IN2014MN01846A - - Google Patents

Download PDF

Info

Publication number
IN2014MN01846A
IN2014MN01846A IN1846MUN2014A IN2014MN01846A IN 2014MN01846 A IN2014MN01846 A IN 2014MN01846A IN 1846MUN2014 A IN1846MUN2014 A IN 1846MUN2014A IN 2014MN01846 A IN2014MN01846 A IN 2014MN01846A
Authority
IN
India
Prior art keywords
coefficient
quantized level
initial
computing device
initial quantized
Prior art date
Application number
Inventor
Yang Yu
Muhammed Zeyd Coban
Marta Karczewicz
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of IN2014MN01846A publication Critical patent/IN2014MN01846A/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
    • H04N19/10—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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
    • 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
    • H04N19/149—Data rate or code amount at the encoder output by estimating the code amount by means of a model, e.g. mathematical model or statistical model
    • 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
    • H04N19/172—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 picture, frame or field
    • 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
    • H04N19/18—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 a set of transform coefficients

Abstract

A computing device such as a video encoder determines an initial quantized level for a coefficient of a coefficient block and determines whether the coefficient is less than the product of the initial quantized level and a quantization step size value. In response to determining that the coefficient is less than the product of the initial quantized level and the quantization step size value the computing device determines rate distortion costs of quantizing the coefficient to be the initial quantized level for the coefficient the initial quantized level minus one and in some circumstances 0. The computing device determines an actual quantized level for the coefficient based at least in part on the calculated rate distortion costs and includes the actual quantized level in a quantized version of the coefficient block.
IN1846MUN2014 2012-04-13 2013-03-14 IN2014MN01846A (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201261624116P 2012-04-13 2012-04-13
US201261623929P 2012-04-13 2012-04-13
US201261623948P 2012-04-13 2012-04-13
US13/800,155 US9270986B2 (en) 2012-04-13 2013-03-13 Level decision in rate distortion optimized quantization
PCT/US2013/031596 WO2013154747A1 (en) 2012-04-13 2013-03-14 Level decision in rate distortion optimized quantization

Publications (1)

Publication Number Publication Date
IN2014MN01846A true IN2014MN01846A (en) 2015-07-03

Family

ID=49325054

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1846MUN2014 IN2014MN01846A (en) 2012-04-13 2013-03-14

Country Status (6)

