System, method, and apparatus for multiple face tracking

  • US 6,700,999 B1
  • Filed: 06/30/2000
  • Issued: 03/02/2004
  • Est. Priority Date: 06/30/2000
  • Status: Active Grant
First Claim
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1. A method of tracking a plurality of face candidate regions in a digital video sequence comprising:

  • receiving a plurality of frames of video data;

    a first operating mode, including constructing a score map based at least in part on one of said frames of video data, producing a mask for each frame of said plurality of frames based on said score map, said mask indicating a plurality of face candidate regions, and filtering said mask to remove an indication of at least one among the plurality of face candidate regions; and

    a standby mode, wherein the first operating mode is practiced to track face candidate regions for each frame, and the standby mode performs face-tracking operations only on a portion of the frames of video data, said standby mode being operational when a specified number of consecutive frames have been processed without any face candidate regions being located.

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