Television – Image signal processing circuitry specific to television – Motion dependent key signal generation or scene change...
Patent
1993-01-11
1994-07-12
Buczinski, Stephen C.
Television
Image signal processing circuitry specific to television
Motion dependent key signal generation or scene change...
382 42, 382 43, 382 54, H04N 514, H04N 718, G06F 15336
Patent
active
053293681
ABSTRACT:
An image motion tracking system (10) for use with an image detector (12, 14) having an array of elements in the x and y directions. First, frequency domain representations of an image are created to provide a reference frame of image data and an input frame of image data. A processor (30) is included for detecting a change in phase of the detector (12, 14) with respect to first and second samples of the reference frame relative to corresponding first and second samples of the input frame to discern a displacement of at least a portion of the input frame relative to at least a portion of the reference frame. Finally, the output signal is corrected to compensate for the displacement of the input frame relative to the reference frame.
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patent: 4959725 (1990-09-01), Mandle
patent: 4985765 (1991-01-01), Fernando
Matsuzuru et al., "A New Technique to Improve Video Stability by Digital Processing", Nov. 1988 SMPTE Journal, pp. 908-910.
Oppenheim et al., "Properties of the Continuous-Time Fourier Transform", .COPYRGT.1983 Signals and Systems, p. 202 through 205.
Pearson et al., "A Simple Motion Detector for Television Signals", Journal of the SMPTE, vol. 82, Jan. 1973, pp. 17-21.
Buczinski Stephen C.
Denson-Low Wanda K.
Hughes Aircraft Company
Sales Michael W.
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