DE60308255D1 - 2D-Transformationen zur Bild- und Videokodierung - Google Patents

2D-Transformationen zur Bild- und Videokodierung

Info

Publication number
DE60308255D1
DE60308255D1 DE60308255T DE60308255T DE60308255D1 DE 60308255 D1 DE60308255 D1 DE 60308255D1 DE 60308255 T DE60308255 T DE 60308255T DE 60308255 T DE60308255 T DE 60308255T DE 60308255 D1 DE60308255 D1 DE 60308255D1
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DE
Germany
Prior art keywords
image
range
implementation
video coding
integer
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.)
Expired - Lifetime
Application number
DE60308255T
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English (en)
Other versions
DE60308255T2 (de
Inventor
Srinivasan Sridhar
Regunathan Shankar
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Microsoft Corp
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Microsoft Corp
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Publication date
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Publication of DE60308255D1 publication Critical patent/DE60308255D1/de
Publication of DE60308255T2 publication Critical patent/DE60308255T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00Image coding
    • G06T9/007Transform coding, e.g. discrete cosine transform
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10Complex mathematical operations
    • G06F17/14Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/147Discrete 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/132Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Multimedia (AREA)
  • Discrete Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Algebra (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Television Systems (AREA)
DE60308255T 2002-05-02 2003-03-21 2D-Transformationen zur Bild- und Videokodierung Expired - Lifetime DE60308255T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US37729802P 2002-05-02 2002-05-02
US377298P 2002-05-02
US10/376,147 US7242713B2 (en) 2002-05-02 2003-02-28 2-D transforms for image and video coding
US376147P 2003-02-28

Publications (2)

Publication Number Publication Date
DE60308255D1 true DE60308255D1 (de) 2006-10-26
DE60308255T2 DE60308255T2 (de) 2006-12-28

Family

ID=29273051

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60308255T Expired - Lifetime DE60308255T2 (de) 2002-05-02 2003-03-21 2D-Transformationen zur Bild- und Videokodierung

Country Status (8)

Country Link
US (1) US7242713B2 (de)
EP (1) EP1359546B1 (de)
JP (1) JP4425561B2 (de)
KR (1) KR100965704B1 (de)
CN (1) CN100379292C (de)
AT (1) ATE339744T1 (de)
DE (1) DE60308255T2 (de)
HK (1) HK1060205A1 (de)

