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Method and apparatus for coding a sectional video view captured by a camera at an end-point

  • US 7,679,648 B2
  • Filed: 09/22/2005
  • Issued: 03/16/2010
  • Est. Priority Date: 09/27/2004
  • Status: Active Grant
First Claim
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1. A method for providing a sectional video view with a controllable zoom, pan and tilt defined by a boundary within a general video view captured by a first camera of an end-point comprising:

  • consecutively capturing, at an encoding apparatus, video images of the general view which are processed by a coding process;

    creating, at the encoding apparatus, a first coded video signal representing the general view;

    generating, at the encoding apparatus, a predicted video image of at least a first current video image;

    subtracting, at the encoding apparatus, the predicted video image from the first current video image;

    receiving, at the encoding apparatus, a control signal defining the boundary within the general video view;

    extracting, at the encoding apparatus, a first set of pixel values lying within the boundary in the first current video image or in a second current video image captured by a second camera to create a sectional video view;

    extracting, at the encoding apparatus, a second set of pixel values from the predicted video image corresponding to the first set of pixel values;

    creating, at the encoding apparatus, a residual of the sectional video view by subtracting the second set of pixel values from said first set of pixel values; and

    creating, at the encoding apparatus, a second coded video signal representing the sectional video view by further compressing the residual according to the coding process.

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