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Adaptive switching of views for a video conference that involves a presentation apparatus

  • US 9,001,183 B2
  • Filed: 06/15/2012
  • Issued: 04/07/2015
  • Est. Priority Date: 06/15/2012
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving a first signal that includes a video signal derived from a video camera that is viewing a room during a conference session in which a person is presenting information on a presentation apparatus, wherein the video signal provides a perspective view of the presentation apparatus in the room and the presentation apparatus is an electronic whiteboard;

    determining whether the person is outside an operable region with respect to the presentation apparatus;

    switching between the first signal and a second signal representing content being displayed on the presentation apparatus that is, or is derived from, a digital image signal generated by the electronic whiteboard for content to be displayed on the electronic whiteboard during the conference session for output and transmission to other conference endpoints of the conference session, such that when it is determined that the person is outside the operable region with respect to the presentation apparatus, the second signal is selected for output, and when it is determined that the person is inside the operable region with respect to the presentation apparatus, the first signal is selected for output; and

    processing the video signal to replace a portion of video frames of the video signal containing content displayed on the electronic whiteboard with a warped version of the digital image signal generated by the electronic whiteboard so as to display content appearing on the electronic whiteboard in the perspective view when the first signal is selected for output.

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