WO2006034603A1 - Video image encoding method - Google Patents
Video image encoding method Download PDFInfo
- Publication number
- WO2006034603A1 WO2006034603A1 PCT/CN2004/001111 CN2004001111W WO2006034603A1 WO 2006034603 A1 WO2006034603 A1 WO 2006034603A1 CN 2004001111 W CN2004001111 W CN 2004001111W WO 2006034603 A1 WO2006034603 A1 WO 2006034603A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- video image
- transform
- image encoding
- encoding method
- inverse
- Prior art date
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
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
Definitions
- the present invention relates to the field of video processing, and more particularly to a video image encoding method.
- T refers to the 8x8 DCT transform of image data or predictive difference data.
- the corresponding inverse transform, quantization and inverse quantization methods are given.
- the transformation matrix element is simple, and only the addition and shift operations are performed in the conversion meter processing, and the hardware implementation is easy.
- the method has been applied to the video compression standard H.264 & MPEG-4 (Part 10), and its coding block diagram is shown in FIG. 3. Shown.
- the purpose of the invention is to provide a video image coding method based on 4x4 DCT-like integer transform.
- the present invention adopts the following technical solutions:
- a video image encoding method includes the following steps:
- the converter performs transform processing on the input prediction difference data
- the inverse transformer performs inverse transform processing on the inverse quantized coefficients
- the method is characterized in that the step b is performed by using a 2D 4x4 DCT-li.ke integer transform method to transform the video image, and the transform calculation adopts the following formula:
- Step e of the household inverting the video image by using the 2D 4x4 IDCT-like inverse transform method
- the inverse transformation uses the following formula:
- X C T ⁇ Y®E)C
- X is the image data matrix or the predicted difference data matrix
- Y is the corresponding transform coefficient matrix
- ⁇ 3 ⁇ 4 indicates the multiplication of the elements of the two matrices
- E is a Telescopic matrix.
- the video image coding method can be approximated as follows:
- the video image coding method can be approximated as follows: - 3 2-2
- the video image coding method can be approximated as follows:
- C k is a positive integer
- the integer transform method given by the present invention is comparable in computational performance to the prior art.
- the transform process only involves addition and multiplication, but is closer to the transform performance of the DCT, and thus has better decorrelation performance similar to DCT. , with better conversion performance, can get better video compression.
- Figure 1 is a schematic diagram of a DCT-based video coding framework
- FIG. 2 is a schematic diagram of H.263 video coding in the prior art
- FIG. 3 is a schematic diagram of a H.264 & MPEG-4 (Part 10) video coding framework
- FIG. 4 is a schematic diagram of encoding processing of a video image according to the present invention.
- Figure 5 is a flow chart of the encoding process of the video image of the present invention.
- FIG. 4 and FIG. 5 it is a schematic diagram and a flow chart of encoding processing of a video image according to the present invention. As can be seen from the figure, the present invention mainly includes the following steps:
- the converter performs transform processing on the input prediction difference data
- the inverse transformer performs inverse transform processing on the inverse quantized coefficients
- a new 2D 4x4 DCT-like integer transform method and corresponding quantization method are proposed by using a new transform method and corresponding inverse transform method, which is described below:
- X is a 4x4 image data matrix or a prediction difference data matrix
- Y is a corresponding 4x4 transform coefficient matrix
- T represents a transpose of the matrix.
- the 2D 4x4 inverse DCT transform method is:
- the multiplication process can be incorporated into the quantization process of the transform coefficients.
- the error with DCT is ⁇ - ⁇ 21
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Image Processing (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB200480032962XA CN100440978C (zh) | 2004-09-28 | 2004-09-28 | 一种视频图像编码方法 |
PCT/CN2004/001111 WO2006034603A1 (en) | 2004-09-28 | 2004-09-28 | Video image encoding method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2004/001111 WO2006034603A1 (en) | 2004-09-28 | 2004-09-28 | Video image encoding method |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2006034603A1 true WO2006034603A1 (en) | 2006-04-06 |
WO2006034603A8 WO2006034603A8 (en) | 2006-06-29 |
Family
ID=36118553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2004/001111 WO2006034603A1 (en) | 2004-09-28 | 2004-09-28 | Video image encoding method |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN100440978C (zh) |
WO (1) | WO2006034603A1 (zh) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101848392A (zh) * | 2010-05-07 | 2010-09-29 | 北京大学深圳研究生院 | 一种视频编解码装置及其整数变换和反变换的方法 |
CN103379317A (zh) * | 2012-04-14 | 2013-10-30 | 朱洪波 | 视频编码近正交整数变换 |
CN104067621A (zh) * | 2011-11-07 | 2014-09-24 | Vid拓展公司 | 使用偶数-奇数整数变换后台的视频和数据处理 |
CN106954070A (zh) * | 2017-04-28 | 2017-07-14 | 河南工程学院 | 一种滑动像素块整数dct核心矩阵变换运动补偿器及方法 |
CN107249130A (zh) * | 2017-07-24 | 2017-10-13 | 河南工程学院 | 一种用于数字视频编解码的3乘3整数dct变换量化器 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101795402B (zh) * | 2009-02-04 | 2012-12-12 | 华为技术有限公司 | 宏块的划分方法及装置 |
CN104486629B (zh) * | 2014-12-16 | 2017-10-20 | 北京金山云网络技术有限公司 | H.265视频编码中变换与反变换的快速实施方法 |
CN111050168B (zh) * | 2019-12-27 | 2021-07-13 | 浙江大华技术股份有限公司 | 仿射预测方法及其相关装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0723381A (ja) * | 1993-06-23 | 1995-01-24 | Nec Corp | 画像の復号化方法及びその復号化装置 |
CN1445999A (zh) * | 2003-03-26 | 2003-10-01 | 浙江大学 | 运用于图象编码和视频编码的整数变换方法和装置 |
CN1455599A (zh) * | 2002-05-02 | 2003-11-12 | 微软公司 | 图像和视频编码的2-d变换 |
CN1533184A (zh) * | 2003-03-24 | 2004-09-29 | 华为技术有限公司 | 一种视频图象编码方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0777387B1 (en) * | 1995-12-06 | 2003-08-13 | Harman/Becker Automotive Systems (XSYS Division) GmbH | Method and apparatus for encoding digital video signals |
US6115070A (en) * | 1997-06-12 | 2000-09-05 | International Business Machines Corporation | System and method for DCT domain inverse motion compensation using shared information |
KR100386639B1 (ko) * | 2000-12-04 | 2003-06-02 | 주식회사 오픈비주얼 | 정규화된 역양자화기를 이용한 영상 및 동영상의 복원 방법 |
-
2004
- 2004-09-28 WO PCT/CN2004/001111 patent/WO2006034603A1/zh active Application Filing
- 2004-09-28 CN CNB200480032962XA patent/CN100440978C/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0723381A (ja) * | 1993-06-23 | 1995-01-24 | Nec Corp | 画像の復号化方法及びその復号化装置 |
CN1455599A (zh) * | 2002-05-02 | 2003-11-12 | 微软公司 | 图像和视频编码的2-d变换 |
CN1533184A (zh) * | 2003-03-24 | 2004-09-29 | 华为技术有限公司 | 一种视频图象编码方法 |
CN1445999A (zh) * | 2003-03-26 | 2003-10-01 | 浙江大学 | 运用于图象编码和视频编码的整数变换方法和装置 |
Non-Patent Citations (1)
Title |
---|
HALLAPURO A. AND KARCZEWICZ M.: "Low Complexity Transform and Quantization - Part I: Basic Implementation", ISO/IEC JTC1/SC29/WG11 AND ITU-T SG16 Q.6 DOCUMENT JTV-B038, January 2002 (2002-01-01) * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101848392A (zh) * | 2010-05-07 | 2010-09-29 | 北京大学深圳研究生院 | 一种视频编解码装置及其整数变换和反变换的方法 |
CN104067621A (zh) * | 2011-11-07 | 2014-09-24 | Vid拓展公司 | 使用偶数-奇数整数变换后台的视频和数据处理 |
CN104067621B (zh) * | 2011-11-07 | 2018-03-27 | Vid拓展公司 | 使用偶数‑奇数整数变换后台的视频和数据处理的设备和方法 |
CN103379317A (zh) * | 2012-04-14 | 2013-10-30 | 朱洪波 | 视频编码近正交整数变换 |
CN106954070A (zh) * | 2017-04-28 | 2017-07-14 | 河南工程学院 | 一种滑动像素块整数dct核心矩阵变换运动补偿器及方法 |
CN106954070B (zh) * | 2017-04-28 | 2023-04-11 | 河南工程学院 | 一种滑动像素块整数dct核心矩阵变换运动补偿器及方法 |
CN107249130A (zh) * | 2017-07-24 | 2017-10-13 | 河南工程学院 | 一种用于数字视频编解码的3乘3整数dct变换量化器 |
CN107249130B (zh) * | 2017-07-24 | 2023-04-07 | 河南工程学院 | 一种用于数字视频编解码的3乘3整数dct变换量化器 |
Also Published As
Publication number | Publication date |
---|---|
CN100440978C (zh) | 2008-12-03 |
CN1879419A (zh) | 2006-12-13 |
WO2006034603A8 (en) | 2006-06-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20200260103A1 (en) | System and methodology for video compression | |
KR101958842B1 (ko) | 내부 예측을 위한 적응적 이산 코사인 변환 및 이산 사인 변환을 이용한 낮은 복잡도의 변환 코딩 | |
JP4755095B2 (ja) | 映像符号化の符号化側/復号化側に使用される双方向予測方法 | |
Bankoski et al. | Technical overview of VP8, an open source video codec for the web | |
US8582904B2 (en) | Method of second order prediction and video encoder and decoder using the same | |
KR101315600B1 (ko) | 미디어 코딩을 위한 4×4 변환 | |
TWI230547B (en) | Low-complexity spatial downscaling video transcoder and method thereof | |
WO1999023834A1 (en) | Method for converting digital signal and apparatus for converting digital signal | |
WO2016058357A1 (zh) | 视频处理方法、编码设备和解码设备 | |
JP2003250157A (ja) | 静止映像及び動映像を符号化/復号化するための変換係数の最適走査方法 | |
KR20120026603A (ko) | 미디어 코딩을 위한 4×4 변환 | |
KR20120040208A (ko) | 미디어 데이터 코딩을 위한 8-포인트 변환 | |
WO2011110088A1 (zh) | 一种视频预测编码方法和装置 | |
CN101848383A (zh) | 对mpeg2格式视频进行降采样解码的方法 | |
TW200952499A (en) | Apparatus and method for computationally efficient intra prediction in a video coder | |
CN103442228B (zh) | 从h.264/avc标准到hevc标准的快速帧内转码方法及其转码器 | |
TW200307463A (en) | Animation encoding method, animation encoding device, and animation encoding processing program | |
KR20070028404A (ko) | 픽처를 저장하는 방법, 비디오 복호기, 비디오 부호기,휴대 장치 및 컴퓨터 프로그램 제품 | |
WO2006034603A1 (en) | Video image encoding method | |
WO2006047936A1 (en) | A method for determining the condition in zero block prejudgment and for prejudging zero block | |
WO2006074043A2 (en) | Method and apparatus for providing motion estimation with weight prediction | |
JP2004080786A (ja) | 離散コサイン変換係数を参照する動き推定方法及び装置 | |
WO2022252222A1 (zh) | 编码方法和编码装置 | |
CN100372382C (zh) | 一种视频图象编码方法 | |
JPH089375A (ja) | 逆離散コサイン変換不一致制御装置および画像符号化装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200480032962.X Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
CFP | Corrected version of a pamphlet front page |
Free format text: UNDER (54) PUBLISHED TITLE IN CHINESE REPLACED BY CORRECT TITLE |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 04762244 Country of ref document: EP Kind code of ref document: A1 |