ZA200203276B - Variance based adaptive block size DCT image compression. - Google Patents

Variance based adaptive block size DCT image compression.

Info

Publication number
ZA200203276B
ZA200203276B ZA200203276A ZA200203276A ZA200203276B ZA 200203276 B ZA200203276 B ZA 200203276B ZA 200203276 A ZA200203276 A ZA 200203276A ZA 200203276 A ZA200203276 A ZA 200203276A ZA 200203276 B ZA200203276 B ZA 200203276B
Authority
ZA
South Africa
Prior art keywords
block size
image compression
based adaptive
adaptive block
variance based
Prior art date
Application number
ZA200203276A
Other languages
English (en)
Inventor
Kadayam Thyagarajan
Michael J Merritt
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 ZA200203276B publication Critical patent/ZA200203276B/xx

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
    • H04N19/169—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
    • H04N19/90—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
    • H04N19/96—Tree coding, e.g. quad-tree 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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
ZA200203276A 1999-11-08 2002-04-24 Variance based adaptive block size DCT image compression. ZA200203276B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/436,085 US6529634B1 (en) 1999-11-08 1999-11-08 Contrast sensitive variance based adaptive block size DCT image compression

Publications (1)

Publication Number Publication Date
ZA200203276B true ZA200203276B (en) 2003-07-24

Family

ID=23731055

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA200203276A ZA200203276B (en) 1999-11-08 2002-04-24 Variance based adaptive block size DCT image compression.

Country Status (17)

Country Link
US (1) US6529634B1 (enExample)
EP (1) EP1230804B1 (enExample)
JP (2) JP5289659B2 (enExample)
KR (1) KR100740818B1 (enExample)
CN (1) CN1186942C (enExample)
AR (1) AR033655A1 (enExample)
AT (1) ATE538598T1 (enExample)
AU (1) AU782176B2 (enExample)
BR (1) BR0015341B1 (enExample)
CA (1) CA2389410C (enExample)
ES (1) ES2376540T3 (enExample)
IL (2) IL149455A0 (enExample)
MX (1) MXPA02004577A (enExample)
RU (1) RU2273112C2 (enExample)
TW (1) TW517500B (enExample)
WO (1) WO2001035673A1 (enExample)
ZA (1) ZA200203276B (enExample)

Families Citing this family (82)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1033885B1 (en) * 1998-09-21 2009-06-24 Sony Corporation Encoding device and method, and decoding device and method
GB2364415B (en) * 2000-06-30 2004-10-20 Post Office Image processing
US6972868B1 (en) 2000-11-09 2005-12-06 Hewlett-Packard Development Company, L.P. Image data compression method
US7649947B2 (en) * 2001-06-05 2010-01-19 Qualcomm Incorporated Selective chrominance decimation for digital images
US6870963B2 (en) 2001-06-15 2005-03-22 Qualcomm, Inc. Configurable pattern optimizer
US6735254B2 (en) * 2001-06-29 2004-05-11 Qualcomm, Inc. DCT compression using Golomb-Rice coding
US6650784B2 (en) * 2001-07-02 2003-11-18 Qualcomm, Incorporated Lossless intraframe encoding using Golomb-Rice
US7483581B2 (en) 2001-07-02 2009-01-27 Qualcomm Incorporated Apparatus and method for encoding digital image data in a lossless manner
US7630563B2 (en) * 2001-07-19 2009-12-08 Qualcomm Incorporated System and method for decoding digital image and audio data in a lossless manner
JP3900155B2 (ja) * 2001-08-02 2007-04-04 ソニー株式会社 画像処理装置、画像処理方法および画像処理プログラム、ならびに、量子化制御装置、量子化制御方法および量子化制御プログラム
AU2002335743A1 (en) * 2001-09-14 2003-04-01 The Regents Of The University Of Michigan Audio distributor
AU2002346413A1 (en) * 2001-11-16 2003-06-10 Qualcomm Incorporated Block size assignment using local contrast ratio
US7742525B1 (en) * 2002-07-14 2010-06-22 Apple Inc. Adaptive motion estimation
US7856149B2 (en) * 2002-07-29 2010-12-21 Qualcomm Incorporated Digital image encoding
US6975773B1 (en) * 2002-07-30 2005-12-13 Qualcomm, Incorporated Parameter selection in data compression and decompression
JP3679083B2 (ja) * 2002-10-08 2005-08-03 株式会社エヌ・ティ・ティ・ドコモ 画像符号化方法、画像復号方法、画像符号化装置、画像復号装置、画像符号化プログラム、画像復号プログラム
ATE428997T1 (de) * 2002-11-15 2009-05-15 Qualcomm Inc Vorrichtung und verfahren zur mehrfachbeschreibungskodierung
KR100828353B1 (ko) * 2003-02-05 2008-05-08 삼성전자주식회사 영상 블록 분할 방법 및 그 장치
TWI373734B (en) * 2003-03-17 2012-10-01 Qualcomm Inc Method and apparatus for improving video quality of low bit-rate video
US7995849B2 (en) * 2003-03-17 2011-08-09 Qualcomm, Incorporated Method and apparatus for improving video quality of low bit-rate video
KR100510137B1 (ko) * 2003-04-30 2005-08-26 삼성전자주식회사 고속 움직임 추정을 위한 참조 픽쳐 및 블록 모드 결정방법, 그 장치, 블록 모드 결정 방법 및 그 장치
HUP0301368A3 (en) * 2003-05-20 2005-09-28 Amt Advanced Multimedia Techno Method and equipment for compressing motion picture data
KR100723400B1 (ko) 2004-05-12 2007-05-30 삼성전자주식회사 복수의 룩업테이블을 이용한 디지털 신호 부호화 방법 및장치
US20050286777A1 (en) * 2004-06-27 2005-12-29 Roger Kumar Encoding and decoding images
US7792188B2 (en) 2004-06-27 2010-09-07 Apple Inc. Selecting encoding types and predictive modes for encoding video data
US7852916B2 (en) * 2004-06-27 2010-12-14 Apple Inc. Efficient use of storage in encoding and decoding video data streams
CN101540912B (zh) * 2004-06-27 2011-05-18 苹果公司 对编码视频数据选择编码类型和预测模式
US8111752B2 (en) 2004-06-27 2012-02-07 Apple Inc. Encoding mode pruning during video encoding
FI20050113A7 (fi) * 2005-02-01 2006-08-02 Head Inhimillinen Tekijae Oy Menetelmä kuvainformaation käsittelemiseksi
US7609766B2 (en) * 2005-02-08 2009-10-27 Vixs Systems, Inc. System of intra-picture complexity preprocessing
US20070200738A1 (en) * 2005-10-12 2007-08-30 Yuriy Reznik Efficient multiplication-free computation for signal and data processing
US8595281B2 (en) 2006-01-11 2013-11-26 Qualcomm Incorporated Transforms with common factors
US8849884B2 (en) 2006-03-29 2014-09-30 Qualcom Incorporate Transform design with scaled and non-scaled interfaces