Families Citing this family (85)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6882685B2 (en) 2001-09-18 2005-04-19 Microsoft Corporation Block transform and quantization for image and video coding
IL147370A (en) * 2001-12-27 2007-07-24 Itzhak Florentin Method and system for guiding a remote vehicle via a retarded communication channel
US7129962B1 (en) * 2002-03-25 2006-10-31 Matrox Graphics Inc. Efficient video processing method and system
US7242713B2 (en) 2002-05-02 2007-07-10 Microsoft Corporation 2-D transforms for image and video coding
US7760950B2 (en) * 2002-09-26 2010-07-20 Ntt Docomo, Inc. Low complexity and unified transforms for video coding
US6831868B2 (en) * 2002-12-05 2004-12-14 Intel Corporation Byte aligned redundancy for memory array
US7471726B2 (en) * 2003-07-15 2008-12-30 Microsoft Corporation Spatial-domain lapped transform in digital media compression
JP4699685B2 (ja) * 2003-08-21 2011-06-15 パナソニック株式会社 信号処理装置及びそれを用いた電子機器
US7724827B2 (en) 2003-09-07 2010-05-25 Microsoft Corporation Multi-layer run level encoding and decoding
US7369709B2 (en) * 2003-09-07 2008-05-06 Microsoft Corporation Conditional lapped transform
US7813574B2 (en) * 2003-09-24 2010-10-12 Ntt Docomo, Inc. Low complexity and unified transforms for video coding
KR20050075578A (ko) * 2004-01-16 2005-07-21 삼성전자주식회사 폐루프 최적화를 지원하는 스케일러블 비디오 엔코딩 방법및 장치
US7487193B2 (en) * 2004-05-14 2009-02-03 Microsoft Corporation Fast video codec transform implementations
US8045614B2 (en) 2005-05-11 2011-10-25 Dolby Laboratories Licensing Corporation Quantization control for variable bit depth
WO2006034603A1 (en) * 2004-09-28 2006-04-06 Huawei Technologies Co., Ltd Video image encoding method
US7305139B2 (en) * 2004-12-17 2007-12-04 Microsoft Corporation Reversible 2-dimensional pre-/post-filtering for lapped biorthogonal transform
US7428342B2 (en) * 2004-12-17 2008-09-23 Microsoft Corporation Reversible overlap operator for efficient lossless data compression
US7471850B2 (en) * 2004-12-17 2008-12-30 Microsoft Corporation Reversible transform for lossy and lossless 2-D data compression
AU2005239628B2 (en) * 2005-01-14 2010-08-05 Microsoft Technology Licensing, Llc Reversible 2-dimensional pre-/post-filtering for lapped biorthogonal transform
US8311088B2 (en) * 2005-02-07 2012-11-13 Broadcom Corporation Method and system for image processing in a microprocessor for portable video communication devices
US7953161B2 (en) * 2005-04-27 2011-05-31 Broadcom Corporation System and method for overlap transforming and deblocking
US8422546B2 (en) * 2005-05-25 2013-04-16 Microsoft Corporation Adaptive video encoding using a perceptual model
US8036274B2 (en) * 2005-08-12 2011-10-11 Microsoft Corporation SIMD lapped transform-based digital media encoding/decoding
US20070047655A1 (en) * 2005-08-26 2007-03-01 Vannerson Eric F Transpose buffering for video processing
WO2007027418A2 (en) * 2005-08-31 2007-03-08 Micronas Usa, Inc. Systems and methods for video transformation and in loop filtering
EP2566160A3 (de) * 2005-10-14 2013-08-21 NEC Corporation Gerät und Verfahren zur Entropiekodierung mit Ratensteuerung
JP2007195117A (ja) * 2006-01-23 2007-08-02 Toshiba Corp 動画像復号装置
JP2007243427A (ja) * 2006-03-07 2007-09-20 Nippon Hoso Kyokai <Nhk> 符号化装置及び復号化装置
