JPH1132333A - 圧縮画像の処理装置 - Google Patents
圧縮画像の処理装置Info
- Publication number
- JPH1132333A JPH1132333A JP17424797A JP17424797A JPH1132333A JP H1132333 A JPH1132333 A JP H1132333A JP 17424797 A JP17424797 A JP 17424797A JP 17424797 A JP17424797 A JP 17424797A JP H1132333 A JPH1132333 A JP H1132333A
- Authority
- JP
- Japan
- Prior art keywords
- noise
- dct
- equation
- block
- signal
- 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.)
- Pending
Links
- 241000255925 Diptera Species 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims description 13
- 238000004364 calculation method Methods 0.000 claims description 2
- 230000009466 transformation Effects 0.000 abstract 1
- 238000013139 quantization Methods 0.000 description 22
- 230000006835 compression Effects 0.000 description 12
- 238000007906 compression Methods 0.000 description 12
- 239000011159 matrix material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 3
- 238000005311 autocorrelation function Methods 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000009828 non-uniform distribution Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012804 iterative process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Landscapes
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17424797A JPH1132333A (ja) | 1997-06-30 | 1997-06-30 | 圧縮画像の処理装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17424797A JPH1132333A (ja) | 1997-06-30 | 1997-06-30 | 圧縮画像の処理装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1132333A true JPH1132333A (ja) | 1999-02-02 |
| JPH1132333A5 JPH1132333A5 (OSRAM) | 2005-04-07 |
Family
ID=15975299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17424797A Pending JPH1132333A (ja) | 1997-06-30 | 1997-06-30 | 圧縮画像の処理装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1132333A (OSRAM) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6728414B1 (en) * | 1998-11-25 | 2004-04-27 | Samsung Electronics Co., Ltd. | De-blocking method and apparatus |
| CN100388755C (zh) * | 2004-11-12 | 2008-05-14 | 诺日士钢机株式会社 | 图像噪声去除方法 |
| US8090216B2 (en) | 2008-04-16 | 2012-01-03 | Aptina Imaging Corporation | Image noise level estimation from JPEG data |
| JP2017103723A (ja) * | 2015-12-04 | 2017-06-08 | 日本放送協会 | 符号化装置、復号装置、及びプログラム |
-
1997
- 1997-06-30 JP JP17424797A patent/JPH1132333A/ja active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6728414B1 (en) * | 1998-11-25 | 2004-04-27 | Samsung Electronics Co., Ltd. | De-blocking method and apparatus |
| CN100388755C (zh) * | 2004-11-12 | 2008-05-14 | 诺日士钢机株式会社 | 图像噪声去除方法 |
| US8090216B2 (en) | 2008-04-16 | 2012-01-03 | Aptina Imaging Corporation | Image noise level estimation from JPEG data |
| JP2017103723A (ja) * | 2015-12-04 | 2017-06-08 | 日本放送協会 | 符号化装置、復号装置、及びプログラム |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100237805B1 (ko) | 비디오 인코딩을 위한 공간 적응 필터링 방법 및 장치 | |
| EP0542261B1 (en) | Method of performing high efficiency coding of image signal and system therefor | |
| JPH07131757A (ja) | 画像処理装置 | |
| JP2008527932A (ja) | ハイブリッドビデオ圧縮の量子化雑音除去用の非線形ループ内デノイズフィルタ | |
| US20090116554A1 (en) | High-performance video transcoding method | |
| Zhai et al. | Efficient deblocking with coefficient regularization, shape-adaptive filtering, and quantization constraint | |
| JPH0970044A (ja) | 画像信号処理装置および方法 | |
| EP1296523A3 (en) | Method and apparatus for improved motion estimation and compensation in digital video compression and decompression | |
| CN1864177B (zh) | 视频编码和解码方法及其相应设备 | |
| Nakajima et al. | A pel adaptive reduction of coding artifacts for MPEG video signals | |
| CN100490537C (zh) | 一种降低图像方块效应的方法 | |
| KR100319557B1 (ko) | 블럭 단위로 부호화된 영상의 블럭 경계 잡음 성분 제거 방법 | |
| KR100386639B1 (ko) | 정규화된 역양자화기를 이용한 영상 및 동영상의 복원 방법 | |
| JPH10224790A (ja) | 圧縮伸張された画像中のブロック状ノイズを除去するフィルタおよびフィルタ方法 | |
| JPH1132333A (ja) | 圧縮画像の処理装置 | |
| JP3508281B2 (ja) | 画像処理装置 | |
| US7672520B2 (en) | Method and device for coding and decoding a sequence of images | |
| JPH04322593A (ja) | 画像符号化装置及びその復号化装置 | |
| JP2000152229A (ja) | 画像処理システムの圧縮画像の復元方法及びその装置 | |
| KR100982835B1 (ko) | 영상 프레임의 디블로킹 방법 및 장치 | |
| KR100498445B1 (ko) | 성능향상을 위한 동영상 압축방법 및 장치 | |
| KR100711025B1 (ko) | 동영상 표준 부호화 방식의 성능 향상을 위한 잔여신호 필터링 방법 | |
| Chang et al. | Error accumulation of repetitive image coding | |
| JP2003516054A (ja) | Dctドメインにおけるブロッキングアーティファクトの減少方法及び装置 | |
| JP3532440B2 (ja) | コサイン変換と量子化装置、影像圧縮装置の乗法演算節減方法、逆量子化と逆コサイン変換装置、及び影像減圧装置の乗法演算節減方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040521 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040521 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060728 |
|
| A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20061030 |
|
| A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20061102 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20070323 |