US8379996B2 (en) * 2006-06-20 2013-02-19 Nikon Corporation Image processing method using motion vectors, image processing device using motion vectors, and image processing program using motion vectors
US8699810B2 (en) * 2006-06-26 2014-04-15 Qualcomm Incorporated Efficient fixed-point approximations of forward and inverse discrete cosine transforms
US8385424B2 (en) * 2006-06-26 2013-02-26 Qualcomm Incorporated Reduction of errors during computation of inverse discrete cosine transform
RU2417423C2 (ru) * 2006-06-26 2011-04-27 Квэлкомм Инкорпорейтед Эффективные аппроксимации с фиксированной запятой прямого и обратного дискретных косинусных преобразований
JP4906458B2 (ja) * 2006-09-29 2012-03-28 キヤノン株式会社 画像符号化装置、画像符号化方法
ES2630203T3 (es) * 2006-10-10 2017-08-18 Nippon Telegraph And Telephone Corporation Método y dispositivo de control de codificación de predicción intra, su programa, y medio de almacenamiento que contiene programa
US8542726B2 (en) * 2006-10-17 2013-09-24 Microsoft Corporation Directional and motion-compensated discrete cosine transformation
CN100542298C (zh) * 2007-09-29 2009-09-16 中国科学院计算技术研究所 一种柱面全景视频编码的块尺寸计算方法和传输方法
US8325796B2 (en) 2008-09-11 2012-12-04 Google Inc. System and method for video coding using adaptive segmentation
KR101619972B1 (ko) * 2008-10-02 2016-05-11 한국전자통신연구원 이산 여현 변환/이산 정현 변환을 선택적으로 이용하는 부호화/복호화 장치 및 방법
US8503527B2 (en) 2008-10-03 2013-08-06 Qualcomm Incorporated Video coding with large macroblocks
RU2399953C1 (ru) * 2008-12-23 2010-09-20 Открытое Акционерное Общество "Конструкторское Бюро "Луч" Способ формирования и проверки заверенного цифровым водяным знаком электронного изображения
CN104717504B (zh) * 2009-04-08 2018-04-06 夏普株式会社 运动图像编码装置以及运动图像解码装置
KR101624649B1 (ko) * 2009-08-14 2016-05-26 삼성전자주식회사 계층적인 부호화 블록 패턴 정보를 이용한 비디오 부호화 방법 및 장치, 비디오 복호화 방법 및 장치
KR101456498B1 (ko) * 2009-08-14 2014-10-31 삼성전자주식회사 계층적 부호화 단위의 스캔 순서를 고려한 비디오 부호화 방법 및 장치, 비디오 복호화 방법 및 장치
KR20110017719A (ko) * 2009-08-14 2011-02-22 삼성전자주식회사 비디오 부호화 방법 및 장치, 비디오 복호화 방법 및 장치
WO2011126277A2 (en) 2010-04-05 2011-10-13 Samsung Electronics Co., Ltd. Low complexity entropy-encoding/decoding method and apparatus
US8982961B2 (en) 2010-04-05 2015-03-17 Samsung Electronics Co., Ltd. Method and apparatus for encoding video by using transformation index, and method and apparatus for decoding video by using transformation index
KR20110112168A (ko) * 2010-04-05 2011-10-12 삼성전자주식회사 내부 비트뎁스 확장에 기반한 비디오 부호화 방법 및 그 장치, 내부 비트뎁스 확장에 기반한 비디오 복호화 방법 및 그 장치
WO2011126283A2 (en) 2010-04-05 2011-10-13 Samsung Electronics Co., Ltd. Method and apparatus for encoding video based on internal bit depth increment, and method and apparatus for decoding video based on internal bit depth increment
CN106210732B (zh) * 2010-04-13 2020-03-24 Ge视频压缩有限责任公司 解码器、编码器、解码方法、编码方法以及存储介质
JP5479225B2 (ja) * 2010-05-27 2014-04-23 キヤノン株式会社 画像処理装置、画像処理方法及びプログラム
JP5765893B2 (ja) * 2010-06-16 2015-08-19 キヤノン株式会社 画像処理装置、撮像装置および画像処理プログラム
JP5741076B2 (ja) * 2010-12-09 2015-07-01 ソニー株式会社 画像処理装置及び画像処理方法
JP5741729B2 (ja) * 2010-12-09 2015-07-01 ソニー株式会社 画像処理装置及び画像処理方法
US8761245B2 (en) * 2010-12-21 2014-06-24 Intel Corporation Content adaptive motion compensation filtering for high efficiency video coding
JP2012238927A (ja) * 2011-05-09 2012-12-06 Sony Corp 画像処理装置及び画像処理方法
CA2856348C (en) 2011-12-19 2021-06-08 Sony Corporation Image processing device and method
CN103313046B (zh) * 2012-03-06 2019-06-14 中兴通讯股份有限公司 一种残差的表示方法和熵编码输入装置
CN103428485A (zh) * 2012-05-24 2013-12-04 富士通株式会社 图像编码方法及图像解码方法
US10333547B2 (en) 2012-08-13 2019-06-25 Gurologic Microsystems Oy Encoder and method for encoding input data using a plurality of different transformations or combinations of transformations