US8059721B2 (en) * 2006-04-07 2011-11-15 Microsoft Corporation Estimating sample-domain distortion in the transform domain with rounding compensation
US7995649B2 (en) 2006-04-07 2011-08-09 Microsoft Corporation Quantization adjustment based on texture level
US8503536B2 (en) 2006-04-07 2013-08-06 Microsoft Corporation Quantization adjustments for DC shift artifacts
US8711925B2 (en) 2006-05-05 2014-04-29 Microsoft Corporation Flexible quantization
JP4829019B2 (ja) * 2006-07-06 2011-11-30 株式会社東芝 通信端末装置
US8238424B2 (en) 2007-02-09 2012-08-07 Microsoft Corporation Complexity-based adaptive preprocessing for multiple-pass video compression
US8942289B2 (en) 2007-02-21 2015-01-27 Microsoft Corporation Computational complexity and precision control in transform-based digital media codec
US20080240257A1 (en) * 2007-03-26 2008-10-02 Microsoft Corporation Using quantization bias that accounts for relations between transform bins and quantization bins
US8498335B2 (en) 2007-03-26 2013-07-30 Microsoft Corporation Adaptive deadzone size adjustment in quantization
US8243797B2 (en) 2007-03-30 2012-08-14 Microsoft Corporation Regions of interest for quality adjustments
US8442337B2 (en) 2007-04-18 2013-05-14 Microsoft Corporation Encoding adjustments for animation content
US8331438B2 (en) 2007-06-05 2012-12-11 Microsoft Corporation Adaptive selection of picture-level quantization parameters for predicted video pictures
US8255445B2 (en) * 2007-10-30 2012-08-28 The Chinese University Of Hong Kong Processes and apparatus for deriving order-16 integer transforms
US8331454B2 (en) * 2007-11-12 2012-12-11 Cisco Technology, Inc. Integer transform function for video compression systems
CN100461095C (zh) * 2007-11-20 2009-02-11 浙江大学 一种支持多模式的媒体增强流水线乘法单元设计方法
US8189933B2 (en) 2008-03-31 2012-05-29 Microsoft Corporation Classifying and controlling encoding quality for textured, dark smooth and smooth video content
US8102918B2 (en) 2008-04-15 2012-01-24 The Chinese University Of Hong Kong Generation of an order-2N transform from an order-N transform
US8175165B2 (en) 2008-04-15 2012-05-08 The Chinese University Of Hong Kong Methods and apparatus for deriving an order-16 integer transform
US8369638B2 (en) * 2008-05-27 2013-02-05 Microsoft Corporation Reducing DC leakage in HD photo transform
US8447591B2 (en) * 2008-05-30 2013-05-21 Microsoft Corporation Factorization of overlapping tranforms into two block transforms
US8897359B2 (en) 2008-06-03 2014-11-25 Microsoft Corporation Adaptive quantization for enhancement layer video coding
EP2373031A1 (de) * 2008-08-12 2011-10-05 Lg Electronics Inc. Verfahren zur Dekodierung von Videosignalen
US8275209B2 (en) * 2008-10-10 2012-09-25 Microsoft Corporation Reduced DC gain mismatch and DC leakage in overlap transform processing
US9183181B2 (en) * 2011-01-10 2015-11-10 Cisco Technology, Inc. Integer matrix transform video compression system, method and computer program product
US9110849B2 (en) 2009-04-15 2015-08-18 Qualcomm Incorporated Computing even-sized discrete cosine transforms
US9069713B2 (en) 2009-06-05 2015-06-30 Qualcomm Incorporated 4X4 transform for media coding
US8762441B2 (en) * 2009-06-05 2014-06-24 Qualcomm Incorporated 4X4 transform for media coding
