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Automatic-tracking camera apparatus

  • US 9,491,359 B2
  • Filed: 04/05/2012
  • Issued: 11/08/2016
  • Est. Priority Date: 09/01/2006
  • Status: Expired due to Fees
First Claim
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1. An automatic-tracking apparatus comprising:

  • an image pickup unit adapted to acquire an image;

    an actuator adapted to change a position of said image pickup unit;

    a position detecting unit adapted to detect the position of said image pickup unit;

    a position instruction value generation unit adapted to generate a position instruction value, for instructing a target position of said image pickup unit, realizing after a lapse of a predetermined time period from when said image pickup unit has acquired the image, on the basis of the image acquired by said image pickup unit and the position of said image pickup unit detected by said position detecting unit;

    a speed prediction unit adapted to predict a speed of a tracking target object realizing after a lapse of a predetermined time period from when said image pickup unit has acquired the image, using previously stored position information and speed information of the tracking target object, the position information and speed information obtained from multiple acquired images; and

    a control unit adapted to control said actuator so that said image pickup unit reaches the position indicated by the position instruction value realizing after a lapse of a predetermined time period from when said image pickup unit has acquired the image, and the speed of said image pickup unit realizing after a lapse of a predetermined time period from when said image pickup unit has acquired the image corresponds to the speed predicted by said speed prediction unit,wherein said control unit is adapted to control said actuator so that said image pickup unit is displaced at a constant acceleration during the period from the start timing of image acquisition by said image pickup unit to the next start timing of image acquisition.

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