Apparatus for determining motion vectors through the use of an a

Details Apparatus for determining motion vectors through the use of an a Apparatus for determining motion vectors through the use of an a

1994-12-30

1996-07-23

Chin, Tommy P.

Television

Bandwidth reduction system

Data rate reduction

348699, H04N 736

Patent

active

055394698

ABSTRACT:
An apparatus for determining motion vectors 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, an edge detector for detecting edge positions of an object in the current frame to produce edge position signals, a median filter for providing filtered motion vectors of the pixels, a majority detector for obtaining a first and a second majority 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 least 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: 5327232 (1994-07-01), Kim
patent: 5414472 (1995-05-01), Hwang

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