Television – Object tracking
Patent
1993-08-20
1995-09-26
Groody, James J.
Television
Object tracking
348295, 2502031, H04N 314
Patent
active
054537819
ABSTRACT:
Disclosed are methods and apparatus that minimize the degradation of the Modulation Transfer Function (MTF) which results from a mismatch between the velocity of an optical image (V.sub.TDI) and that of a corresponding charge image (V.sub.OPTICAL) formed in a TDI radiation detector array (14). In accordance with one aspect of this invention, there is developed a figure-of-merit (FOM) that is indicative of a match between the velocities of the optical image and the charge image. The velocity match metric is developed directly from recovered video information, and serves as an input to a closed-loop controller (22, 24, 26, 23, 26') which "servos" the velocity of the charge image in order to maximize the velocity match metric. In that the error signal is indicative of the true optical image velocity, MTF degradation due to velocity mismatch is minimized without requiring apriori knowledge of image velocity.
REFERENCES:
patent: 3833762 (1974-09-01), Gudmundsen
patent: 4382267 (1983-05-01), Angle
patent: 4740681 (1988-04-01), Tsuno
patent: 4922337 (1990-05-01), Hunt et al.
patent: 4950881 (1990-08-01), Kaltschmidt
patent: 4952809 (1990-08-01), McEwen
patent: 5196688 (1993-03-01), Hesse et al.
Denson-Low W. K.
Grant Chris
Groody James J.
Hughes Aircraft Company
Sales M. W.
LandOfFree
Apparatus and method for minimizing velocity-mismatch MTF degrad does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for minimizing velocity-mismatch MTF degrad, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for minimizing velocity-mismatch MTF degrad will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1554485