Multiple camera control system

Image analysis – Applications – Target tracking or detecting

Reexamination Certificate

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C382S154000

Reexamination Certificate

active

07555142

ABSTRACT:
A multiple camera tracking system for interfacing with an application program running on a computer is provided. The tracking system includes two or more video cameras arranged to provide different viewpoints of a region of interest, and are operable to produce a series of video images. A processor is operable to receive the series of video images and detect objects appearing in the region of interest. The processor executes a process to generate a background data set from the video images, generate an image data set for each received video image, compare each image data set to the background-data set to produce a difference map for each image data set, detect a relative position of an object of interest within each difference map, and produce an absolute position of the object of interest from the relative positions of the object of interest and map the absolute position to a position indicator associated with the application program.

REFERENCES:
patent: 4144449 (1979-03-01), Funk et al.
patent: 4247767 (1981-01-01), O'Brien et al.
patent: 4507557 (1985-03-01), Tsikos
patent: 4742221 (1988-05-01), Sasaki et al.
patent: 4746770 (1988-05-01), McAvinney
patent: 4782328 (1988-11-01), Denlinger
patent: 4818826 (1989-04-01), Kimura
patent: 5097516 (1992-03-01), Amir
patent: 5109435 (1992-04-01), Lo et al.
patent: 5317140 (1994-05-01), Dunthorn
patent: 5483603 (1996-01-01), Luke et al.
patent: 5502568 (1996-03-01), Ogawa et al.
patent: 5534917 (1996-07-01), MacDougall
patent: 5581276 (1996-12-01), Cipolla et al.
patent: 5638092 (1997-06-01), Eng et al.
patent: 5769640 (1998-06-01), Jacobus et al.
patent: 5844392 (1998-12-01), Peurach et al.
patent: 5907328 (1999-05-01), Brush, II et al.
patent: 5911004 (1999-06-01), Chuchi et al.
patent: 5936615 (1999-08-01), Waters
patent: 6002808 (1999-12-01), Freeman
patent: 6008798 (1999-12-01), Mato, Jr. et al.
patent: 6072494 (2000-06-01), Nguyen
patent: 6075895 (2000-06-01), Qiao et al.
patent: 6100538 (2000-08-01), Ogawa
patent: 6173066 (2001-01-01), Peurach et al.
patent: 6191773 (2001-02-01), Maruno et al.
patent: 6208330 (2001-03-01), Hasegawa et al.
patent: 6215890 (2001-04-01), Matsuo et al.
patent: 6222465 (2001-04-01), Kumar et al.
patent: 6256033 (2001-07-01), Nguyen
patent: 6335724 (2002-01-01), Takekawa et al.
patent: 6414671 (2002-07-01), Gillespie et al.
patent: 6421042 (2002-07-01), Omura et al.
patent: 6429856 (2002-08-01), Omura et al.
patent: 6531999 (2003-03-01), Trajkovic
patent: 6563491 (2003-05-01), Omura
patent: 6594023 (2003-07-01), Omura et al.
patent: 6993179 (2006-01-01), Weinshall et al.
patent: 2001/0019325 (2001-09-01), Takekawa
patent: 2001/0020933 (2001-09-01), Maggioni
patent: 2001/0022579 (2001-09-01), Hirabayashi
patent: 2001/0026268 (2001-10-01), Ito
patent: 2002/0015024 (2002-02-01), Westerman et al.
patent: 2003/0112228 (2003-06-01), Gillespie et al.
patent: 2004/0012573 (2004-01-01), Morrison et al.
patent: 198 10 452 (1998-12-01), None
patent: 0 905 644 (1999-03-01), None
patent: 57-211637 (1982-12-01), None
patent: 8-240407 (1996-09-01), None
patent: 9-91094 (1997-04-01), None
patent: 9-319501 (1997-12-01), None
patent: WO 99/35633 (1999-07-01), None
patent: WO 99/40562 (1999-08-01), None
Z. Zhang; “Determining the Epipolar Geometry and its Uncertainty”; A Review, The International Journal of Computer Vision, 1997, INRIA SophiaAntipolis, France, Jul. 1996, pp. 161-195.
C. Urmson; “A Comparison of Pt. Grey Research's Digiclops and Videre Design's Small Vision System for Sensing on the Hyperion Robot”; ;Nov. 2000 (http://www.videredesign.com/StereoComparison.pdf).
M. Okutomi and T. Kanda. “A Multiple-baseline Stereo”, PAMI 15(4), Apr. 1993, pp. 355-363.
D. Scharstein and R. Szeliski, “Stereo Matching with Non-Linear Diffusion” which was published in Proceedings of the 1996 Conference on Computer Vision and Pattern Recognition (CVPR '96) middlebury.edu/˜schar/papers/diffusion.ps.gz.
G. Morrison et al. “Machine Vision Passive Touch Technology for Interactive Displays” SID 01 Digest; Jun. 2001, pp. 74-77.
XP-002229564—“Robust Finger Tracking with Multiple Cameras”; Cullen Jennings, Universtiy of British Columbia, Vancouver, B.C, Canada; 1999; pp. 152-160.
XP-002229565—“Wallflower: Principles and Practice of Background Maintenance”; Kentaro Toyama et al.; Microsoft Research; Redmond, WA; 1999; vol. 1 —pp. 255-261.
XP—002229566—“Background Modeling for Segmentation of Video-Rate Stereo Sequences”; Christopher Eveland, et al.; Computer Science Department, University of Rochester, Rochester, NY; 1998; pp. 266-271.
Bud K. Funk,CCDs in Optical Touch Panels Deliver High Resolution; Sep. 1980; Electronic Design.
Z. Zhang; “A Flexible New Technique for Camera Calibration”;IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 22, No. 11, pp. 1330-1334, Dec. 2, 1998, Microsoft Research; http://research.microsoft.com/˜zhang.
Point Grey Research Inc. Digiclops ( http://www.ptgrey.com/ ), 2000, PGR, Inc.
Small Vision System Stereo Developer Kit ( http://www.videredesign.com ), Feb. 2, 2001.
C. Jennings. “Robust Finger Tracking with Multiple Cameras” Proceeding, International Workshop on Recognition, Analysis, and Tracking of Faces and Gestures in Real-Time Systems, Jul. 20, 1999, (http://www.cs.ubc.ca/spider/jennings/ratfg-rts99/cj99.html).
XP-10378301— “Detection and Estimation of Pointing Gestures in Dense Disparity Maps”; Nebojsa Jojie et al.; Fourth IEEE International Conference on Automatic Face and Gesture Recognition, Mar. 28-30, 2000, ECE Dept. & Beckman Institute; University of Illinois, Urbana, Ill; pp. 468-475.

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