CN1555201A - 对视频信号进行梳状滤波的方法 - Google Patents
对视频信号进行梳状滤波的方法 Download PDFInfo
- Publication number
- CN1555201A CN1555201A CNA2004100586527A CN200410058652A CN1555201A CN 1555201 A CN1555201 A CN 1555201A CN A2004100586527 A CNA2004100586527 A CN A2004100586527A CN 200410058652 A CN200410058652 A CN 200410058652A CN 1555201 A CN1555201 A CN 1555201A
- Authority
- CN
- China
- Prior art keywords
- signal
- value
- sample
- vector
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 9
- 239000013598 vector Substances 0.000 claims abstract description 53
- 238000001914 filtration Methods 0.000 claims description 23
- 230000003044 adaptive effect Effects 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 239000013604 expression vector Substances 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/22—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating trigonometric functions; for conversion of co-ordinates; for computations involving vector quantities
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/20—Circuitry for controlling amplitude response
- H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
- H04N5/208—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- Algebra (AREA)
- Processing Of Color Television Signals (AREA)
- Picture Signal Circuits (AREA)
- Image Processing (AREA)
Abstract
Description
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/454,037 | 1999-12-03 | ||
US09/454,037 US6384873B1 (en) | 1999-12-03 | 1999-12-03 | Vector magnitude control of a comb filter |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB00134840XA Division CN1291607C (zh) | 1999-12-03 | 2000-11-30 | 梳状滤波器的向量幅度控制 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1555201A true CN1555201A (zh) | 2004-12-15 |
CN1319388C CN1319388C (zh) | 2007-05-30 |
Family
ID=23803029
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB00134840XA Expired - Lifetime CN1291607C (zh) | 1999-12-03 | 2000-11-30 | 梳状滤波器的向量幅度控制 |
CNB2005100923277A Expired - Lifetime CN100499828C (zh) | 1999-12-03 | 2000-11-30 | 用于计算由采样信号表示的向量的近似幅度的装置 |
CNB2004100586527A Expired - Lifetime CN1319388C (zh) | 1999-12-03 | 2000-11-30 | 对视频信号进行梳状滤波的方法 |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB00134840XA Expired - Lifetime CN1291607C (zh) | 1999-12-03 | 2000-11-30 | 梳状滤波器的向量幅度控制 |
CNB2005100923277A Expired - Lifetime CN100499828C (zh) | 1999-12-03 | 2000-11-30 | 用于计算由采样信号表示的向量的近似幅度的装置 |
Country Status (8)
Country | Link |
---|---|
US (1) | US6384873B1 (zh) |
EP (1) | EP1107612B1 (zh) |
JP (1) | JP4776070B2 (zh) |
KR (1) | KR100752258B1 (zh) |
CN (3) | CN1291607C (zh) |
BR (1) | BRPI0005538B1 (zh) |
DE (1) | DE60045237D1 (zh) |
MX (1) | MXPA00011720A (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101605268B (zh) * | 2008-06-10 | 2011-02-16 | 凌阳科技股份有限公司 | 梳型滤波器上的边缘方向检测的系统 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002060188A1 (fr) * | 2001-01-24 | 2002-08-01 | Asahi Kasei Kabushiki Kaisha | Procede et circuit de separations de signaux y-c |
US6738097B2 (en) * | 2001-04-11 | 2004-05-18 | Oki Electric Industry Co, Ltd. | Composite video signal decoder having stripe component judging section |
KR100975787B1 (ko) * | 2002-03-27 | 2010-08-16 | 톰슨 라이센싱 | 개선된 대각선 방향의 인핸스먼트로의 업컨버젼 |
AU2003215018A1 (en) * | 2002-03-27 | 2003-10-13 | Thomson Licensing S.A. | Upconversion with noise constrained diagonal enhancement |
US8553155B2 (en) * | 2003-03-05 | 2013-10-08 | Broadcom Corporation | System and method for three dimensional comb filtering |
US7227587B2 (en) | 2003-03-05 | 2007-06-05 | Broadcom Corporation | System and method for three dimensional comb filtering |
KR20060021391A (ko) * | 2003-06-20 | 2006-03-07 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 휘도 및 컬러 분리 |