WO2010143853A2 (ko) 2009-06-07 2010-12-16 엘지전자 주식회사 비디오 신호의 디코딩 방법 및 장치
US9635368B2 (en) 2009-06-07 2017-04-25 Lg Electronics Inc. Method and apparatus for decoding a video signal
US9081733B2 (en) 2009-06-24 2015-07-14 Qualcomm Incorporated 16-point transform for media data coding
US9075757B2 (en) 2009-06-24 2015-07-07 Qualcomm Incorporated 16-point transform for media data coding
US9118898B2 (en) 2009-06-24 2015-08-25 Qualcomm Incorporated 8-point transform for media data coding
US8817875B2 (en) * 2009-08-13 2014-08-26 The Johns Hopkins University Methods and systems to encode and decode sequences of images
CN102667923B (zh) 2009-10-20 2014-11-05 弗兰霍菲尔运输应用研究公司 音频编码器、音频解码器、用于将音频信息编码的方法、用于将音频信息解码的方法
CA2786944C (en) * 2010-01-12 2016-03-15 Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Audio encoder, audio decoder, method for encoding and audio information, method for decoding an audio information and computer program using a hash table describing both significant state values and interval boundaries
TWI415474B (zh) * 2010-07-19 2013-11-11 Mstar Semiconductor Inc 視訊編/解碼器與其方法
BR122020016581B1 (pt) 2010-09-28 2022-03-03 Samsung Electronics Co., Ltd. Método de decodificação de vídeo, e método de codificação de vídeo
CN101977321B (zh) * 2010-11-04 2014-03-12 深圳市融创天下科技股份有限公司 一种视频编码的整数变换方法
US9824066B2 (en) 2011-01-10 2017-11-21 Qualcomm Incorporated 32-point transform for media data coding
GB2492333B (en) * 2011-06-27 2018-12-12 British Broadcasting Corp Video encoding and decoding using transforms
TWI502970B (zh) 2011-06-30 2015-10-01 Samsung Electronics Co Ltd 以對固定點轉換之位元深度控制做視訊編碼之方法與裝置以及以對固定點轉換之位元深度控制做視訊解碼之方法與裝置
JP5662887B2 (ja) * 2011-07-01 2015-02-04 日本放送協会 符号化装置、復号装置及びプログラム
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
US8719321B2 (en) * 2011-12-11 2014-05-06 Hong Kong Applied Science and Technology Research Institute Company Limited Adaptive block-size transform using LLMICT
US9749633B2 (en) * 2012-01-19 2017-08-29 Vid Scale, Inc. System and method of video coding quantization and dynamic range control
CN103905825B (zh) * 2012-12-27 2018-02-13 中国电信股份有限公司 视频图像的运动补偿方法和装置
JP6102707B2 (ja) * 2013-12-05 2017-03-29 Nttエレクトロニクス株式会社 デジタル符号化装置
CN104901703B (zh) * 2015-04-08 2018-04-03 河海大学 一种整数序列快速压缩存储算法
AU2015404416C1 (en) * 2015-07-31 2021-03-25 Ent. Services Development Corporation Lp Translate data structure to video frame structure
US10567800B2 (en) 2016-11-29 2020-02-18 Qualcomm Incorporated Transform hardware architecture for video coding
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
US11049219B2 (en) 2017-06-06 2021-06-29 Gopro, Inc. Methods and apparatus for multi-encoder processing of high resolution content
WO2019159696A1 (ja) * 2018-02-14 2019-08-22 ソニー株式会社 画像処理装置および方法
US11647214B2 (en) * 2018-03-30 2023-05-09 Qualcomm Incorporated Multiple transforms adjustment stages for video coding
US11228781B2 (en) 2019-06-26 2022-01-18 Gopro, Inc. Methods and apparatus for maximizing codec bandwidth in video applications
US11481863B2 (en) 2019-10-23 2022-10-25 Gopro, Inc. Methods and apparatus for hardware accelerated image processing for spherical projections
KR20220147339A (ko) 2021-04-27 2022-11-03 성균관대학교산학협력단 이미지의 암호화 방법

