DE69329670D1 - Verfahren und Gerät zur Rauschminderung - Google Patents
Verfahren und Gerät zur RauschminderungInfo
- Publication number
- DE69329670D1 DE69329670D1 DE69329670T DE69329670T DE69329670D1 DE 69329670 D1 DE69329670 D1 DE 69329670D1 DE 69329670 T DE69329670 T DE 69329670T DE 69329670 T DE69329670 T DE 69329670T DE 69329670 D1 DE69329670 D1 DE 69329670D1
- Authority
- DE
- Germany
- Prior art keywords
- noise reduction
- noise
- reduction
- 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.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/20—Image enhancement or restoration using local operators
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0248—Filters characterised by a particular frequency response or filtering method
- H03H17/0261—Non linear filters
- H03H17/0263—Rank order filters
-
- 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
- H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Nonlinear Science (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Image Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
- Picture Signal Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP92402502 | 1992-09-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69329670D1 true DE69329670D1 (de) | 2000-12-21 |
DE69329670T2 DE69329670T2 (de) | 2001-03-15 |
Family
ID=8211707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69329670T Expired - Fee Related DE69329670T2 (de) | 1992-09-14 | 1993-09-03 | Verfahren und Gerät zur Rauschminderung |
Country Status (3)
Country | Link |
---|---|
US (1) | US5490094A (de) |
JP (1) | JP3247215B2 (de) |
DE (1) | DE69329670T2 (de) |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5479251A (en) * | 1993-12-30 | 1995-12-26 | Corning Incorporated | Methods for determining optical properties of optical waveguide fibers using an optical time domain reflectometer |
US5802481A (en) * | 1997-03-20 | 1998-09-01 | Motorola, Inc. | Adaptive filtering for use with data compression and signal reconstruction |
US6201582B1 (en) * | 1997-09-19 | 2001-03-13 | Philips Electronics North America Corporation | Circuit for moiré suppression |
US6128346A (en) * | 1998-04-14 | 2000-10-03 | Motorola, Inc. | Method and apparatus for quantizing a signal in a digital system |
US6108455A (en) * | 1998-05-29 | 2000-08-22 | Stmicroelectronics, Inc. | Non-linear image filter for filtering noise |
DE19846453C2 (de) * | 1998-10-08 | 2001-12-20 | Infineon Technologies Ag | Verfahren zur Unterdrückung des Rauschens in Signalen |
EP1064790A1 (de) * | 1999-01-15 | 2001-01-03 | Koninklijke Philips Electronics N.V. | Codierung und rauschfilterung einer bildfolge |
US6611150B1 (en) | 1999-03-31 | 2003-08-26 | Sadelco, Inc. | Leakage detector for use in combination with a signal level meter |
US7324143B1 (en) | 1999-04-13 | 2008-01-29 | Rochester Institute Of Technology | Method and system for reducing noise in a digital image and apparatus thereof |
US6423003B1 (en) * | 1999-10-29 | 2002-07-23 | Acuson Corporation | Ultrasonic imaging system and method with SNR adaptive processing |
WO2001052524A1 (en) * | 2000-01-13 | 2001-07-19 | Koninklijke Philips Electronics N.V. | Noise reduction |
US6359658B1 (en) * | 2000-03-06 | 2002-03-19 | Philips Electronics North America Corporation | Subjective noise measurement on active video signal |
DE10050331C2 (de) * | 2000-10-11 | 2002-11-28 | Deutsch Zentr Luft & Raumfahrt | Verfahren zur Anhebung des Signal/Rausch-Verhältnisses bei der Verarbeitung mehrkanaliger digitaler Datensätze |
US6681200B2 (en) * | 2001-02-26 | 2004-01-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for measuring system clock signal frequency variations in digital processing systems |
DE10146582A1 (de) * | 2001-09-21 | 2003-04-24 | Micronas Munich Gmbh | Vorrichtung und Verfahren zur Teilbandzerlegung von Bildsignalen |
JP2003283876A (ja) * | 2002-03-27 | 2003-10-03 | Sanyo Electric Co Ltd | ノイズ除去回路 |
DE60224035D1 (de) * | 2002-08-23 | 2008-01-24 | St Microelectronics Srl | Verfahren zur Rauschfilterung einer numerischen Bildfolge |
JP4497872B2 (ja) * | 2003-09-10 | 2010-07-07 | キヤノン株式会社 | 撮像装置 |
KR100564592B1 (ko) * | 2003-12-11 | 2006-03-28 | 삼성전자주식회사 | 동영상 데이터 잡음제거방법 |