US8675731B2 (en) 2012-08-13 2014-03-18 Gurulogic Microsystems Oy Encoder and method
US9258389B2 (en) 2012-08-13 2016-02-09 Gurulogic Microsystems Oy Encoder and method
TW201419862A (zh) * 2012-11-13 2014-05-16 Hon Hai Prec Ind Co Ltd 影像切割系統及方法
TW201419865A (zh) * 2012-11-13 2014-05-16 Hon Hai Prec Ind Co Ltd 影像切割系統及方法
TW201419863A (zh) * 2012-11-13 2014-05-16 Hon Hai Prec Ind Co Ltd 影像切割系統及方法
US9177393B2 (en) * 2013-02-04 2015-11-03 Qualcomm Incorporated Mixed mode for frame buffer compression
JP5719410B2 (ja) * 2013-07-25 2015-05-20 日本電信電話株式会社 画像符号化方法、画像符号化装置及び画像符号化プログラム
CN104331855A (zh) * 2014-05-22 2015-02-04 重庆大学 基于.net的鼠标拾取添加位置的数字图像自适应可见水印添加方法
US9392272B1 (en) 2014-06-02 2016-07-12 Google Inc. Video coding using adaptive source variance based partitioning
US9578324B1 (en) 2014-06-27 2017-02-21 Google Inc. Video coding using statistical-based spatially differentiated partitioning
US10554965B2 (en) 2014-08-18 2020-02-04 Google Llc Motion-compensated partitioning
US10291931B2 (en) * 2016-10-13 2019-05-14 Ati Technologies Ulc Determining variance of a block of an image based on a motion vector for the block
EP3503548B1 (en) * 2017-12-19 2019-10-23 Axis AB Video encoding method and system
CN108335335B (zh) 2018-02-11 2019-06-21 北京大学深圳研究生院 一种基于增强图变换的点云属性压缩方法
US10802285B2 (en) 2018-03-05 2020-10-13 Invensas Corporation Remote optical engine for virtual reality or augmented reality headsets
WO2020141159A2 (en) * 2019-01-02 2020-07-09 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Unified transform type signaling and transform type dependent transform coefficient level coding
CN113114934B (zh) * 2021-03-31 2022-08-05 太原理工大学 尿红细胞多焦距视频采集方法与系统
CN117998094B (zh) * 2024-01-30 2024-09-06 广东科技学院 一种多媒体教学视频数据智能处理方法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5241395A (en) * 1989-08-07 1993-08-31 Bell Communications Research, Inc. Adaptive transform coding using variable block size
US5021891A (en) * 1990-02-27 1991-06-04 Qualcomm, Inc. Adaptive block size image compression method and system
US5107345A (en) 1990-02-27 1992-04-21 Qualcomm Incorporated Adaptive block size image compression method and system
WO1992022166A1 (en) * 1991-06-04 1992-12-10 Qualcomm Incorporated Adaptive block size image compression method and system
US5471248A (en) 1992-11-13 1995-11-28 National Semiconductor Corporation System for tile coding of moving images
KR100276427B1 (ko) * 1993-01-30 2000-12-15 윤종용 화상데이타의 압축 및 복원장치
TW224553B (en) * 1993-03-01 1994-06-01 Sony Co Ltd Method and apparatus for inverse discrete consine transform and coding/decoding of moving picture
EP0892562A3 (en) * 1993-04-09 1999-01-27 Sony Corporation Picture encoding method, picture encoding apparatus and picture recording medium
RU2122295C1 (ru) * 1994-04-29 1998-11-20 Виктор Павлович Дворкович Способ покадрового сжатия изображений
US5585944A (en) 1994-05-10 1996-12-17 Kaleida Labs, Inc. Method for compressing and decompressing images by subdividing pixel color distributions
JPH0811869A (ja) * 1994-06-27 1996-01-16 Dainippon Printing Co Ltd 紙カートン
KR960013055A (ko) 1994-09-27 1996-04-20 김광호 조건부 퀴드트리 분할방식의 화상압축방법 및 장치
JPH08205140A (ja) * 1995-01-31 1996-08-09 Canon Inc 画像圧縮装置
RU2093968C1 (ru) * 1995-08-02 1997-10-20 Закрытое акционерное общество "Техно-ТМ" Способ кодирования-декодирования изображений и устройство для его осуществления
US6633611B2 (en) * 1997-04-24 2003-10-14 Mitsubishi Denki Kabushiki Kaisha Method and apparatus for region-based moving image encoding and decoding
JP3570863B2 (ja) * 1997-08-05 2004-09-29 三菱電機株式会社 動画像復号化装置および動画像復号化方法
JPH11164325A (ja) * 1997-11-26 1999-06-18 Oki Electric Ind Co Ltd パノラマ画像生成方法及びそのプログラムを記録した記録媒体