Family Cites Families (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63219066A (ja) 1987-03-06 1988-09-12 Matsushita Electric Ind Co Ltd 直交変換装置
US5357594A (en) * 1989-01-27 1994-10-18 Dolby Laboratories Licensing Corporation Encoding and decoding using specially designed pairs of analysis and synthesis windows
US5379351A (en) * 1992-02-19 1995-01-03 Integrated Information Technology, Inc. Video compression/decompression processing and processors
US5319724A (en) 1990-04-19 1994-06-07 Ricoh Corporation Apparatus and method for compressing still images
JP2945487B2 (ja) * 1990-12-26 1999-09-06 株式会社日立製作所 行列乗算器
JPH04282988A (ja) 1991-03-12 1992-10-08 Sony Corp データ変換装置及び方法
US5168375A (en) * 1991-09-18 1992-12-01 Polaroid Corporation Image reconstruction by use of discrete cosine and related transforms
JPH0645949A (ja) 1992-07-27 1994-02-18 Victor Co Of Japan Ltd 直交変換装置及び逆直交変換装置
JPH0645948A (ja) 1992-07-27 1994-02-18 Victor Co Of Japan Ltd 直交変換装置及び逆直交変換装置
JPH0654307A (ja) 1992-07-29 1994-02-25 Casio Comput Co Ltd データ圧縮装置
JP3069455B2 (ja) * 1992-12-22 2000-07-24 富士写真フイルム株式会社 画像データ圧縮伸張装置における量子化・逆量子化回路
US5995539A (en) * 1993-03-17 1999-11-30 Miller; William J. Method and apparatus for signal transmission and reception
JP3697717B2 (ja) * 1993-09-24 2005-09-21 ソニー株式会社 2次元離散コサイン変換装置および2次元逆離散コサイン変換装置
US5864637A (en) * 1995-04-18 1999-01-26 Advanced Micro Devices, Inc. Method and apparatus for improved video decompression by selective reduction of spatial resolution
US6002801A (en) * 1995-04-18 1999-12-14 Advanced Micro Devices, Inc. Method and apparatus for improved video decompression by selection of IDCT method based on image characteristics
JP2914226B2 (ja) 1995-06-16 1999-06-28 日本電気株式会社 可逆変換を可能にするディジタル信号の変換符号化方式
US5701263A (en) * 1995-08-28 1997-12-23 Hyundai Electronics America Inverse discrete cosine transform processor for VLSI implementation
US5933535A (en) * 1995-10-05 1999-08-03 Microsoft Corporation Object-based video compression process employing arbitrarily-shaped features
US6957350B1 (en) * 1996-01-30 2005-10-18 Dolby Laboratories Licensing Corporation Encrypted and watermarked temporal and resolution layering in advanced television
JPH1091614A (ja) 1996-09-13 1998-04-10 Hitachi Ltd Idctの整数化法
US5883823A (en) 1997-01-15 1999-03-16 Sun Microsystems, Inc. System and method of a fast inverse discrete cosine transform and video compression/decompression systems employing the same
US6058215A (en) * 1997-04-30 2000-05-02 Ricoh Company, Ltd. Reversible DCT for lossless-lossy compression
US6134270A (en) * 1997-06-13 2000-10-17 Sun Microsystems, Inc. Scaled forward and inverse discrete cosine transform and video compression/decompression systems employing the same
US6057855A (en) * 1997-07-02 2000-05-02 Hewlett-Packard Company Method and apparatus for providing polygon pixel sub-sample information using incremental means
US6600785B1 (en) * 1997-12-01 2003-07-29 Matsushita Electric Industrial Image processor, image data processor and variable length encoder/decoder
ES2251116T3 (es) * 1997-12-19 2006-04-16 Infineon Technologies Ag Dispositivo para la multiplicacion con factores constantes y su utilizacion para la compresion de video (mpeg).
US6029126A (en) * 1998-06-30 2000-02-22 Microsoft Corporation Scalable audio coder and decoder
US6115689A (en) * 1998-05-27 2000-09-05 Microsoft Corporation Scalable audio coder and decoder
US6154762A (en) * 1998-06-03 2000-11-28 Microsoft Corporation Fast system and method for computing modulated lapped transforms
US6073153A (en) * 1998-06-03 2000-06-06 Microsoft Corporation Fast system and method for computing modulated lapped transforms
US6301304B1 (en) * 1998-06-17 2001-10-09 Lsi Logic Corporation Architecture and method for inverse quantization of discrete cosine transform coefficients in MPEG decoders
GB9819648D0 (en) * 1998-09-10 1998-11-04 Nds Ltd Determining visually noticeable differences between two images
US6363117B1 (en) * 1998-12-31 2002-03-26 Sony Corporation Video compression using fast block motion estimation
US6473534B1 (en) * 1999-01-06 2002-10-29 Hewlett-Packard Company Multiplier-free implementation of DCT used in image and video processing and compression
US6496795B1 (en) * 1999-05-05 2002-12-17 Microsoft Corporation Modulated complex lapped transform for integrated signal enhancement and coding
US6487574B1 (en) * 1999-02-26 2002-11-26 Microsoft Corp. System and method for producing modulated complex lapped transforms
US6370502B1 (en) * 1999-05-27 2002-04-09 America Online, Inc. Method and system for reduction of quantization-induced block-discontinuities and general purpose audio codec
US6507614B1 (en) * 1999-10-19 2003-01-14 Sony Corporation Efficient de-quantization in a digital video decoding process using a dynamic quantization matrix for parallel computations
JP3593944B2 (ja) * 2000-03-08 2004-11-24 日本電気株式会社 画像データ処理装置及びそれに用いる動き補償処理方法
US8374237B2 (en) 2001-03-02 2013-02-12 Dolby Laboratories Licensing Corporation High precision encoding and decoding of video images
US20030112873A1 (en) 2001-07-11 2003-06-19 Demos Gary A. Motion estimation for video compression systems
US7123655B2 (en) * 2001-08-09 2006-10-17 Sharp Laboratories Of America, Inc. Method for reduced bit-depth quantization
US6882685B2 (en) * 2001-09-18 2005-04-19 Microsoft Corporation Block transform and quantization for image and video coding
JP2003348598A (ja) 2002-04-12 2003-12-05 Seiko Epson Corp メモリ効率のいい圧縮領域ビデオ処理のための且つ因数分解及び整数近似法を用いる高速逆動き補償のための方法並びに装置
US7242713B2 (en) 2002-05-02 2007-07-10 Microsoft Corporation 2-D transforms for image and video coding

Also Published As

Publication number Publication date
US7242713B2 (en) 2007-07-10
KR100965704B1 (ko) 2010-06-24
EP1359546A1 (de) 2003-11-05
DE60308255T2 (de) 2006-12-28
ATE339744T1 (de) 2006-10-15
JP4425561B2 (ja) 2010-03-03
KR20030086423A (ko) 2003-11-10
EP1359546B1 (de) 2006-09-13
CN1455599A (zh) 2003-11-12
US20030206582A1 (en) 2003-11-06
HK1060205A1 (en) 2004-07-30
CN100379292C (zh) 2008-04-02
JP2003333598A (ja) 2003-11-21

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