CN1139255C - 用于图象信号解码系统的改进的后处理方法和装置 - Google Patents
用于图象信号解码系统的改进的后处理方法和装置 Download PDFInfo
- Publication number
- CN1139255C CN1139255C CNB961935499A CN96193549A CN1139255C CN 1139255 C CN1139255 C CN 1139255C CN B961935499 A CNB961935499 A CN B961935499A CN 96193549 A CN96193549 A CN 96193549A CN 1139255 C CN1139255 C CN 1139255C
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- China
- Prior art keywords
- target pixel
- pixel data
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- 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 - Lifetime
Links
- 238000012805 post-processing Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 15
- 238000001914 filtration Methods 0.000 claims abstract description 103
- 230000015654 memory Effects 0.000 claims abstract description 24
- 239000000872 buffer Substances 0.000 claims abstract description 10
- 230000004044 response Effects 0.000 claims abstract description 8
- 238000012958 reprocessing Methods 0.000 claims description 8
- 238000013459 approach Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 9
- 230000000903 blocking effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000003044 adaptive effect Effects 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
-
- 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
- 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)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Facsimile Image Signal Circuits (AREA)
Abstract
Description
Claims (5)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950010440A KR960039992A (ko) | 1995-04-29 | 1995-04-29 | 블록화 현상 제거 장치 및 이를 이용한 동영상 복호화기 |
KR10440/1995 | 1995-04-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1183199A CN1183199A (zh) | 1998-05-27 |
CN1139255C true CN1139255C (zh) | 2004-02-18 |
Family
ID=19413343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB961935499A Expired - Lifetime CN1139255C (zh) | 1995-04-29 | 1996-04-25 | 用于图象信号解码系统的改进的后处理方法和装置 |
Country Status (11)
Country | Link |
---|---|
US (1) | US5734757A (zh) |
EP (1) | EP0886972B1 (zh) |
JP (1) | JPH11504482A (zh) |
KR (1) | KR960039992A (zh) |
CN (1) | CN1139255C (zh) |
CA (1) | CA2219746A1 (zh) |
DE (1) | DE69619707T2 (zh) |
MX (1) | MX9708188A (zh) |
PL (1) | PL180169B1 (zh) |
RU (1) | RU2154917C2 (zh) |
WO (1) | WO1996035295A1 (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100219628B1 (ko) * | 1997-02-15 | 1999-09-01 | 윤종용 | 루프필터링 방법 및 루프필터 |
KR100251549B1 (ko) * | 1997-02-28 | 2000-04-15 | 구자홍 | 블로킹 효과 제거 기능을 갖는 디지탈 영상 복호화 장치 |
US7003174B2 (en) * | 2001-07-02 | 2006-02-21 | Corel Corporation | Removal of block encoding artifacts |
KR100679035B1 (ko) | 2005-01-04 | 2007-02-06 | 삼성전자주식회사 | 인트라 bl 모드를 고려한 디블록 필터링 방법, 및 상기방법을 이용하는 다 계층 비디오 인코더/디코더 |
JP4747975B2 (ja) * | 2006-07-14 | 2011-08-17 | ソニー株式会社 | 画像処理装置および方法、プログラム、並びに、記録媒体 |
EP2375747B1 (en) | 2010-04-12 | 2019-03-13 | Sun Patent Trust | Filter positioning and selection |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60120482A (ja) * | 1983-12-02 | 1985-06-27 | Canon Inc | 画像信号処理装置 |
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. |
US5454051A (en) * | 1991-08-05 | 1995-09-26 | Eastman Kodak Company | Method of reducing block artifacts created by block transform compression algorithms |
KR0148130B1 (ko) * | 1992-05-18 | 1998-09-15 | 강진구 | 블럭킹아티팩트를 억제시키는 부호화/복호화 방법 및 그 장치 |
KR100229783B1 (ko) * | 1994-07-29 | 1999-11-15 | 전주범 | 디지탈 전송 화상의 적응적후 처리장치 |
-
1995
- 1995-04-29 KR KR1019950010440A patent/KR960039992A/ko not_active Application Discontinuation
-
1996
- 1996-04-25 EP EP96912311A patent/EP0886972B1/en not_active Expired - Lifetime
- 1996-04-25 RU RU97119861/09A patent/RU2154917C2/ru active
- 1996-04-25 DE DE69619707T patent/DE69619707T2/de not_active Expired - Lifetime
- 1996-04-25 PL PL96322974A patent/PL180169B1/pl unknown
- 1996-04-25 CA CA002219746A patent/CA2219746A1/en not_active Abandoned
- 1996-04-25 JP JP8533186A patent/JPH11504482A/ja active Pending
- 1996-04-25 MX MX9708188A patent/MX9708188A/es unknown
- 1996-04-25 CN CNB961935499A patent/CN1139255C/zh not_active Expired - Lifetime
- 1996-04-25 WO PCT/KR1996/000055 patent/WO1996035295A1/en active IP Right Grant
- 1996-04-29 US US08/639,418 patent/US5734757A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2219746A1 (en) | 1996-11-07 |
KR960039992A (ko) | 1996-11-25 |
US5734757A (en) | 1998-03-31 |
MX9708188A (es) | 1997-12-31 |
PL322974A1 (en) | 1998-03-02 |
EP0886972A1 (en) | 1998-12-30 |
JPH11504482A (ja) | 1999-04-20 |
WO1996035295A1 (en) | 1996-11-07 |
PL180169B1 (pl) | 2000-12-29 |
RU2154917C2 (ru) | 2000-08-20 |
DE69619707T2 (de) | 2002-08-08 |
EP0886972B1 (en) | 2002-03-06 |
CN1183199A (zh) | 1998-05-27 |
DE69619707D1 (de) | 2002-04-11 |
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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 | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20040423 Patentee after: Daewoo Electronics Co., Ltd. Patentee before: Daewoo Electronics Co., Ltd. |
|
ASS | Succession or assignment of patent right |
Owner name: FENGYE VISION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: DAEWOO ELECTRONICS CO., LTD. Effective date: 20130417 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20130417 Address after: Ontario Patentee after: Fengye Vision Technology Co., Ltd. Address before: Seoul, South Kerean Patentee before: Daewoo Electronics Co., Ltd. |
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CX01 | Expiry of patent term |
Granted publication date: 20040218 |
|
EXPY | Termination of patent right or utility model |