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DETECTING AND LABELING PLACES USING RUNTIME CHANGE-POINT DETECTION AND PLACE LABELING CLASSIFIERS

  • US 20110229031A1
  • Filed: 03/15/2011
  • Published: 09/22/2011
  • Est. Priority Date: 03/16/2010
  • Status: Active Grant
First Claim
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1. A computer implemented method for labeling places captured in a video stream, the method comprising:

  • receiving a video stream comprising multiple digital representations of images;

    generating a measurement stream representing the video stream, wherein the measurement stream comprises one or more image histograms of the video stream;

    segmenting the measurement stream into a plurality of segments corresponding to types of places in the video stream based on the histograms of the videos stream, wherein the boundary between two adjacent segments represents a change-point of the measurement stream at a time-step;

    computing probability distributions of the segments over a plurality of place classifiers, wherein probability of a segment represents a likelihood that the segment is classified by a place classifier of the plurality of the place classifiers; and

    generating place labels for the types of places in video stream based on probabilities of change-points of the measurement stream, wherein the change-points are detected based on the probability distributions of the segments over the plurality of the place classifiers.

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