NO931227L - Fremgangsmaate og anordning ved filtrering av numeriske bilder ved blokktransportsformasjon - Google Patents
Fremgangsmaate og anordning ved filtrering av numeriske bilder ved blokktransportsformasjonInfo
- Publication number
- NO931227L NO931227L NO93931227A NO931227A NO931227L NO 931227 L NO931227 L NO 931227L NO 93931227 A NO93931227 A NO 93931227A NO 931227 A NO931227 A NO 931227A NO 931227 L NO931227 L NO 931227L
- Authority
- NO
- Norway
- Prior art keywords
- boundary pixel
- brightness level
- block
- pixels
- adjacent
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/527—Global motion vector estimation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
- H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Image Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR929204816A FR2690299B1 (fr) | 1992-04-17 | 1992-04-17 | Procede et dispositif de filtrage spatial d'images numeriques decodees par transformation par bloc. |
Publications (2)
Publication Number | Publication Date |
---|---|
NO931227D0 NO931227D0 (no) | 1993-03-31 |
NO931227L true NO931227L (no) | 1993-10-18 |
Family
ID=9429035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO93931227A NO931227L (no) | 1992-04-17 | 1993-03-31 | Fremgangsmaate og anordning ved filtrering av numeriske bilder ved blokktransportsformasjon |
Country Status (6)
Country | Link |
---|---|
US (1) | US5422964A (de) |
EP (1) | EP0566202B1 (de) |
JP (1) | JPH0662387A (de) |
DE (1) | DE69309529T2 (de) |
FR (1) | FR2690299B1 (de) |
NO (1) | NO931227L (de) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5703965A (en) * | 1992-06-05 | 1997-12-30 | The Regents Of The University Of California | Image compression/decompression based on mathematical transform, reduction/expansion, and image sharpening |
US5696851A (en) * | 1993-04-30 | 1997-12-09 | Comsat Corporation | Codeword-dependent post-filtering for vector quantization-based image compression |
TW293227B (de) * | 1994-11-24 | 1996-12-11 | Victor Company Of Japan | |
JP2723867B2 (ja) * | 1995-11-24 | 1998-03-09 | 日本電気アイシーマイコンシステム株式会社 | 画像信号復号化装置 |
US6324301B1 (en) | 1996-01-24 | 2001-11-27 | Lucent Technologies Inc. | Adaptive postfilter for low bitrate visual telephony noise removal |
US5881180A (en) * | 1996-02-08 | 1999-03-09 | Sony Corporation | Method and apparatus for the reduction of blocking effects in images |
US5974196A (en) * | 1996-03-15 | 1999-10-26 | Sony Corporation | Method and apparatus for blocking effect reduction in images |
DE69714530T2 (de) * | 1996-03-28 | 2003-04-24 | Koninkl Philips Electronics Nv | Verfahren und vorrichtung zur kodierung und dekodierung von bildern |
US5933542A (en) * | 1996-04-24 | 1999-08-03 | Sony Corporation | Method and apparatus for blocking effect reduction in images by post-processing in the spatial domain |
US6094453A (en) | 1996-10-11 | 2000-07-25 | Digital Accelerator Corporation | Digital data compression with quad-tree coding of header file |
US7010173B2 (en) * | 2000-01-13 | 2006-03-07 | At&T Corp. | Video coder employing pixel transposition |
EP0985317B1 (de) * | 1997-05-07 | 2001-11-21 | Infineon Technologies AG | Verfahren zur codierung und decodierung eines digitalisierten bildes |
FI103003B1 (fi) | 1997-06-13 | 1999-03-31 | Nokia Mobile Phones Ltd | Suodatusmenetelmä, suodatin ja matkaviestinpääte |
KR100243225B1 (ko) | 1997-07-16 | 2000-02-01 | 윤종용 | 블록화효과 및 링잉잡음 감소를 위한 신호적응필터링방법 및신호적응필터 |
KR100281099B1 (ko) * | 1997-07-30 | 2001-04-02 | 구자홍 | 동영상의부호화에따른블록화현상제거방법 |
US7239755B1 (en) * | 1997-07-30 | 2007-07-03 | Lg Electronics Inc. | Method of reducing a blocking artifact when coding moving picture |
KR100244290B1 (ko) | 1997-09-09 | 2000-02-01 | 구자홍 | 저속 전송에서의 동영상을 위한 디블록킹 필터링 방법 |
US6937659B1 (en) * | 1997-11-14 | 2005-08-30 | Ac Capital Management, Inc. | Apparatus and method for compressing video information |
