- Patent Title: Digitally-generated lighting for video conferencing applications
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Application No.: US13303325Application Date: 2011-11-23
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Publication No.: US08542943B2Publication Date: 2013-09-24
- Inventor: Andrea Basso , Eric Cosatto , David Crawford Gibbon , Hans Peter Graf , Shan Liu
- Applicant: Andrea Basso , Eric Cosatto , David Crawford Gibbon , Hans Peter Graf , Shan Liu
- Applicant Address: US GA Atlanta
- Assignee: AT&T Intellectual Property II, L.P.
- Current Assignee: AT&T Intellectual Property II, L.P.
- Current Assignee Address: US GA Atlanta
- Main IPC: G06K9/40
- IPC: G06K9/40 ; G06K9/00 ; H04N7/14

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.
Public/Granted literature
- US20120069139A1 DIGITALLY-GENERATED LIGHTING FOR VIDEO CONFERENCING APPLICATIONS Public/Granted day:2012-03-22
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