CN100450184C - 运用于图像编码和视频编码的离散余弦变换方法 - Google Patents
运用于图像编码和视频编码的离散余弦变换方法 Download PDFInfo
- Publication number
- CN100450184C CN100450184C CNB2006100524178A CN200610052417A CN100450184C CN 100450184 C CN100450184 C CN 100450184C CN B2006100524178 A CNB2006100524178 A CN B2006100524178A CN 200610052417 A CN200610052417 A CN 200610052417A CN 100450184 C CN100450184 C CN 100450184C
- Authority
- CN
- China
- Prior art keywords
- discrete cosine
- cosine transform
- matrix
- butterfly structure
- inverse discrete
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 70
- 230000001131 transforming effect Effects 0.000 title 1
- 239000011159 matrix material Substances 0.000 claims description 224
- 230000009466 transformation Effects 0.000 claims description 20
- 238000012958 reprocessing Methods 0.000 claims description 18
- 238000012545 processing Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000007781 pre-processing Methods 0.000 description 4
- 208000037170 Delayed Emergence from Anesthesia Diseases 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
- G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mathematical Analysis (AREA)
- Data Mining & Analysis (AREA)
- Computational Mathematics (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Optimization (AREA)
- Theoretical Computer Science (AREA)
- Discrete Mathematics (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Algebra (AREA)
- Complex Calculations (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Description
Claims (16)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2006100524178A CN100450184C (zh) | 2006-07-12 | 2006-07-12 | 运用于图像编码和视频编码的离散余弦变换方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2006100524178A CN100450184C (zh) | 2006-07-12 | 2006-07-12 | 运用于图像编码和视频编码的离散余弦变换方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1889690A CN1889690A (zh) | 2007-01-03 |
CN100450184C true CN100450184C (zh) | 2009-01-07 |
Family
ID=37578948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2006100524178A Active CN100450184C (zh) | 2006-07-12 | 2006-07-12 | 运用于图像编码和视频编码的离散余弦变换方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN100450184C (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101106714A (zh) * | 2007-07-29 | 2008-01-16 | 浙江大学 | 应用于视频和图像处理的变换方法 |
US8654833B2 (en) * | 2007-09-26 | 2014-02-18 | Qualcomm Incorporated | Efficient transformation techniques for video coding |
CN102387367B (zh) * | 2011-11-08 | 2014-01-08 | 复旦大学 | 适用于多种视频标准、多尺寸二维整数余弦变换的通用方法 |
CN103488614A (zh) * | 2013-09-22 | 2014-01-01 | 浙江大学 | 数字信号处理中的变换的方法和装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000099495A (ja) * | 1998-09-15 | 2000-04-07 | Winbond Electron Corp | 乗法演算節減可能な二次元離散コサイン変換及びその逆変換の実行方法 |
CN1518706A (zh) * | 2001-05-16 | 2004-08-04 | �����ɷ� | 使用蝶形处理器对离散余弦变换编码和计算的设备和方法 |
-
2006
- 2006-07-12 CN CNB2006100524178A patent/CN100450184C/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000099495A (ja) * | 1998-09-15 | 2000-04-07 | Winbond Electron Corp | 乗法演算節減可能な二次元離散コサイン変換及びその逆変換の実行方法 |
CN1518706A (zh) * | 2001-05-16 | 2004-08-04 | �����ɷ� | 使用蝶形处理器对离散余弦变换编码和计算的设备和方法 |
Non-Patent Citations (3)
Title |
---|
Fast Multiplierless Approximations of the DCT With the Lifting Scheme. Jie Liang,Trac D. Tran.IEEE TRANSACTIONS ON SIGNAL PROCESSING,Vol.49 No.12. 2001 * |
Fast Multiplierless Approximations of the DCT With the Lifting Scheme.JieLiang Trac D. Tran.IEEE TRANSACTIONS ON SIGNAL PROCESSING * |
Low Complexity and High FidelityFixed-Point Multiplier-less DCT/IDCT ImplementationScheme. Ci-Xun Zhang,Lu Yu.ISO/IEC JTC1/SC29/WG11 MPEG2006/M12936. 2006 * |
Also Published As
Publication number | Publication date |
---|---|
CN1889690A (zh) | 2007-01-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR101036731B1 (ko) | 손실 및 무손실 2차원 데이터 압축을 위한 가역 변환 | |
RU2460129C2 (ru) | Структура преобразования с масштабированными и немасштабированными интерфейсами | |
US8548265B2 (en) | Fast multiplierless integer invertible transforms | |
US7127482B2 (en) | Performance optimized approach for efficient downsampling operations | |
CA2633897C (en) | Transforms with common factors | |
EP1359546A1 (en) | 2-D transforms for image and video coding | |
US7689052B2 (en) | Multimedia signal processing using fixed-point approximations of linear transforms | |
US20140010284A1 (en) | Image transform and inverse transform method, and image encoding and decoding device using same | |
AU748947C (en) | Method and apparatus for inverse quantization of MPEG-4 video | |
CA2654228A1 (en) | Efficient fixed-point approximations of forward and inverse discrete cosine transforms | |
CN100563337C (zh) | 基于avs的整数变换量化和整数反变换反量化方法 | |
Boussakta et al. | Fast algorithm for the 3-D DCT-II | |
Joshi et al. | Efficient large size transforms for high-performance video coding | |
CN100450184C (zh) | 运用于图像编码和视频编码的离散余弦变换方法 | |
US8417045B2 (en) | Mechanism for processing order-16 discrete cosine transforms | |
US20050256916A1 (en) | Fast video codec transform implementations | |
CN101605259B (zh) | 对多媒体数据进行变换编、解码的装置及方法 | |
Brahimi et al. | An efficient fast integer DCT transform for images compression with 16 additions only | |
CN100490539C (zh) | 运用于图像编码和视频编码的离散余弦变换的方法 | |
Kamisli | Lossless image and intra-frame compression with integer-to-integer DST | |
US20050141776A1 (en) | Low power, high performance transform coprocessor for video compression | |
Chen et al. | Design of non-separable transforms for directional 2-D sources | |
CN102355580B (zh) | 运用于图像编码和视频编码的六角变换方法和装置 | |
CN100349466C (zh) | 视频或图像压缩中准能量守恒变换的方法和装置 | |
CN102413331A (zh) | 图像或视频的编码方法 |
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 | ||
ASS | Succession or assignment of patent right |
Owner name: HUAWEI TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: ZHEJIANG UNIVERSITY Effective date: 20090417 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20090417 Address after: Bantian HUAWEI headquarters office building, Longgang District, Shenzhen, Guangdong Patentee after: HUAWEI TECHNOLOGIES Co.,Ltd. Address before: No. 38, Zhejiang Road, Hangzhou, Zhejiang, Xihu District Patentee before: Zhejiang University |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20211228 Address after: 450046 Floor 9, building 1, Zhengshang Boya Plaza, Longzihu wisdom Island, Zhengdong New Area, Zhengzhou City, Henan Province Patentee after: xFusion Digital Technologies Co., Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |