JPH09511630A - 多層化された符号表を有するベクトル変換符号器および動的なビット割当て - Google Patents
多層化された符号表を有するベクトル変換符号器および動的なビット割当てInfo
- Publication number
- JPH09511630A JPH09511630A JP7525920A JP52592095A JPH09511630A JP H09511630 A JPH09511630 A JP H09511630A JP 7525920 A JP7525920 A JP 7525920A JP 52592095 A JP52592095 A JP 52592095A JP H09511630 A JPH09511630 A JP H09511630A
- Authority
- JP
- Japan
- Prior art keywords
- vector
- codebook
- stage
- image
- distortion
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T9/00—Image coding
- G06T9/008—Vector quantisation
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.像の符号化のために符号表を発生する方法において、 複数の訓練像を、ベクトル変換定義域内のそれぞれのベクトル構成成分に変換 し、 各ベクトル構成成分ごとに第1の中心値を計算し、 各ベクトル構成成分ごとに第2の中心値を計算し、 前記訓練像の平均値との引き算演算を使用し、 前記ベクトル構成成分および第1中心値を使用する訓練アルゴリズムの実行に より複数の符号表要素を有する第1の符号表群を導出し、そして 前記ベクトル構成成分および第2中心値を使用する訓練アルゴリズムの実行に より複数の符号表要素を有する第2の符号表群を導出する諸段階を含む方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/223,206 | 1994-04-05 | ||
US08/223,206 US5521988A (en) | 1994-04-05 | 1994-04-05 | Vector transform coder with multi-layered codebooks and dynamic bit allocation |
PCT/US1995/004142 WO1995027261A1 (en) | 1994-04-05 | 1995-04-04 | Vector transform coder with multi-layered codebooks and dynamic bit allocation |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09511630A true JPH09511630A (ja) | 1997-11-18 |
JP3411579B2 JP3411579B2 (ja) | 2003-06-03 |
Family
ID=22835521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52592095A Expired - Fee Related JP3411579B2 (ja) | 1994-04-05 | 1995-04-04 | 多層化された符号表を有するベクトル変換符号器および動的なビット割当て |
Country Status (5)
Country | Link |
---|---|
US (1) | US5521988A (ja) |
EP (1) | EP0754329B1 (ja) |
JP (1) | JP3411579B2 (ja) |
DE (1) | DE69531293T2 (ja) |
WO (1) | WO1995027261A1 (ja) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI92272C (fi) * | 1992-05-20 | 1994-10-10 | Valtion Teknillinen | Kuvansiirtojärjestelmän tiivistyskoodausmenetelmä |
EP1158453B1 (en) * | 1993-12-10 | 2008-08-27 | Ricoh Company, Ltd. | Image extraction method and apparatus, and image recognition method and apparatus, for extracting/recognizing specific image from input image signal |
US5778192A (en) * | 1995-10-26 | 1998-07-07 | Motorola, Inc. | Method and device for optimal bit allocation between different sources of information in digital video compression |
US5909513A (en) * | 1995-11-09 | 1999-06-01 | Utah State University | Bit allocation for sequence image compression |
US5889891A (en) * | 1995-11-21 | 1999-03-30 | Regents Of The University Of California | Universal codebook vector quantization with constrained storage |
US6215910B1 (en) * | 1996-03-28 | 2001-04-10 | Microsoft Corporation | Table-based compression with embedded coding |
US6571016B1 (en) | 1997-05-05 | 2003-05-27 | Microsoft Corporation | Intra compression of pixel blocks using predicted mean |
US6404923B1 (en) * | 1996-03-29 | 2002-06-11 | Microsoft Corporation | Table-based low-level image classification and compression system |
US6173317B1 (en) | 1997-03-14 | 2001-01-09 | Microsoft Corporation | Streaming and displaying a video stream with synchronized annotations over a computer network |
US6621935B1 (en) * | 1999-12-03 | 2003-09-16 | Microsoft Corporation | System and method for robust image representation over error-prone channels |
US6968092B1 (en) * | 2001-08-21 | 2005-11-22 | Cisco Systems Canada Co. | System and method for reduced codebook vector quantization |
US7453936B2 (en) * | 2001-11-09 | 2008-11-18 | Sony Corporation | Transmitting apparatus and method, receiving apparatus and method, program and recording medium, and transmitting/receiving system |
KR100703740B1 (ko) * | 2004-10-21 | 2007-04-05 | 삼성전자주식회사 | 다 계층 기반의 모션 벡터를 효율적으로 부호화하는 방법및 장치 |
WO2006080663A1 (en) * | 2004-10-21 | 2006-08-03 | Samsung Electronics Co., Ltd. | Method and apparatus for effectively encoding multi-layered motion vectors |
US10485088B1 (en) * | 2018-09-25 | 2019-11-19 | Fermi Research Alliance, Llc | Radio frequency tuning of dressed multicell cavities using pressurized balloons |
US10645793B2 (en) * | 2018-09-25 | 2020-05-05 | Fermi Research Alliance, Llc | Automatic tuning of dressed multicell cavities using pressurized balloons |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0314018B1 (en) * | 1987-10-30 | 1993-09-01 | Nippon Telegraph And Telephone Corporation | Method and apparatus for multiplexed vector quantization |
KR930004311B1 (ko) * | 1989-04-18 | 1993-05-22 | 미쯔비시덴끼 가부시끼가이샤 | 동화상 부호화 복호화장치 |
US5150209A (en) * | 1990-05-11 | 1992-09-22 | Picturetel Corporation | Hierarchical entropy coded lattice threshold quantization encoding method and apparatus for image and video compression |
US5235418A (en) * | 1991-11-19 | 1993-08-10 | Scientific-Atlanta, Inc. | Method and apparatus for low frequency removal in vector quantization |
-
1994
- 1994-04-05 US US08/223,206 patent/US5521988A/en not_active Expired - Lifetime
-
1995
- 1995-04-04 JP JP52592095A patent/JP3411579B2/ja not_active Expired - Fee Related
- 1995-04-04 EP EP95915017A patent/EP0754329B1/en not_active Expired - Lifetime
- 1995-04-04 WO PCT/US1995/004142 patent/WO1995027261A1/en active IP Right Grant
- 1995-04-04 DE DE69531293T patent/DE69531293T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP3411579B2 (ja) | 2003-06-03 |
EP0754329A4 (en) | 2000-08-02 |
DE69531293T2 (de) | 2004-01-29 |
WO1995027261A1 (en) | 1995-10-12 |
EP0754329A1 (en) | 1997-01-22 |
EP0754329B1 (en) | 2003-07-16 |
US5521988A (en) | 1996-05-28 |
DE69531293D1 (de) | 2003-08-21 |
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