JP4756949B2 - 画像復号装置及びその制御方法、並びに、コンピュータプログラム及びコンピュータ可読記憶媒体 - Google Patents

画像復号装置及びその制御方法、並びに、コンピュータプログラム及びコンピュータ可読記憶媒体 Download PDF

Info

Publication number
JP4756949B2
JP4756949B2 JP2005230080A JP2005230080A JP4756949B2 JP 4756949 B2 JP4756949 B2 JP 4756949B2 JP 2005230080 A JP2005230080 A JP 2005230080A JP 2005230080 A JP2005230080 A JP 2005230080A JP 4756949 B2 JP4756949 B2 JP 4756949B2
Authority
JP
Japan
Prior art keywords
quantization
image data
decoding
scaling
quantization table
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 - Fee Related
Application number
JP2005230080A
Other languages
English (en)
Japanese (ja)
Other versions
JP2007049312A (ja
JP2007049312A5 (enExample
Inventor
忠義 中山
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
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2005230080A priority Critical patent/JP4756949B2/ja
Publication of JP2007049312A publication Critical patent/JP2007049312A/ja
Publication of JP2007049312A5 publication Critical patent/JP2007049312A5/ja
Application granted granted Critical
Publication of JP4756949B2 publication Critical patent/JP4756949B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
JP2005230080A 2005-08-08 2005-08-08 画像復号装置及びその制御方法、並びに、コンピュータプログラム及びコンピュータ可読記憶媒体 Expired - Fee Related JP4756949B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005230080A JP4756949B2 (ja) 2005-08-08 2005-08-08 画像復号装置及びその制御方法、並びに、コンピュータプログラム及びコンピュータ可読記憶媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005230080A JP4756949B2 (ja) 2005-08-08 2005-08-08 画像復号装置及びその制御方法、並びに、コンピュータプログラム及びコンピュータ可読記憶媒体

Publications (3)

Publication Number Publication Date
JP2007049312A JP2007049312A (ja) 2007-02-22
JP2007049312A5 JP2007049312A5 (enExample) 2008-08-21
JP4756949B2 true JP4756949B2 (ja) 2011-08-24

Family

ID=37851795

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005230080A Expired - Fee Related JP4756949B2 (ja) 2005-08-08 2005-08-08 画像復号装置及びその制御方法、並びに、コンピュータプログラム及びコンピュータ可読記憶媒体

Country Status (1)

Country Link
JP (1) JP4756949B2 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2828013C (en) 2011-02-25 2016-07-26 Blackberry Limited Methods and devices for data compression using offset-based adaptive reconstruction levels
US20130083845A1 (en) * 2011-09-30 2013-04-04 Research In Motion Limited Methods and devices for data compression using a non-uniform reconstruction space
EP2595382B1 (en) 2011-11-21 2019-01-09 BlackBerry Limited Methods and devices for encoding and decoding transform domain filters
US20130272390A1 (en) * 2012-04-16 2013-10-17 Qualcomm Incorporated Uniform granularity for quantization matrix in video coding

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3194317B2 (ja) * 1993-06-10 2001-07-30 日本電信電話株式会社 画像信号用可変レート符号化装置
JPH08102907A (ja) * 1994-09-30 1996-04-16 Matsushita Electric Ind Co Ltd 丸め符号化器及び丸め復号化器
JPH08251420A (ja) * 1995-03-14 1996-09-27 Fuji Xerox Co Ltd カラー画像処理装置
JP2000307879A (ja) * 1999-04-15 2000-11-02 Matsushita Graphic Communication Systems Inc カラー画像通信方法およびカラー画像通信装置
JP2002374533A (ja) * 2001-06-13 2002-12-26 Fuji Xerox Co Ltd 画像符号化装置および画像復号装置ならびにその方法
JP2003204551A (ja) * 2002-01-09 2003-07-18 Minolta Co Ltd 画像処理装置，画像形成装置および画像処理プログラム

Also Published As

Publication number Publication date
JP2007049312A (ja) 2007-02-22

Similar Documents

Publication Publication Date Title
Wallace The JPEG still picture compression standard
JP4365957B2 (ja) 画像処理方法及びその装置及び記憶媒体
US20170339430A1 (en) Encoder, decoder, method of encoding data, method of decoding data, utilizing data format transformations
JP4979655B2 (ja) 画像符号化装置及びその制御方法
US20080267495A1 (en) Image compressing method and image compressing apparatus
US7499592B2 (en) Image decoding apparatus and its control method
RU2008150330A (ru) Сжатие видеоданных без видимых потерь
US20130251261A1 (en) Method And Apparatus For Image Data Compression
CN101653004A (zh) 从编码比特流选择性地解码预定数据单元的解码器
US20050276500A1 (en) Image encoding apparatus, and image processing apparatus and its control method
US8270734B2 (en) Method and apparatus for image processing of data including transparency information
JP4756949B2 (ja) 画像復号装置及びその制御方法、並びに、コンピュータプログラム及びコンピュータ可読記憶媒体
US7643695B2 (en) Image coding apparatus and its control method, and computer program and computer readable storage medium
US8600181B2 (en) Method for compressing images and a format for compressed images
JP2016092589A (ja) 符号化装置及びその制御方法
KR20170098163A (ko) 이미지 부호화 및 복호화 방법, 이를 이용하는 이미지 부호화기 및 이미지 복호화기
JPH1175183A (ja) 画像信号の処理方法及び装置、記録媒体
JPH0487460A (ja) 画像処理装置
JP4241517B2 (ja) 画像符号化装置及び画像復号装置
US11803985B2 (en) Information processing apparatus, information processing method, and recording medium
JP3732900B2 (ja) 画像圧縮装置および画像伸張装置
JP4262144B2 (ja) 画像符号化装置及び方法
US20040170329A1 (en) Image processing apparatus, image data processing method, and recording medium
JP3844276B2 (ja) 画像処理装置
JP2009038740A (ja) 画像符号化装置

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080707

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080707

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20101209

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101213

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110209

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110523

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110531

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140610

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees