CN1096182C - 能减小分块效应的视频信号解码装置 - Google Patents
能减小分块效应的视频信号解码装置 Download PDFInfo
- Publication number
- CN1096182C CN1096182C CN95104750A CN95104750A CN1096182C CN 1096182 C CN1096182 C CN 1096182C CN 95104750 A CN95104750 A CN 95104750A CN 95104750 A CN95104750 A CN 95104750A CN 1096182 C CN1096182 C CN 1096182C
- Authority
- CN
- China
- Prior art keywords
- coefficient
- quantization
- idct
- signal
- result
- 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 - Lifetime
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
- H04N19/85—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
-
- 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
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
-
- 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
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Image Processing (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
Abstract
Description
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR9476/94 | 1994-04-30 | ||
KR1019940009476A KR0128881B1 (ko) | 1994-04-30 | 1994-04-30 | 디지틀화상복호화장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1112335A CN1112335A (zh) | 1995-11-22 |
CN1096182C true CN1096182C (zh) | 2002-12-11 |
Family
ID=19382231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN95104750A Expired - Lifetime CN1096182C (zh) | 1994-04-30 | 1995-04-28 | 能减小分块效应的视频信号解码装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5606372A (zh) |
EP (1) | EP0680217B1 (zh) |
JP (1) | JP2859830B2 (zh) |
KR (1) | KR0128881B1 (zh) |
CN (1) | CN1096182C (zh) |
DE (1) | DE69512457D1 (zh) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
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 |
US5737451A (en) * | 1996-04-10 | 1998-04-07 | Eastman Kodak Company | Method and apparatus for suppressing blocking artifacts in block-transform coded images |
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 |
KR100371130B1 (ko) * | 1996-05-28 | 2003-02-07 | 마쯔시다덴기산교 가부시키가이샤 | 화상예측 복호화 장치 및 그 방법과 화상예측 부호화 장치및 그 방법 |
US5796875A (en) * | 1996-08-13 | 1998-08-18 | Sony Electronics, Inc. | Selective de-blocking filter for DCT compressed images |
US8625665B2 (en) * | 1996-09-20 | 2014-01-07 | At&T Intellectual Property Ii, L.P. | Video coder providing implicit coefficient prediction and scan adaptation for image coding and intra coding of video |
GB9622725D0 (en) * | 1996-10-31 | 1997-01-08 | Sgs Thomson Microelectronics | A method and circuitry for compressing and decompressing digital data |
US10277656B2 (en) * | 2002-01-29 | 2019-04-30 | FiveOpenBooks, LLC | Method and system for delivering media data |
CN1332560C (zh) * | 2002-07-22 | 2007-08-15 | 上海芯华微电子有限公司 | 无附加帧存储器基于块边界的差和量化因子的去块效应法 |
JP4321523B2 (ja) * | 2003-05-27 | 2009-08-26 | 株式会社ニコン | 画像処理装置、および画像処理プログラム |
JP4775756B2 (ja) * | 2005-03-18 | 2011-09-21 | 富士ゼロックス株式会社 | 復号化装置及びそのプログラム |
US7873105B2 (en) * | 2005-04-01 | 2011-01-18 | Broadcom Corporation | Hardware implementation of optimized single inverse quantization engine for a plurality of standards |
CN100490537C (zh) * | 2005-06-15 | 2009-05-20 | 华为技术有限公司 | 一种降低图像方块效应的方法 |
US8036485B2 (en) * | 2007-04-09 | 2011-10-11 | Tektronix, Inc. | Systems and methods for measuring loss of detail in a video codec block |
US10230956B2 (en) * | 2012-09-26 | 2019-03-12 | Integrated Device Technology, Inc. | Apparatuses and methods for optimizing rate-distortion of syntax elements |
CN113645466B (zh) * | 2021-06-29 | 2024-03-08 | 深圳市迪威码半导体有限公司 | 一种基于随机概率的图像去块算法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5146326A (en) * | 1989-11-14 | 1992-09-08 | Fujitsu Limited | Coded picture information decoding apparatus having means for improving picture distortion |
US5229864A (en) * | 1990-04-16 | 1993-07-20 | Fuji Photo Film Co., Ltd. | Device for regenerating a picture signal by decoding |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0107426B1 (en) * | 1982-10-14 | 1987-01-21 | British Telecommunications | Image transmission |
JP2520306B2 (ja) * | 1989-05-24 | 1996-07-31 | 三菱電機株式会社 | 変換符号化装置 |
JPH0828875B2 (ja) * | 1989-08-21 | 1996-03-21 | 三菱電機株式会社 | 符号化装置および復号化装置 |
US5136371A (en) * | 1990-03-15 | 1992-08-04 | Thomson Consumer Electronics, Inc. | Digital image coding using random scanning |
KR0148130B1 (ko) * | 1992-05-18 | 1998-09-15 | 강진구 | 블럭킹아티팩트를 억제시키는 부호화/복호화 방법 및 그 장치 |
KR950005621B1 (ko) * | 1992-09-30 | 1995-05-27 | 주식회사금성사 | 영상 디코더 |
US5379122A (en) * | 1992-10-02 | 1995-01-03 | Xerox Corporation | Decompression of standard ADCT-compressed images |
-
1994
- 1994-04-30 KR KR1019940009476A patent/KR0128881B1/ko not_active IP Right Cessation
-
1995
- 1995-04-28 US US08/431,524 patent/US5606372A/en not_active Expired - Lifetime
- 1995-04-28 DE DE69512457T patent/DE69512457D1/de not_active Expired - Lifetime
- 1995-04-28 CN CN95104750A patent/CN1096182C/zh not_active Expired - Lifetime
- 1995-04-28 EP EP19950106439 patent/EP0680217B1/en not_active Expired - Lifetime
- 1995-05-01 JP JP13112695A patent/JP2859830B2/ja not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5146326A (en) * | 1989-11-14 | 1992-09-08 | Fujitsu Limited | Coded picture information decoding apparatus having means for improving picture distortion |
US5229864A (en) * | 1990-04-16 | 1993-07-20 | Fuji Photo Film Co., Ltd. | Device for regenerating a picture signal by decoding |
Also Published As
Publication number | Publication date |
---|---|
EP0680217A2 (en) | 1995-11-02 |
EP0680217A3 (en) | 1996-10-23 |
US5606372A (en) | 1997-02-25 |
KR0128881B1 (ko) | 1998-04-10 |
JP2859830B2 (ja) | 1999-02-24 |
DE69512457D1 (de) | 1999-11-04 |
CN1112335A (zh) | 1995-11-22 |
KR950030670A (ko) | 1995-11-24 |
EP0680217B1 (en) | 1999-09-29 |
JPH07322262A (ja) | 1995-12-08 |
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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: 20030523 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: 20130425 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20130425 Address after: Ontario Patentee after: Fengye Vision Technology Co., Ltd. Address before: Seoul, South Kerean Patentee before: Daewoo Electronics Co., Ltd. |
|
C17 | Cessation of patent right | ||
CX01 | Expiry of patent term |
Expiration termination date: 20150428 Granted publication date: 20021211 |