JP4390569B2 (ja) * | 2004-01-19 | 2009-12-24 | 株式会社ミツトヨ | 信号処理装置、および測定機 |
KR100555866B1 (ko) * | 2004-06-08 | 2006-03-03 | 삼성전자주식회사 | 패턴 적응형 필터링에 의한 영상신호의 평활화 장치 및 그평활화 방법 |
EP1779653A4 (de) * | 2004-07-30 | 2011-09-14 | Algolith Inc | Vorrichtung und verfahren zur adaptiven 3d-rauschreduktion |
US20060152596A1 (en) * | 2005-01-11 | 2006-07-13 | Eastman Kodak Company | Noise cleaning sparsely populated color digital images |
US20070098086A1 (en) * | 2005-10-28 | 2007-05-03 | Vasudev Bhaskaran | Spatio-temporal noise filter for digital video |
US8009732B2 (en) * | 2006-09-01 | 2011-08-30 | Seiko Epson Corporation | In-loop noise reduction within an encoder framework |
CN100454970C (zh) * | 2006-09-30 | 2009-01-21 | 四川长虹电器股份有限公司 | 空间域像素数据处理方法 |
JP5062483B2 (ja) * | 2008-04-01 | 2012-10-31 | ソニー株式会社 | 信号処理装置および方法、並びにプログラム |
JP4945532B2 (ja) * | 2008-09-05 | 2012-06-06 | 株式会社東芝 | 劣化画像復元方法、劣化画像復元装置、及び、プログラム |
JP2011035776A (ja) * | 2009-08-04 | 2011-02-17 | Sanyo Electric Co Ltd | 映像情報処理装置およびプログラム |
EP2835963B1 (de) * | 2012-04-04 | 2017-03-22 | Mitsubishi Electric Corporation | Bildverarbeitungsvorrichtung und -verfahren sowie bildverarbeitungsprogramm |
JP6161326B2 (ja) * | 2013-02-27 | 2017-07-12 | キヤノン株式会社 | 画像処理装置、画像処理方法、及びプログラム |
PL226101B1 (pl) | 2015-02-10 | 2017-06-30 | Sławomir Szechniuk | Sposob redukcji zaklocen i szumow w ukladach z dwoma torami sygnalow oraz filtr fazowy |
US11086817B2 (en) * | 2017-09-28 | 2021-08-10 | Intel Corporation | Systolic similarity estimation with two-dimensional sliding window |
CN114376606B (zh) * | 2022-01-18 | 2023-05-09 | 武汉联影医疗科技有限公司 | 一种超声成像的滤波方法和系统 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4038536A (en) * | 1976-03-29 | 1977-07-26 | Rockwell International Corporation | Adaptive recursive least mean square error filter |
US4573070A (en) * | 1977-01-31 | 1986-02-25 | Cooper J Carl | Noise reduction system for video signals |
US4303943A (en) * | 1980-03-24 | 1981-12-01 | Magnavox Government & Industrial Electronics | Adaptive enhancement of signal-to-noise ratio in television imagery |
US4334244A (en) * | 1980-07-28 | 1982-06-08 | Magnavox Government And Industrial Electronics Company | Adaptive image enhancement system |
US4581641A (en) * | 1984-10-18 | 1986-04-08 | Zenith Electronics Corporation | Video noise detector |
US4682230A (en) * | 1986-03-21 | 1987-07-21 | Rca Corporation | Adaptive median filter system |
US4761819A (en) * | 1987-02-27 | 1988-08-02 | Picker International, Inc. | Adaptive noise reduction filter for reconstructed images |
DE3856040T2 (de) * | 1987-03-23 | 1998-03-12 | Matsushita Electric Ind Co Ltd | Filterkoeffizientenberechnung für ein digitales Filter |
NL8802365A (nl) * | 1988-09-27 | 1990-04-17 | Philips Nv | Werkwijze en schakeling voor het verwerken van een beeldsignaal. |
US4928258A (en) * | 1989-05-08 | 1990-05-22 | The United States Of America As Represented By The Secretary Of The Air Force | Recursive median filtering |
US5136529A (en) * | 1989-09-29 | 1992-08-04 | Hitachi, Ltd. | Digital signal weighting processing apparatus and method |
DE4001552A1 (de) * | 1990-01-20 | 1991-07-25 | Broadcast Television Syst | Schaltungsanordnung zur filterung von videosignalen |
US5260783A (en) * | 1991-02-21 | 1993-11-09 | Gte Laboratories Incorporated | Layered DCT video coder for packet switched ATM networks |
US5278638A (en) * | 1991-09-30 | 1994-01-11 | Pioneer Electronic Corporation | Noise reducing circuit for images |
DE69321011T2 (de) * | 1992-03-23 | 1999-02-18 | Thomson Multimedia, Boulogne, Cedex | Verfahren und Gerät zur Rauschmessung |
KR0134352B1 (ko) * | 1992-10-30 | 1998-04-23 | 윤종용 | 영상신호의 임펄스노이즈제거방법 및 장치 |
-
1993
- 1993-09-03 DE DE69329670T patent/DE69329670T2/de not_active Expired - Fee Related
- 1993-09-14 JP JP22868193A patent/JP3247215B2/ja not_active Expired - Fee Related
- 1993-09-14 US US08/121,103 patent/US5490094A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH06187441A (ja) | 1994-07-08 |
JP3247215B2 (ja) | 2002-01-15 |
US5490094A (en) | 1996-02-06 |
DE69329670T2 (de) | 2001-03-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8320 | Willingness to grant licences declared (paragraph 23) | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |