WO2005032117A3 - 8x8 transform and quantization - Google Patents

8x8 transform and quantization Download PDF

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Publication number
WO2005032117A3
WO2005032117A3 PCT/US2004/031480 US2004031480W WO2005032117A3 WO 2005032117 A3 WO2005032117 A3 WO 2005032117A3 US 2004031480 W US2004031480 W US 2004031480W WO 2005032117 A3 WO2005032117 A3 WO 2005032117A3
Authority
WO
WIPO (PCT)
Prior art keywords
quantization
look
transform
right shift
integer matrices
Prior art date
Application number
PCT/US2004/031480
Other languages
French (fr)
Other versions
WO2005032117A2 (en
Inventor
Minhua Nmi Zhou
Original Assignee
Texas Instruments Inc
Minhua Nmi Zhou
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Texas Instruments Inc, Minhua Nmi Zhou filed Critical Texas Instruments Inc
Priority to JP2006528250A priority Critical patent/JP2007507183A/en
Publication of WO2005032117A2 publication Critical patent/WO2005032117A2/en
Publication of WO2005032117A3 publication Critical patent/WO2005032117A3/en

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
    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • 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
    • 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
    • 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
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding

Abstract

Low complexity video compression has 8x8 block with transforms using 8x8 integer matrices and quantization with look up table scalar plus constant right shift for all quantization steps. Inverse quantization also a look up table scalar plus right shift dependent upon the quantization step and inverse transform using the 8x8 integer matrices.
PCT/US2004/031480 2003-09-24 2004-09-24 8x8 transform and quantization WO2005032117A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006528250A JP2007507183A (en) 2003-09-24 2004-09-24 8x8 transform and quantization

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50557503P 2003-09-24 2003-09-24
US60/505,575 2003-09-24

Publications (2)

Publication Number Publication Date
WO2005032117A2 WO2005032117A2 (en) 2005-04-07
WO2005032117A3 true WO2005032117A3 (en) 2005-06-02

Family

ID=34393037

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/031480 WO2005032117A2 (en) 2003-09-24 2004-09-24 8x8 transform and quantization

Country Status (4)

Country Link
JP (1) JP2007507183A (en)
KR (1) KR20060135613A (en)
CN (1) CN1856997A (en)
WO (1) WO2005032117A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110944179B (en) * 2018-11-18 2022-01-25 北京达佳互联信息技术有限公司 Video data decoding method and device

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8385424B2 (en) 2006-06-26 2013-02-26 Qualcomm Incorporated Reduction of errors during computation of inverse discrete cosine transform
US8571340B2 (en) * 2006-06-26 2013-10-29 Qualcomm Incorporated Efficient fixed-point approximations of forward and inverse discrete cosine transforms
TWI336444B (en) * 2006-06-26 2011-01-21 Qualcomm Inc Efficient fixed-point approximations of forward and inverse discrete cosine transforms
US8300698B2 (en) 2006-10-23 2012-10-30 Qualcomm Incorporated Signalling of maximum dynamic range of inverse discrete cosine transform
US8331454B2 (en) * 2007-11-12 2012-12-11 Cisco Technology, Inc. Integer transform function for video compression systems
CN102625091B (en) * 2011-01-27 2015-01-07 联合信源数字音视频技术（北京）有限公司 Inter prediction method based on AVS
WO2012177027A2 (en) * 2011-06-18 2012-12-27 삼성전자 주식회사 Method and device for the transformation and method and device for the reverse transformation of images
EP3122049A4 (en) * 2014-03-19 2017-11-08 Nec Corporation Image encoding apparatus, image encoding method, and image encoding program
CN104683800B (en) * 2015-02-11 2017-12-15 广州柯维新数码科技有限公司 Parallel quantization and quantification method based on AVS
CN109324778B (en) * 2018-12-04 2020-03-27 深圳市华星光电半导体显示技术有限公司 Compression method for compensation pressure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5506844A (en) * 1994-05-20 1996-04-09 Compression Labs, Inc. Method for configuring a statistical multiplexer to dynamically allocate communication channel bandwidth
US20030035587A1 (en) * 2001-06-29 2003-02-20 Jeongnam Youn Decoding of predicted AC coefficient without division

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5506844A (en) * 1994-05-20 1996-04-09 Compression Labs, Inc. Method for configuring a statistical multiplexer to dynamically allocate communication channel bandwidth
US20030035587A1 (en) * 2001-06-29 2003-02-20 Jeongnam Youn Decoding of predicted AC coefficient without division

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110944179B (en) * 2018-11-18 2022-01-25 北京达佳互联信息技术有限公司 Video data decoding method and device

Also Published As

Publication number Publication date
WO2005032117A2 (en) 2005-04-07
KR20060135613A (en) 2006-12-29
JP2007507183A (en) 2007-03-22
CN1856997A (en) 2006-11-01

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