Also Published As

Publication number Publication date
JP5384696B2 (ja) 2014-01-08
CA2389410C (en) 2011-06-28
BR0015341A (pt) 2003-07-15
JP2003523652A (ja) 2003-08-05
EP1230804A1 (en) 2002-08-14
AR033655A1 (es) 2004-01-07
AU1481101A (en) 2001-06-06
HK1053565A1 (en) 2003-10-24
MXPA02004577A (es) 2002-11-29
EP1230804B1 (en) 2011-12-21
KR20030036129A (ko) 2003-05-09
WO2001035673A1 (en) 2001-05-17
BR0015341B1 (pt) 2015-01-06
KR100740818B1 (ko) 2007-07-19
US6529634B1 (en) 2003-03-04
ES2376540T3 (es) 2012-03-14
CA2389410A1 (en) 2001-05-17
CN1421102A (zh) 2003-05-28
AU782176B2 (en) 2005-07-07
JP2012199963A (ja) 2012-10-18
TW517500B (en) 2003-01-11
IL149455A (en) 2007-07-04
RU2273112C2 (ru) 2006-03-27
CN1186942C (zh) 2005-01-26
ATE538598T1 (de) 2012-01-15
JP5289659B2 (ja) 2013-09-11
IL149455A0 (en) 2002-11-10

Similar Documents

Publication Publication Date Title
ZA200203276B (en) Variance based adaptive block size DCT image compression.
GB2373904B (en) Shoe size scanner system
AU2002228884A1 (en) Video data compression system
GB2380891B (en) Picture frame scanner
GC0000159A (en) Compression apparatus.
GB2371162B (en) Image data compression method
GB2377205B (en) Lenticular images
GB0007781D0 (en) Data compression
GB2375452B (en) Video compression
AU5776200A (en) Jpeg image artifacts reduction
GB2351407B (en) Video data compression
AU2001245662A1 (en) Two-dimensional image compression method
GB2377107B (en) Video/image communication with watermarking
GB2365245B (en) Video Compression
GB2352906B (en) Video data compression
GB9915610D0 (en) Video compression
IL130038A0 (en) Image compression
IL131094A0 (en) Image compression
GB0222297D0 (en) Image compression
GB9914476D0 (en) Video data compression
GB0018263D0 (en) Data compression
GB0007782D0 (en) Data compression
GB0122526D0 (en) Video compression
GB2352903B (en) Video data compression
AUPQ156399A0 (en) Image compression