GB9822094D0 (en) | 1998-10-09 | 1998-12-02 | Snell & Wilcox Ltd | Improvements in data compression |
US8819723B1 (en) | 2000-04-27 | 2014-08-26 | The Directv Group, Inc. | System and method for brokering auxiliary data broadcasting services |
FR2818863A1 (fr) * | 2000-12-26 | 2002-06-28 | Koninkl Philips Electronics Nv | Procede de traitement de donnees |
FR2818862A1 (fr) * | 2000-12-26 | 2002-06-28 | Koninkl Philips Electronics Nv | Procede de traitement de donnees |
FR2822330B1 (fr) * | 2001-03-14 | 2003-05-02 | Thomson Multimedia Sa | Procede de codage par blocs, de type mpeg, dans lequel on affecte une resolution a chaque bloc |
FR2841423A1 (fr) * | 2002-06-25 | 2003-12-26 | Koninkl Philips Electronics Nv | Procede de detection d'artefacts de bloc |
US7227901B2 (en) * | 2002-11-21 | 2007-06-05 | Ub Video Inc. | Low-complexity deblocking filter |
US7424501B2 (en) * | 2003-06-30 | 2008-09-09 | Intel Corporation | Nonlinear filtering and deblocking applications utilizing SIMD sign and absolute value operations |
US7400681B2 (en) | 2003-11-28 | 2008-07-15 | Scientific-Atlanta, Inc. | Low-complexity motion vector prediction for video codec with two lists of reference pictures |
US7971042B2 (en) * | 2005-09-28 | 2011-06-28 | Synopsys, Inc. | Microprocessor system and method for instruction-initiated recording and execution of instruction sequences in a dynamically decoupleable extended instruction pipeline |
KR100809687B1 (ko) * | 2006-02-28 | 2008-03-06 | 삼성전자주식회사 | 영상신호에 포함된 잡음을 제거할 수 있는 영상신호처리장치 및 방법 |
JP5990217B2 (ja) * | 2014-05-21 | 2016-09-07 | キヤノン株式会社 | 画像処理装置、画像形成装置、およびそれらの制御方法 |
US10085523B2 (en) | 2014-08-11 | 2018-10-02 | Apple Inc. | Attachment system for an electronic device |
US9894964B2 (en) | 2014-08-11 | 2018-02-20 | Apple Inc. | Consumer product attachment systems having a locking assembly |
US10184506B2 (en) | 2014-08-11 | 2019-01-22 | Apple Inc. | Captive elements of an attachment system |
KR102081647B1 (ko) * | 2016-07-04 | 2020-02-27 | 가부시키가이샤 히다치 하이테크놀로지즈 | 검사 장치 및 검사 방법 |
CN107705320B (zh) * | 2016-08-08 | 2022-01-11 | 佳能株式会社 | 跟踪视频中的对象的边界点的方法和装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4553165A (en) * | 1983-08-11 | 1985-11-12 | Eastman Kodak Company | Transform processing method for reducing noise in an image |
US5065444A (en) * | 1988-02-08 | 1991-11-12 | Northrop Corporation | Streak removal filtering method and apparatus |
US4941043A (en) * | 1988-06-14 | 1990-07-10 | Siemens Aktiengesellschaft | Method for reducing blocking artifacts in video scene coding with discrete cosine transformation (DCT) at a low data rate |
FR2661063B1 (fr) * | 1990-04-13 | 1992-06-19 | Thomson Csf | Procede et dispositif de post-filtrage pour codage d'images par transformation cosinus discrete. |
GB2253318B (en) * | 1991-02-27 | 1994-07-20 | Stc Plc | Image processing |
US5235434A (en) * | 1991-06-27 | 1993-08-10 | Polaroid Corporation | Method and apparatus for selectively adjusting the brightness of large regions of an image |
-
1992
- 1992-04-17 FR FR929204816A patent/FR2690299B1/fr not_active Expired - Lifetime
-
1993
- 1993-03-31 NO NO93931227A patent/NO931227L/no unknown
- 1993-04-09 US US08/045,666 patent/US5422964A/en not_active Expired - Lifetime
- 1993-04-13 EP EP93201064A patent/EP0566202B1/de not_active Expired - Lifetime
- 1993-04-13 DE DE69309529T patent/DE69309529T2/de not_active Expired - Lifetime
- 1993-04-19 JP JP5114237A patent/JPH0662387A/ja not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR2690299B1 (fr) | 1994-06-17 |
DE69309529T2 (de) | 1997-09-11 |
JPH0662387A (ja) | 1994-03-04 |
FR2690299A1 (fr) | 1993-10-22 |
US5422964A (en) | 1995-06-06 |
EP0566202B1 (de) | 1997-04-09 |
NO931227D0 (no) | 1993-03-31 |
EP0566202A1 (de) | 1993-10-20 |
DE69309529D1 (de) | 1997-05-15 |
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