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Device, method and program for measuring number of passengers

  • US 9,760,784 B2
  • Filed: 10/10/2013
  • Issued: 09/12/2017
  • Est. Priority Date: 10/26/2012
  • Status: Active Grant
First Claim
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1. A device for measuring a number of passengers, comprising:

  • an image obtaining unit, implemented by a processor, for obtaining images;

    a person detecting unit, implemented by the processor, for detecting persons in each of the images and generating positions of detected persons in each of the images, the vehicle being a target for measuring a number of persons;

    a view determining unit, implemented by the processor, for outputting a view determination result for each of the images, the view determination result being information describing the position of the vehicle with respect to a capture position of the respective image;

    a seat position obtaining unit, implemented by the processor, for obtaining seat positions at which the persons may be on board in the vehicle, based on geometric constraints between the seat positions and the view determination result for each of the images;

    an in-vehicle position estimating unit, implemented by the processor, for estimating, for each of the images, from a comparison between the positions of detected persons and the seat positions an in-vehicle position estimation result representing the seat positions at which the detected persons are seated in the vehicle; and

    a result integrating unit, implemented by the processor, for integrating the plurality of in-vehicle position estimation results and determining a number of passengers in the vehicle from the integrated in-vehicle position estimation results.

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