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Method and apparatus for visual sensing of humans for active public interfaces

  • US 6,256,046 B1
  • Filed: 04/18/1997
  • Issued: 07/03/2001
  • Est. Priority Date: 04/18/1997
  • Status: Expired due to Term
First Claim
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1. A computerized interface for interacting with people, comprising:

  • a camera providing video input representing a region of an arbitrary physical environment as a sequence of images organized with respect to distance from the interface;

    means responsive to the video input for detecting changing distance between the interface and a person in the region from the sequence of images to determine intention of the person and hence identify the person as a target for interaction; and

    audio visual means for rendering audio and video communication directed to the detected person in a manner such that the detected person engages in human-like informational conversant communication with the interface, content of the rendered audio and video communication changing as a function of change in detected distance between the interface and person.

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