Method for detecting motion vector

Details Method for detecting motion vector Method for detecting motion vector

1991-12-30

1992-12-22

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358136, H04N 514

Patent

active

051737728

ABSTRACT:
A real time motion vector detection method for increasing a speed of motion detection by using a digital signal processor in an image processing system. It is possible to reduce an operation time by making most use of a feature of DSP chip in performing a motion detection with the three step detection method, i.e., a so-called coarse-fine search method to search roughly in a first step and search accurately in second and third steps on the assumption of the distortion measure between each block being smooth in a search area.

REFERENCES:
patent: 4951140 (1990-08-01), Ueno
patent: 5021879 (1991-06-01), Vogel

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