AU7474591A - Digital image coding with quantization level computation - Google Patents

Digital image coding with quantization level computation

Info

Publication number
AU7474591A
AU7474591A AU74745/91A AU7474591A AU7474591A AU 7474591 A AU7474591 A AU 7474591A AU 74745/91 A AU74745/91 A AU 74745/91A AU 7474591 A AU7474591 A AU 7474591A AU 7474591 A AU7474591 A AU 7474591A
Authority
AU
Australia
Prior art keywords
digital image
image coding
quantization level
level computation
computation
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.)
Abandoned
Application number
AU74745/91A
Inventor
Alain Delpuch
Tristan Savatier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technicolor SA
Original Assignee
Thomson Consumer Electronics SA
Thomson Consumer Electronics Inc
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 Thomson Consumer Electronics SA, Thomson Consumer Electronics Inc filed Critical Thomson Consumer Electronics SA
Publication of AU7474591A publication Critical patent/AU7474591A/en
Abandoned legal-status Critical Current

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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer
    • 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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/107—Selection of coding mode or of prediction mode between spatial and temporal predictive coding, e.g. picture refresh
    • 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
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • 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
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • 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
    • H04N19/60—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
    • 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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/146—Data rate or code amount at the encoder output
    • 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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
AU74745/91A 1990-03-15 1991-03-09 Digital image coding with quantization level computation Abandoned AU7474591A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US49409890A 1990-03-15 1990-03-15
US494098 1990-03-15

Publications (1)

Publication Number Publication Date
AU7474591A true AU7474591A (en) 1991-10-10

Family

ID=23963032

Family Applications (1)

Application Number Title Priority Date Filing Date
AU74745/91A Abandoned AU7474591A (en) 1990-03-15 1991-03-09 Digital image coding with quantization level computation

Country Status (2)

Country Link
AU (1) AU7474591A (en)
WO (1) WO1991014339A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5038209A (en) * 1990-09-27 1991-08-06 At&T Bell Laboratories Adaptive buffer/quantizer control for transform video coders
US5303058A (en) * 1990-10-22 1994-04-12 Fujitsu Limited Data processing apparatus for compressing and reconstructing image data
SE468737B (en) * 1991-11-15 1993-03-08 Televerket PROCEDURE AND DEVICE FOR IMAGE Coding WITH STEP HEIGHT SELECTION IN THE QUANTIZER
WO1993012613A1 (en) * 1991-12-13 1993-06-24 Avid Technology, Inc. Quantization table adjustment
US5355450A (en) * 1992-04-10 1994-10-11 Avid Technology, Inc. Media composer with adjustable source material compression
EP1555817B1 (en) * 1992-01-29 2008-07-23 Mitsubishi Denki Kabushiki Kaisha High-efficiency encoder and video information recording/reproducing apparatus
US6870884B1 (en) 1992-01-29 2005-03-22 Mitsubishi Denki Kabushiki Kaisha High-efficiency encoder and video information recording/reproducing apparatus
EP0694241A4 (en) * 1993-04-16 1996-05-29 Data Translation Inc Adaptive video decompression
CN1125031A (en) * 1993-04-16 1996-06-19 数据翻译公司 Adaptive video compression using variable quantization
JP3338781B2 (en) * 1998-06-23 2002-10-28 エヌイーシー東芝スペースシステム株式会社 Compression transmission method and apparatus, reception expansion method and apparatus, data communication method and system, information storage medium
US6724818B1 (en) * 2000-07-17 2004-04-20 Telefonaktiebolaget Lm Ericsson (Publ) Alternative block orders for better prediction

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4394774A (en) * 1978-12-15 1983-07-19 Compression Labs, Inc. Digital video compression system and methods utilizing scene adaptive coding with rate buffer feedback
FR2597282B1 (en) * 1986-04-11 1995-03-17 Guichard Jacques QUANTIFICATION METHOD IN TRANSFORMATION CODING FOR TRANSMISSION OF IMAGE SIGNALS
US4704628A (en) * 1986-07-16 1987-11-03 Compression Labs, Inc. Combined intraframe and interframe transform coding system
FR2625635B1 (en) * 1987-12-30 1994-04-15 Thomson Grand Public ADAPTIVE METHOD OF ENCODING AND DECODING A SUITE OF IMAGES BY TRANSFORMATION, AND DEVICES FOR CARRYING OUT SAID METHOD
FR2633133B1 (en) * 1988-06-17 1990-10-05 Thomson Csf METHOD FOR CONTROLLING THE FILLING OF THE BUFFER MEMORY OF AN IMAGE ENCODER, AND CONTROLLING DEVICE FOR CARRYING OUT SAID METHOD

Also Published As

Publication number Publication date
WO1991014339A1 (en) 1991-09-19

Similar Documents

Publication Publication Date Title
EP0485105A3 (en) Coding for digital transmission
GB9523042D0 (en) Digital coding
DE69132268T2 (en) Image signal encoder / decoder with adaptive quantization
GB9322260D0 (en) Digital video processor
AU1996292A (en) Continuous-tone image compression
AU8663891A (en) Signal coding
EP0515138A3 (en) Digital speech coder
EP0616471A3 (en) Coding of digital signals.
AU7135191A (en) Coding system
EP0512854A3 (en) Video signal coding
DE69216344T2 (en) Digital image plate coding process
GB2238445B (en) Digital video coding
AU1421692A (en) Digital interface unit
AU7474591A (en) Digital image coding with quantization level computation
EP0620685A3 (en) Digital video signal encoding.
GB9312124D0 (en) Encoding digital data
GB2077538B (en) Digital transducer based on the gray's encoding
EP0349677A3 (en) Image coding system
GB2262857B (en) Digital encoder
GB9421770D0 (en) Digital image coding
EP0505916A3 (en) Digital copier
GB9326582D0 (en) Image coding
AU631975B2 (en) Encoding image data
GB9018170D0 (en) Digital video data compression
AU5477796A (en) Coding/decoding a digital image