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System and method for enhancing speech activity detection using facial feature detection

  • US 9,318,129 B2
  • Filed: 07/18/2011
  • Issued: 04/19/2016
  • Est. Priority Date: 07/18/2011
  • Status: Active Grant
First Claim
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1. A method for detecting use of a mobile computing device, comprising:

  • identifying, a processor of a remote computing device, in an image feed from a surveillance camera;

    a user; and

    the mobile computing device;

    identifying, the remote computing device and within the image feed, an interaction between the user and the mobile computing device;

    receiving, at the remote computing device and while monitoring the image feed, an audio signal having a first voice signal associated with the user and a second voice signal associated with a non-user;

    identifying, at the remote computing device, an audio start event of the first voice signal based on a distance of the user to a screen of the mobile computing device and on mouth movement of the user in the image feed; and

    based on the audio start event, initiating processing of the first voice signal by the processor of the remote computing device.

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