Country Link
US (2) US10085024B2 (en)
EP (1) EP2839640B1 (en)
JP (1) JP6144333B2 (en)
CN (2) CN104221375B (en)
IN (1) IN2014MN01846A (en)
WO (2) WO2013154747A1 (en)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10085024B2 (en) 2012-04-13 2018-09-25 Qualcomm Incorporated Lookup table for rate distortion optimized quantization
WO2014110452A1 (en) 2013-01-11 2014-07-17 Futurewei Technologies Co., Ltd. Method and apparatus of depth prediction mode selection
US9955163B2 (en) * 2013-06-17 2018-04-24 Google Llc Two pass quantization of video data
WO2015131330A1 (en) * 2014-03-04 2015-09-11 Microsoft Technology Licensing, Llc Encoding strategies for adaptive switching of color spaces, color sampling rates and/or bit depths
MX365498B (en) 2014-03-04 2019-06-05 Microsoft Technology Licensing Llc Adaptive switching of color spaces, color sampling rates and/or bit depths.
EP3122049A4 (en) * 2014-03-19 2017-11-08 Nec Corporation Image encoding apparatus, image encoding method, and image encoding program
RU2648276C1 (en) 2014-03-27 2018-03-23 МАЙКРОСОФТ ТЕКНОЛОДЖИ ЛАЙСЕНСИНГ, ЭлЭлСи Quantization/scaling and inverse quantization/scaling adjustment when switching color spaces
JP6308449B2 (en) * 2014-06-26 2018-04-11 ホアウェイ・テクノロジーズ・カンパニー・リミテッド Method and apparatus for reducing computational load in high efficiency video coding
US10687069B2 (en) 2014-10-08 2020-06-16 Microsoft Technology Licensing, Llc Adjustments to encoding and decoding when switching color spaces
US10136133B2 (en) * 2014-11-11 2018-11-20 Dolby Laboratories Licensing Corporation Rate control adaptation for high-dynamic range images
JP6497100B2 (en) * 2015-02-09 2019-04-10 沖電気工業株式会社 Video encoding apparatus, method and program
US10356422B2 (en) * 2015-03-06 2019-07-16 Qualcomm Incorporated Fast rate-distortion optimized quantization
KR102251828B1 (en) * 2015-09-02 2021-05-13 삼성전자주식회사 Method and apparatus for quantization based on rate-distortion optimization
KR102390162B1 (en) 2015-10-16 2022-04-22 삼성전자주식회사 Apparatus and method for encoding data
CN107426570B (en) * 2016-10-28 2020-11-03 福州大学 Self-adaptive Qp cascade method for low-delay video coding
CN107426572A (en) * 2016-12-30 2017-12-01 杭州当虹科技有限公司 A kind of efficiently quick video coding algorithm
US10194147B2 (en) * 2017-01-19 2019-01-29 Google Llc DC coefficient sign coding scheme
US10735736B2 (en) * 2017-08-29 2020-08-04 Google Llc Selective mixing for entropy coding in video compression
CN108322749B (en) * 2018-03-15 2021-03-16 北京数码视讯科技股份有限公司 RDOQ coefficient optimization method, RDOQ acceleration method and device
JP7067240B2 (en) * 2018-04-24 2022-05-16 富士通株式会社 Optimization calculation method, optimization calculation program and optimization calculation device
FR3081656A1 (en) * 2018-06-27 2019-11-29 Orange METHODS AND DEVICES FOR ENCODING AND DECODING A DATA STREAM REPRESENTATIVE OF AT LEAST ONE IMAGE.
WO2020007848A1 (en) * 2018-07-02 2020-01-09 Telefonaktiebolaget Lm Ericsson (Publ) Bilateral high frequency boost
EP3657799B1 (en) * 2018-11-22 2020-11-04 Axis AB Method for intra refresh encoding of a plurality of image frames
JP7137074B2 (en) * 2018-12-26 2022-09-14 富士通株式会社 Optimization calculation method, optimization calculation device, and optimization calculation program
CN110365975A (en) * 2019-06-21 2019-10-22 武汉玉航科技有限公司 A kind of AVS2 video encoding and decoding standard prioritization scheme
US11368693B2 (en) 2019-07-01 2022-06-21 Sony Group Corporation Forward and inverse quantization for point cloud compression using look-up tables
US20220224903A1 (en) * 2019-09-06 2022-07-14 Sony Group Corporation Image processing device and method
CN111770330B (en) * 2020-06-10 2022-11-04 北京达佳互联信息技术有限公司 Image compression method and device and electronic equipment
FR3112661B1 (en) * 2020-07-17 2024-02-02 Fond B Com Methods for decoding a data stream, devices and associated data streams
CN113010142B (en) * 2021-03-23 2023-07-28 广州万协通信息技术有限公司 Novel pulse node type scalar dot multiplication double-domain implementation system and method
US11425393B1 (en) 2021-06-10 2022-08-23 Meta Platforms, Inc. Hardware optimization of rate calculation in rate distortion optimization for video encoding
US11606568B1 (en) 2021-08-18 2023-03-14 Meta Platforms, Inc. End-of-block detection of quantized transform coefficient matrices in video encoding
CN114786010A (en) * 2022-03-07 2022-07-22 杭州未名信科科技有限公司 Rate distortion optimization quantization method and device, storage medium and electronic equipment
CN115022636A (en) * 2022-06-01 2022-09-06 上海哔哩哔哩科技有限公司 Rate distortion optimization quantization method and device
CN115902611B (en) * 2022-11-24 2024-03-19 国网四川省电力公司映秀湾水力发电总厂 Relay calibration method, device and calibrator

