KR100202565B1 - 복합영상신호의 3차원 휘도/색신호 분리 장치 - Google Patents
복합영상신호의 3차원 휘도/색신호 분리 장치 Download PDFInfo
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- KR100202565B1 KR100202565B1 KR1019960008050A KR19960008050A KR100202565B1 KR 100202565 B1 KR100202565 B1 KR 100202565B1 KR 1019960008050 A KR1019960008050 A KR 1019960008050A KR 19960008050 A KR19960008050 A KR 19960008050A KR 100202565 B1 KR100202565 B1 KR 100202565B1
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- South Korea
- Prior art keywords
- motion
- luminance
- separation
- dimensional
- frame
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- 238000000926 separation method Methods 0.000 title claims abstract description 77
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 230000033001 locomotion Effects 0.000 claims abstract description 98
- 238000011156 evaluation Methods 0.000 claims abstract description 25
- 230000015654 memory Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 12
- 230000007547 defect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000003044 adaptive effect Effects 0.000 description 4
- 239000000969 carrier Substances 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
- H04N9/78—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
Description
Claims (7)
- 프레임 메모리(2),(3)에서 각기 출력되는 복합영상신호를 근거로 이전 프레임과 현재 프레임의 움직임을 소정의 블록단위로 검출하여 현재 프레임이 정지영상인지 동영상인지를 판단하는 움직임 검출부(4A)와; 상기 움직임 검출부(4A)에 의해 동영상으로 판단되는 경우 움직임 보상이 가능한지의 여부를 평가하는 움직임 평가부(4B)와; 상기 움직임 검출부(4A)에서 정지영상으로 검출될때 3차원 Y/C분리를 수행하는 3차원 Y/C분리부(5)와; 상기 움직임 평가부(4B)의 평가 결과 움직임 보상이 가능할때 움직인 거리만큼의 움직임 보상 3차원 Y/C분리를 수행하는 움직임보상 3차원 Y/C분리부(6)와; 상기 움직임 평가부(4B)의 평가 결과 움직임이 보상되지 않는 신호에 대하여 블록단위로 2차원 Y/C분리를 수행하는 2차원 Y/C분리부(7)를 포함하여 구성한 것을 특징으로 하는 복합영상신호의 3차원 휘도/색신호 분리 장치.
- 제1항에 있어서, 움직임 검출부(4A)는 4fsc로 샘플링된 소정 갯수의 샘플을 블록단위로 현재 프레임과 이전 프레임에서 휘도/색신호를 분리하여 각각의 휘도신호(Y)와 색차신호(I),(Q)를 비교하도록 구성한 것을 특징으로 하는 복합영상신호의 3차원 휘도/색신호 분리 장치.
- 제1항에 있어서, 움직임 평가부(4B)는 움직임 평가를 위한 프레임간의 움직임 탐색범위를 평균적으로 수평방향으로7화소, 수직방향으로4라인으로 설정하는 것을 특징으로 하는 복합영상신호의 3차원 휘도/색신호 분리 장치.
- 제1항에 있어서, 3차원 Y/C분리부(5)는 N번째 프레임의 4샘플 블록과 (N-1)번째 프레임의 4샘플 블록을 이용하여 3차원 Y/C분리를 수행하도록 구성한 것을 특징으로 하는 복합영상신호의 3차원 휘도/색신호 분리 장치.
- 제1항에 있어서, 움직임 보상 3차원 Y/C분리부(6)는 블록정합을 이용한 움직임 평가와 움직임 보상으로 NTSC복합영상신호의 3차원 Y/C분리를 수행하도록 구성한 것을 특징으로 하는 복합영상신호의 3차원 휘도/색신호 분리 장치.
- 제5항에 있어서, 블록의 크기는 수직방향으로 2라인과 수평방향으로 1화소(2샘플)을 기본 블록으로 설정하는 것을 특징으로 하는 복합영상신호의 3차원 휘도/색신호 분리 장치.
- 제1항에 있어서, 2차원 Y/C분리부(7)는 N번째 프레임 블록의 j번째 라인과 (j+1)번째 라인과의 상관관계를 이용하여 휘도신호와 색신호를 분리하도록 구성한 것을 특징으로 하는 복합영상신호의 3차원 휘도/색신호 분리 장치.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960008050A KR100202565B1 (ko) | 1996-03-23 | 1996-03-23 | 복합영상신호의 3차원 휘도/색신호 분리 장치 |
US08/822,342 US5990978A (en) | 1996-03-23 | 1997-03-20 | Luminance/chrominance signal separating device |
JP07008497A JP3331138B2 (ja) | 1996-03-23 | 1997-03-24 | 複合映像信号の輝度/色信号分離装置 |
DE19712295A DE19712295B4 (de) | 1996-03-23 | 1997-03-24 | Luminanz/Chrominanzsignaltrennvorrichtung |
GB9706057A GB2311436B (en) | 1996-03-23 | 1997-03-24 | Luminance/chrominance signal separating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960008050A KR100202565B1 (ko) | 1996-03-23 | 1996-03-23 | 복합영상신호의 3차원 휘도/색신호 분리 장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970068682A KR970068682A (ko) | 1997-10-13 |
KR100202565B1 true KR100202565B1 (ko) | 1999-06-15 |
Family
ID=19453790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960008050A KR100202565B1 (ko) | 1996-03-23 | 1996-03-23 | 복합영상신호의 3차원 휘도/색신호 분리 장치 |
Country Status (5)
Country | Link |
---|---|
US (1) | US5990978A (ko) |
JP (1) | JP3331138B2 (ko) |
KR (1) | KR100202565B1 (ko) |
DE (1) | DE19712295B4 (ko) |
GB (1) | GB2311436B (ko) |
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KR101277255B1 (ko) | 2006-06-13 | 2013-06-26 | 서강대학교산학협력단 | 복합 영상 신호에서의 화질 개선 방법 및 그 장치, 복합영상 신호에서의 왜곡 제거 방법 및 그 장치 |
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1996
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1997
- 1997-03-20 US US08/822,342 patent/US5990978A/en not_active Expired - Fee Related
- 1997-03-24 JP JP07008497A patent/JP3331138B2/ja not_active Expired - Fee Related
- 1997-03-24 GB GB9706057A patent/GB2311436B/en not_active Expired - Fee Related
- 1997-03-24 DE DE19712295A patent/DE19712295B4/de not_active Expired - Fee Related
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Publication number | Priority date | Publication date | Assignee | Title |
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KR100712506B1 (ko) * | 2005-02-14 | 2007-04-27 | 삼성전자주식회사 | 크로스컬러 아티팩트 제거 회로 및 그 방법 |
KR101277255B1 (ko) | 2006-06-13 | 2013-06-26 | 서강대학교산학협력단 | 복합 영상 신호에서의 화질 개선 방법 및 그 장치, 복합영상 신호에서의 왜곡 제거 방법 및 그 장치 |
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JP3331138B2 (ja) | 2002-10-07 |
JPH1013855A (ja) | 1998-01-16 |
GB9706057D0 (en) | 1997-05-14 |
GB2311436A (en) | 1997-09-24 |
KR970068682A (ko) | 1997-10-13 |
DE19712295B4 (de) | 2005-06-23 |
GB2311436B (en) | 1998-02-11 |
US5990978A (en) | 1999-11-23 |
DE19712295A1 (de) | 1997-11-06 |
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