Apparatus for determining motion vectors

Details Apparatus for determining motion vectors Apparatus for determining motion vectors

1994-12-30

1996-04-23

Chin, Tommy P.

Television

Image signal processing circuitry specific to television

Motion vector generation

348409, 348416, 348411, H04N 728

Patent

active

055108563

ABSTRACT:
An apparatus for determining motion vector for pixels of a current frame which includes a number of processing blocks comprises a motion estimator for providing motion vectors for the pixels in the current frame, a median filter for providing filtered motion vectors of the pixels, a majority detector for obtaining a first and a second major vectors corresponding to the pixels of a processing block, a controller for generating a control signal, a vector selection block for providing an output motion vector from the first and second major vectors which yields a motion compensated processing block having a less error function, and a switch responsive to the control signal for selecting a motion vector for each processing block from the output motion vector and a motion vector of the pixel located at the center of each processing block.

REFERENCES:
patent: 5027203 (1991-06-01), Samad et al.
patent: 5157732 (1992-10-01), Ishii et al.
patent: 5189518 (1993-02-01), Nishida
patent: 5210605 (1993-05-01), Zaccarin et al.
patent: 5347312 (1994-09-01), Saunders et al.
patent: 5387947 (1995-02-01), Shin
patent: 5398068 (1995-03-01), Liu et al.

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