Television – Image signal processing circuitry specific to television – Chrominance-luminance signal separation
Patent
1997-03-20
1999-11-23
Peng, John K.
Television
Image signal processing circuitry specific to television
Chrominance-luminance signal separation
348699, 348670, 348665, H04N 978
Patent
active
059909781
ABSTRACT:
A luminance/chrominance (Y/C) signal separating device utilizing motion estimation and compensation. According to the device, the image motion is detected in the unit of a 2.times.2 (sample.times.line) block to separate an NTSC television signal into the Y and C signals. As a result of the motion detection, a three-dimensional Y/C signal separation is performed with respect to a still image, while a three-dimensional Y/C signal separation with the motion estimation and compensation in the unit of the 2.times.2 (sample.times.line) block in a predetermined region of the previous frame is performed with respect to a moving image. A two-dimensional Y/C signal separation is performed with respect to the moving image whose motion is not compensated in the unit of a 2.times.1 (sample.times.line) block in the present frame.
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Derwent, Luminance-Chrominance Signal Separating Device for HDTV, Derwent Jan. 1997-438178.
Kim Joo Won
Song Woo Jin
Desir Jean W.
LG Electronics Inc.
Peng John K.
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