Method of extracting color difference signal motion vector and a

Details Method of extracting color difference signal motion vector and a Method of extracting color difference signal motion vector and a

1995-11-27

1998-07-07

Chin, Tommy P.

Television

Bandwidth reduction system

Data rate reduction

348415, 348411, 348699, 348394, H04N 718

Patent

active

057776814

ABSTRACT:
A method of extracting a color difference signal, a motion vector and motion compensator in HDTV, wherein motion vectors are multiplexed to one serial motion vector in a 4 step parallel process when compressing data, and in a motion compensation device for a memory address controller of HDTV, the first and second multiplexers are connected to data bus for horizontal address between a Raster format write and a memory of the address controller, and the third multiplexer is connected to a data bus for vertical address, and above the first to the third multiplexers selects addresses of color difference vertical/horizontal motion vector generator and luminance vertical/horizontal motion vector generator, and a motion compensator is structured to control motion compensation of the memory, and the output pixel from the memory is selected in the motion compensator by the motion pixel selector; motion vector, which is processed in 4 step parallel, is multiplexed to one serial motion vector, and the circuit is simply structured by using a motion compensation controller, exchanging serial the luminance motion vector into a color difference signal motion vector, and it is easy to compensate motion difference in HDTV since a motion vector of color difference is used for selecting the motion pixel and compensation motion difference.

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