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5926222A (en) 1995-09-28 1999-07-20 Intel Corporation Bitrate estimator for selecting quantization levels for image encoding
JP5053081B2 (en) 2004-06-18 2012-10-17 トムソン ライセンシング Method and apparatus for video codec quantization
JP5404038B2 (en) 2005-07-01 2014-01-29 ソニック ソリューションズ リミテッド ライアビリティー カンパニー Method, apparatus and system used for multimedia signal encoding
US7889790B2 (en) 2005-12-20 2011-02-15 Sharp Laboratories Of America, Inc. Method and apparatus for dynamically adjusting quantization offset values
US8130828B2 (en) 2006-04-07 2012-03-06 Microsoft Corporation Adjusting quantization to preserve non-zero AC coefficients
US8155195B2 (en) 2006-04-07 2012-04-10 Microsoft Corporation Switching distortion metrics during motion estimation
US8582663B2 (en) * 2006-08-08 2013-11-12 Core Wireless Licensing S.A.R.L. Method, device, and system for multiplexing of video streams
US8233545B2 (en) 2006-08-21 2012-07-31 Texas Instruments Incorporated Run length encoding in VLIW architecture
EP2157798A1 (en) 2008-08-18 2010-02-24 Thomson Licensing Method for encoding an image, method for decoding an image, encoder, decoder and signal or storage medium carrying an encoded image
JP2011029954A (en) * 2009-07-27 2011-02-10 Sony Corp Image encoding device and image encoding method
US20110255589A1 (en) * 2009-08-03 2011-10-20 Droplet Technology, Inc. Methods of compressing data and methods of assessing the same
US8160136B2 (en) 2009-08-07 2012-04-17 Texas Instruments Incorporated Probabilistic bit-rate and rate-distortion cost estimation for video coding
US8254443B2 (en) 2009-08-28 2012-08-28 Ericsson Television, Inc. Latency rate distortion optimisation
HUE039661T2 (en) 2009-09-10 2019-01-28 Guangdong Oppo Mobile Telecommunications Corp Ltd Speedup techniques for rate distortion optimized quantization
US8675726B2 (en) 2010-02-18 2014-03-18 Blackberry Limited Method and encoder for constrained soft-decision quantization in data compression
US9313526B2 (en) 2010-02-19 2016-04-12 Skype Data compression for video
JP5423469B2 (en) 2010-02-23 2014-02-19 沖電気工業株式会社 Quantization apparatus, program and method, and moving picture encoding apparatus
US9641846B2 (en) 2010-10-22 2017-05-02 Qualcomm Incorporated Adaptive scanning of transform coefficients for video coding
US8995523B2 (en) * 2011-06-03 2015-03-31 Qualcomm Incorporated Memory efficient context modeling
US20130188013A1 (en) * 2011-07-22 2013-07-25 Qualcomm Incorporated Mvc based 3dvc codec supporting inside view motion prediction (ivmp) mode
WO2013103523A1 (en) * 2012-01-04 2013-07-11 Audience, Inc. Image enhancement methods and systems
US10085024B2 (en) 2012-04-13 2018-09-25 Qualcomm Incorporated Lookup table for rate distortion optimized quantization
US10136143B2 (en) * 2012-12-07 2018-11-20 Qualcomm Incorporated Advanced residual prediction in scalable and multi-view video coding

Also Published As

Publication number Publication date
CN104221375B (en) 2017-12-08
JP6144333B2 (en) 2017-06-07
EP2839640A1 (en) 2015-02-25
US9270986B2 (en) 2016-02-23
JP2015516761A (en) 2015-06-11
CN104221375A (en) 2014-12-17
US20130272386A1 (en) 2013-10-17
WO2013154748A1 (en) 2013-10-17
CN104221377B (en) 2017-10-31
US10085024B2 (en) 2018-09-25
WO2013154747A1 (en) 2013-10-17
CN104221377A (en) 2014-12-17
EP2839640B1 (en) 2016-08-03
US20130272385A1 (en) 2013-10-17

Similar Documents

Publication Publication Date Title
IN2014MN01846A (en)
MY190756A (en) Image processing device and method
MY166883A (en) Determining contexts for coding transform coefficient data in video coding
IN2014MN02044A (en)
WO2013158656A3 (en) Uniform granularity for quantization matrix in video coding
PH12017500772A1 (en) Parameter update method for entropy coding and decoding of conversion coefficient level, and entropy coding device and entropy decoding device of conversion coefficient level using same
MX363812B (en) Conversion method and conversion device.
MX362424B (en) Audio encoder and decoder using a frequency domain processor with full-band gap filling and a time domain processor.
IN2013MU02340A (en)
SG10201407305TA (en) Image processing device and method
MX2014002749A (en) Methods and apparatus for quantization and dequantization of a rectangular block of coefficients.
MX339710B (en) Image encoding method, image decoding method, image encoding device, image decoding device, and image encoding and decoding device.
MX2016013225A (en) System and method for selecting quantization parameter (qp) in display stream compression (dsc).
SG10201808285UA (en) Method and device for quantization of linear prediction coefficient and method and device for inverse quantization
MX2013012041A (en) Method and apparatus for quantization level clipping.
WO2013050206A3 (en) Adaptive quantisation for intra-encoded image blocks
MX2015009753A (en) Low-complexity tonality-adaptive audio signal quantization.
EP4035368A4 (en) Methods and devices for quantization and de-quantization design in video coding
TH171863A (en) Adaptive audio quantization, low complexity audio system
UA112451C2 (en) QUANTITATION MATRIX SIGNALING FOR VIDEO CODING