridged shot change candidate region at the macro block level; and

    detecting a hard cut occurrence by using the distribution characteristic of the intra coded block and reference type and reference pattern.

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