Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2005-08-02
2005-08-02
Diep, Nhon T (Department: 2613)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C382S181000
Reexamination Certificate
active
06925122
ABSTRACT:
A method for tracking the location of the tip of the nose with a video camera, and a hands-free computer input device based thereon have been described. According to this invention, a convex shape such as the shape of the tip of the nose, is a robust object suitable for precise and smooth location tracking purposes. The disclosed method and apparatus are substantially invariant to changes in head pose, user preferred seating distances and brightness of the lighting conditions. The location of the nose can be tracked with pixel and sub-pixel accuracy.
REFERENCES:
patent: 5353355 (1994-10-01), Takagi et al.
patent: 5374958 (1994-12-01), Yanagihara
patent: 5686942 (1997-11-01), Ball
patent: 5852669 (1998-12-01), Eleftheriadis et al.
patent: 5912721 (1999-06-01), Yamaguchi et al.
patent: 5999877 (1999-12-01), Takahashi et al.
patent: 6394557 (2002-05-01), Bradski
patent: 6580810 (2003-06-01), Yang et al.
patent: 6597736 (2003-07-01), Fadel
patent: 2002/0081032 (2002-06-01), Chen et al.
Mohan, A.; Papageorgiou, C.; Poggio, T.; Example-Based Object Detection in Images by Components; IEEE Transactions on Pattern Analysis & Machine Intelligence; vol. 23, No. 4; pps. 349-361; Apr. 2001.
Stern, H.; Efros, B.; Adaptive Color Space Switching for Face Tracking in Multi-Colored Lighting Environments; Ben-Gurion University of the Negev; pps. 1-6.
Shakhnarovich, G.; Viola, P.; Moghaddam, B.; A Unified Learning Framework for Real Time Face Detection & Classification.
Kawato, S.; Tetsutani, N.; Detection & Tracking of Eyes for Gaze-Camera Control; ATR Media Information Science Laboratories.
Hjelmas, E.; Face Detection: A Survey; University of Oslo; pps. 236-274; Apr. 2001.
Yang, M.; Kriegman, D.; Ahuja, N.; Detecting Faces in Images: A Survey; IEEE Transactions on Pattern Analysis & Machine Intelligence; vol. 24, No. 1, pps. 35-58; Jan. 2002.
Diep Nhon T
Jones Tullar & Cooper PC
National Research Council
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