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Computer method and apparatus for video conferencing

  • US 5,659,692 A
  • Filed: 05/08/1995
  • Issued: 08/19/1997
  • Est. Priority Date: 01/13/1992
  • Status: Expired due to Term
First Claim
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1. Apparatus for remote communication of images and graphics comprising:

  • a low bandwidth communication channel;

    a first workstation coupled to one end of the communication channel, the first workstation including a display monitor and an input device enabling user input of data to the first workstation end of the communication channel; and

    a second workstation coupled to an opposite end of the communication channel such that data is able to be transmitted between the first and second workstation, the second workstation including a display monitor and a computer graphics and animation assembly having (i) a preprocessor for determining control points and corresponding plane coordinate values of a subject along working axes in a sample view, the sample view having parameter values of each working axis indicative of the position of the subject in that sample view, and (ii) an image processor coupled to preprocessor and responsive to the associations between the coordinate values of the control points and the parameter values of a sample view, the image processor mapping the coordinate values of control points for sample positions of the subject in plural sample views to control point coordinate values for desired intermediate positions of the subject along each working axis to form intermediate views of the subject;

    in response to user input at the first workstation end of the communication channel of parameter values of desired views, the second workstation receiving the input parameter values across the communication channel and using the computer graphics and animation assembly forms the desired views and displays said views on the display monitor of the second workstation, such that the views are displayed remotely from the first workstation.

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