GB201223385D0 - Method and devices for encoding a sequence of images into a scalable video bit-stream, and decoding a corresponding scalable video bit-stream - Google Patents

Method and devices for encoding a sequence of images into a scalable video bit-stream, and decoding a corresponding scalable video bit-stream

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Publication number
GB201223385D0
GB201223385D0 GB201223385A GB201223385A GB201223385D0 GB 201223385 D0 GB201223385 D0 GB 201223385D0 GB 201223385 A GB201223385 A GB 201223385A GB 201223385 A GB201223385 A GB 201223385A GB 201223385 D0 GB201223385 D0 GB 201223385D0
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GB
United Kingdom
Prior art keywords
encoding
image
merit
coefficient
enhancement
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
Application number
GB201223385A
Other versions
GB2499874A (en
GB2499874B (en
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.)
Canon Inc
Original Assignee
Canon 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
Priority claimed from GB1203706.5A external-priority patent/GB2499844B/en
Priority claimed from GB201206527A external-priority patent/GB2501115B/en
Priority claimed from GB1215430.8A external-priority patent/GB2505643B/en
Priority claimed from GBGB1217554.3A external-priority patent/GB201217554D0/en
Application filed by Canon Inc filed Critical Canon Inc
Publication of GB201223385D0 publication Critical patent/GB201223385D0/en
Priority to PCT/EP2013/054198 priority Critical patent/WO2013128010A2/en
Publication of GB2499874A publication Critical patent/GB2499874A/en
Application granted granted Critical
Publication of GB2499874B publication Critical patent/GB2499874B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • 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
    • H04N19/33—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability in the spatial domain
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • 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
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

Abstract

A method comprises encoding an image video sequence into a scalable video coding (SVC, e.g. for High Efficiency Video Coding, HEVC) base layer (BL) and enhancement layer (EL) images, including encoding an enhancement original INTRA image using intra-frame prediction only (as well as at least one other enhancement image, an INTER image, using inter-frame prediction) by: obtaining a residual image as a difference between the enhancement original INTRA image and a decoded corresponding encoded base layer image, the residual comprising blocks of pixels, each having a block type; transforming pixel values for a block into a set of coefficients each having a coefficient type; determining an initial coefficient encoding merit for each coefficient type; selecting coefficients based on the corresponding initial coefficient encoding merit and a predetermined block merit; quantizing selected coefficients into quantized symbols; and encoding the quantized symbols. Also claimed are related methods comprising: residual enhancement image segmentation selection to minimise estimated encoding cost, based on a rate measure; use of a Generalized Residual Inter-Layer Prediction (GRILP) mode; and selection of coefficient types for which a coefficient encoding merit prior to encoding is greater than a predetermined block merit.
GB1223385.4A 2012-03-02 2012-12-24 Method and devices for encoding a sequence of images into a scalable video bit-stream, and decoding a corresponding scalable video bit-stream Expired - Fee Related GB2499874B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2013/054198 WO2013128010A2 (en) 2012-03-02 2013-03-01 Method and devices for encoding a sequence of images into a scalable video bit-stream, and decoding a corresponding scalable video bit-stream

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB1203706.5A GB2499844B (en) 2012-03-02 2012-03-02 Methods for encoding and decoding an image, and corresponding devices
GB201206527A GB2501115B (en) 2012-04-13 2012-04-13 Methods for segmenting and encoding an image, and corresponding devices
GB1215430.8A GB2505643B (en) 2012-08-30 2012-08-30 Method and device for determining prediction information for encoding or decoding at least part of an image
GB1217464.5A GB2499865B (en) 2012-03-02 2012-09-28 Method and devices for encoding a sequence of images into a scalable video bit-stream, and decoding a corresponding scalable video bit-stream
GBGB1217554.3A GB201217554D0 (en) 2012-10-01 2012-10-01 Method and devices for encoding a sequence of images into a scalable video bitstream,and decoding a corresponding scalable video bitstream

Publications (3)

Publication Number Publication Date
GB201223385D0 true GB201223385D0 (en) 2013-02-06
GB2499874A GB2499874A (en) 2013-09-04
GB2499874B GB2499874B (en) 2016-06-29

Family

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GB1217464.5A Active GB2499865B (en) 2012-03-02 2012-09-28 Method and devices for encoding a sequence of images into a scalable video bit-stream, and decoding a corresponding scalable video bit-stream
GB1223385.4A Expired - Fee Related GB2499874B (en) 2012-03-02 2012-12-24 Method and devices for encoding a sequence of images into a scalable video bit-stream, and decoding a corresponding scalable video bit-stream

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GB1217464.5A Active GB2499865B (en) 2012-03-02 2012-09-28 Method and devices for encoding a sequence of images into a scalable video bit-stream, and decoding a corresponding scalable video bit-stream

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GB (2) GB2499865B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2506594B (en) * 2012-09-28 2016-08-17 Canon Kk Method and devices for encoding an image of pixels into a video bitstream and decoding the corresponding video bitstream
US20140092975A1 (en) * 2012-10-01 2014-04-03 General Instrument Corporation Devices and methods for using base layer motion vector for enhancement layer motion vector prediction
GB2512829B (en) * 2013-04-05 2015-05-27 Canon Kk Method and apparatus for encoding or decoding an image with inter layer motion information prediction according to motion information compression scheme
US10085027B2 (en) 2015-03-06 2018-09-25 Qualcomm Incorporated Adaptive mode checking order for video encoding
CN109819253B (en) * 2017-11-21 2022-04-22 腾讯科技（深圳）有限公司 Video encoding method, video encoding device, computer equipment and storage medium
CN113302924A (en) * 2018-11-22 2021-08-24 交互数字Vc控股公司 Quantization for video encoding and decoding
CN114424552A (en) * 2019-09-29 2022-04-29 华为技术有限公司 Low-delay source-channel joint coding method and related equipment
US11869220B2 (en) * 2020-10-05 2024-01-09 Qualcomm Incorporated Scaling of quantization parameter values in geometry-based point cloud compression (G-PCC)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8619860B2 (en) * 2005-05-03 2013-12-31 Qualcomm Incorporated System and method for scalable encoding and decoding of multimedia data using multiple layers
EP1933563A1 (en) * 2006-12-14 2008-06-18 Thomson Licensing Method and apparatus for encoding and/or decoding bit depth scalable video data using adaptive enhancement layer residual prediction
CN106851319B (en) * 2011-06-10 2020-06-19 寰发股份有限公司 Derivation method and derivation device
GB2492393A (en) * 2011-06-30 2013-01-02 Canon Kk Selective quantisation of transformed image coefficients

Also Published As

Publication number Publication date
GB2499865A (en) 2013-09-04
GB2499874A (en) 2013-09-04
GB2499865B (en) 2016-07-06
GB2499874B (en) 2016-06-29
GB201217464D0 (en) 2012-11-14

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Legal Events

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 20221224