Digitally-generated lighting for video conferencing applications
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United States of America Patent
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Nov 22, 2016
Grant Date -
Mar 17, 2016
app pub date -
Nov 20, 2015
filing date -
Feb 1, 2001
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method of improving the lighting conditions of a real scene or video sequence. Digitally generated light is added to a scene for video conferencing over telecommunication networks. A virtual illumination equation takes into account light attenuation, lambertian and specular reflection. An image of an object is captured, a virtual light source illuminates the object within the image. In addition, the object can be the head of the user. The position of the head of the user is dynamically tracked so that an three-dimensional model is generated which is representative of the head of the user. Synthetic light is applied to a position on the model to form an illuminated model.
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Cited Art Landscape
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