US8731072B2 (en) * | 2010-06-07 | 2014-05-20 | Stmicroelectronics International N.V. | Adaptive filter for video signal processing for decoder that selects rate of switching between 2D and 3D filters for separation of chroma and luma signals |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4146840A (en) * | 1978-01-31 | 1979-03-27 | Harris Corporation | Technique for obtaining symbol timing for equalizer weights |
US4240105A (en) * | 1979-08-20 | 1980-12-16 | Yves C. Faroudja | Method and apparatus for separation of chrominance and luminance with adaptive comb filtering in a quadrature modulated color television system |
US4587552A (en) * | 1983-09-02 | 1986-05-06 | Rca Corporation | Apparatus for generating the magnitude of the vector sum of two orthogonal signals as for use in a digital TV receiver |
US4599701A (en) * | 1983-10-19 | 1986-07-08 | Grumman Aerospace Corporation | Complex magnitude computation |
US4644387A (en) * | 1985-04-25 | 1987-02-17 | Rca Corporation | Plural input television receiver having peaking circuit and chrominance band reject filter in a video signal channel |
JPS6345988A (ja) * | 1986-04-09 | 1988-02-26 | Hitachi Ltd | 輝度信号・色信号分離回路 |
US4847682A (en) | 1987-12-18 | 1989-07-11 | North American Philips Corporation | Adaptive comb filter for artifact-free decoding |
US4935807A (en) * | 1989-04-20 | 1990-06-19 | Rca Licensing Corporation | Television receiver with auxiliary input connector providing a chrominance signal subjected to pre-distortion for video signals of a separated Y-C format |
US4963979A (en) * | 1989-04-20 | 1990-10-16 | Rca Licensing Corporation | Television receiver with auxiliary input connector for video signals of a separated Y-C format |
US4963958A (en) * | 1989-04-20 | 1990-10-16 | Rca Licensing Corporation | Television receiver with auxiliary input connector providing a second luminance signal subjected to enhancing video signals of a separated Y-C format |
US5005074A (en) * | 1989-11-17 | 1991-04-02 | Rca Licensing Corporation | Adaptive multistandard video comb filter |
GB2247806B (en) | 1990-07-23 | 1994-11-09 | Mitsubishi Electric Corp | Brightness signal/color signal separating filter |
US6246827B1 (en) * | 1990-08-17 | 2001-06-12 | Samsung Electronics Co., Ltd. | Deemphasis and subsequent reemphasis of high-energy reversed-spectrum components of a folded video signal |
US5532820A (en) * | 1990-08-17 | 1996-07-02 | Samsung Electronics Co., Ltd. | Digital modulators for use with sub-nyquist sampling of raster-scanned samples of image intensity |
JPH04109812A (ja) * | 1990-08-29 | 1992-04-10 | Mitsubishi Electric Corp | 交流電気量の振幅値演算装置 |
KR940001442B1 (ko) * | 1991-07-26 | 1994-02-23 | 주식회사 금성사 | 휘도신호 및 색신호 분리 시스템 |
JP2792311B2 (ja) * | 1992-01-31 | 1998-09-03 | 日本電気株式会社 | 多チャンネルエコー除去方法および装置 |
WO1993026106A1 (en) * | 1992-06-18 | 1993-12-23 | Oki Electric Industry Co., Ltd. | Maximum likelihood sequence estimating device and method therefor |
US5307405A (en) * | 1992-09-25 | 1994-04-26 | Qualcomm Incorporated | Network echo canceller |
US5416532A (en) | 1993-03-17 | 1995-05-16 | Samsung Electronics Co., Ltd. | Adaptive video peaking circuitry using cross-faders |
JP3299810B2 (ja) | 1993-04-28 | 2002-07-08 | 三菱電機株式会社 | 輝度信号色信号分離フィルタ |
US5533120A (en) * | 1994-02-01 | 1996-07-02 | Tandy Corporation | Acoustic feedback cancellation for equalized amplifying systems |
JP3149677B2 (ja) | 1994-04-21 | 2001-03-26 | 松下電器産業株式会社 | Y/c分離装置 |
US5526060A (en) | 1994-09-06 | 1996-06-11 | Raytheon Company | Luma/chroma decoder with demodulated control signal |
US5424784A (en) * | 1994-09-06 | 1995-06-13 | Raytheon Company | Method and apparatus for cross fading between combed and simple filtered outputs |
JPH09224260A (ja) | 1996-02-19 | 1997-08-26 | Matsushita Electric Ind Co Ltd | Y/c分離装置 |
JPH1066102A (ja) * | 1996-08-15 | 1998-03-06 | Nec Corp | Y/c分離回路 |
US5999954A (en) * | 1997-02-28 | 1999-12-07 | Massachusetts Institute Of Technology | Low-power digital filtering utilizing adaptive approximate filtering |
US6061100A (en) * | 1997-09-30 | 2000-05-09 | The University Of British Columbia | Noise reduction for video signals |
-
1999
- 1999-12-03 US US09/454,037 patent/US6384873B1/en not_active Expired - Lifetime
-
2000
- 2000-11-20 DE DE60045237T patent/DE60045237D1/de not_active Expired - Lifetime
- 2000-11-20 EP EP00403232A patent/EP1107612B1/en not_active Expired - Lifetime
- 2000-11-23 BR BRPI0005538A patent/BRPI0005538B1/pt not_active IP Right Cessation
- 2000-11-28 MX MXPA00011720A patent/MXPA00011720A/es active IP Right Grant
- 2000-11-30 CN CNB00134840XA patent/CN1291607C/zh not_active Expired - Lifetime
- 2000-11-30 CN CNB2005100923277A patent/CN100499828C/zh not_active Expired - Lifetime
- 2000-11-30 CN CNB2004100586527A patent/CN1319388C/zh not_active Expired - Lifetime
- 2000-11-30 KR KR1020000071822A patent/KR100752258B1/ko active IP Right Grant
- 2000-12-04 JP JP2000369183A patent/JP4776070B2/ja not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101605268B (zh) * | 2008-06-10 | 2011-02-16 | 凌阳科技股份有限公司 | 梳型滤波器上的边缘方向检测的系统 |
Also Published As
Publication number | Publication date |
---|---|
CN1319388C (zh) | 2007-05-30 |
EP1107612A2 (en) | 2001-06-13 |
CN1301114A (zh) | 2001-06-27 |
MXPA00011720A (es) | 2002-07-09 |
KR100752258B1 (ko) | 2007-08-29 |
CN1291607C (zh) | 2006-12-20 |
BR0005538A (pt) | 2001-07-31 |
JP4776070B2 (ja) | 2011-09-21 |
CN100499828C (zh) | 2009-06-10 |
US6384873B1 (en) | 2002-05-07 |
JP2001224041A (ja) | 2001-08-17 |
BRPI0005538B1 (pt) | 2016-11-29 |
CN1770879A (zh) | 2006-05-10 |
KR20010062001A (ko) | 2001-07-07 |
DE60045237D1 (de) | 2010-12-30 |
EP1107612B1 (en) | 2010-11-17 |
EP1107612A3 (en) | 2006-03-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1022282C (zh) | 可调去假频滤波器 | |
US5093721A (en) | Line interpolator with preservation of diagonal resolution | |
EP0196193B1 (en) | A video signal recursive filter with luma/chroma separation | |
CN1117487C (zh) | 亮度/色度分离电路 | |
KR920010506B1 (ko) | 디자탈 신호 처리 장치 | |
JPH02294191A (ja) | テレビ走査線倍増器 | |
CN1291607C (zh) | 梳状滤波器的向量幅度控制 | |
CN1187925A (zh) | 利用共同延迟元件的亮/色分离滤波器 | |
KR100206319B1 (ko) | 비디오 신호의 로컬 콘트라스트 개선을 위한 방법및장치 | |
CN1426024A (zh) | 从二维图像产生三维图像的装置及其方法 | |
US5386244A (en) | Brightness signal/color signal separation filter including an image correction judging circuit | |
CN1075919C (zh) | 三维运动检测器 | |
US6850275B1 (en) | Edge correction apparatus for digital video camera | |
US5392075A (en) | Brightness signal/color signal separation | |
KR920009607B1 (ko) | 디지탈 비디오 루미넌스 신호 처리 회로 | |
US5031042A (en) | Noise coring and peaking circuit | |
US5124794A (en) | Adaptive peaking circuit | |
JPH03190473A (ja) | ビデオ信号処理装置 | |
US7224406B2 (en) | Digital signal processing system and method applied for chroma transition | |
JPH07111605A (ja) | 雑音除去回路 | |
JPH0622313B2 (ja) | ロジカルフイルタ回路 | |
KR100408032B1 (ko) | 도트 패턴 제거 필터 및 그 방법 | |
JP2737411B2 (ja) | クロマ信号分離回路 | |
CN85105144A (zh) | 数字亮度处理系统 | |
JPH0344717B2 (zh) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder |
Address after: I Si Eli Murli Nor, France Patentee after: THOMSON LICENSING Address before: I Si Eli Murli Nor, France Patentee before: THOMSON LICENSING |
|
CP01 | Change in the name or title of a patent holder | ||
CP02 | Change in the address of a patent holder | ||
CP02 | Change in the address of a patent holder |
Address after: I Si Eli Murli Nor, France Patentee after: THOMSON LICENSING Address before: French Boulogne Patentee before: THOMSON LICENSING |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190130 Address after: Paris France Patentee after: International Digital Madison Patent Holding Co. Address before: I Si Eli Murli Nor, France Patentee before: THOMSON LICENSING |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20070530 |