WO2003005730A1 - Image encoding method and image encoding apparatus - Google Patents

Image encoding method and image encoding apparatus Download PDF

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Publication number
WO2003005730A1
WO2003005730A1 PCT/JP2002/006610 JP0206610W WO03005730A1 WO 2003005730 A1 WO2003005730 A1 WO 2003005730A1 JP 0206610 W JP0206610 W JP 0206610W WO 03005730 A1 WO03005730 A1 WO 03005730A1
Authority
WO
WIPO (PCT)
Prior art keywords
image
encoding
image encoding
bit rate
screen
Prior art date
Application number
PCT/JP2002/006610
Other languages
French (fr)
Japanese (ja)
Inventor
Naoki Morimoto
Makoto Yamada
Original Assignee
Sony Corporation
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 Sony Corporation filed Critical Sony Corporation
Publication of WO2003005730A1 publication Critical patent/WO2003005730A1/en

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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
    • H04N19/134—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
    • H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer
    • 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
    • H04N19/115—Selection of the code volume for a coding unit prior to 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
    • H04N19/134—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
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • 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
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
    • 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

Abstract

An image encoding method and an image encoding apparatus capable of improving reproduction image quality by adaptively varying the bit amount assigned when encoding an image, according to the image feature. Each image of an image group is encoded at a variable bit rate by an in-screen encoding or prediction encoding. The target bit rate of the in-screen encoding is calculated according to the image feauture.
PCT/JP2002/006610 2001-07-06 2002-06-28 Image encoding method and image encoding apparatus WO2003005730A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001206092A JP2003023637A (en) 2001-07-06 2001-07-06 Image coding method and image coding device
JP2001-206092 2001-07-06

Publications (1)

Publication Number Publication Date
WO2003005730A1 true WO2003005730A1 (en) 2003-01-16

Family

ID=19042282

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/006610 WO2003005730A1 (en) 2001-07-06 2002-06-28 Image encoding method and image encoding apparatus

Country Status (2)

Country Link
JP (1) JP2003023637A (en)
WO (1) WO2003005730A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7195588B2 (en) 2004-03-01 2007-03-27 Olympus Corporation Endoscope image pick-up apparatus

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4617644B2 (en) 2003-07-18 2011-01-26 ソニー株式会社 Encoding apparatus and method
EP1897484B1 (en) * 2004-03-04 2015-12-30 Olympus Corporation Endoscope image pickup device
WO2006090755A1 (en) * 2005-02-23 2006-08-31 Canon Kabushiki Kaisha Image processing apparatus
JP4251650B2 (en) 2005-03-28 2009-04-08 株式会社カシオ日立モバイルコミュニケーションズ Image processing apparatus and program
JP4794987B2 (en) * 2005-11-09 2011-10-19 キヤノン株式会社 Video signal processing device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0646270A (en) * 1992-07-21 1994-02-18 Matsushita Electric Ind Co Ltd Picture coding method and picture coder
JPH114444A (en) * 1997-06-11 1999-01-06 Sony Corp Image coder and its method
WO1999003282A1 (en) * 1997-07-08 1999-01-21 Sony Corporation Video data encoder, video data encoding method, video data transmitter, and video data recording medium
JP2000287210A (en) * 1999-03-31 2000-10-13 Nec Ic Microcomput Syst Ltd Method and unit for compressing image
JP2001028753A (en) * 1999-07-13 2001-01-30 Victor Co Of Japan Ltd Dynamic image coder and its method
JP2001084698A (en) * 1999-09-09 2001-03-30 Kenwood Corp Digital recording system and method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0646270A (en) * 1992-07-21 1994-02-18 Matsushita Electric Ind Co Ltd Picture coding method and picture coder
JPH114444A (en) * 1997-06-11 1999-01-06 Sony Corp Image coder and its method
WO1999003282A1 (en) * 1997-07-08 1999-01-21 Sony Corporation Video data encoder, video data encoding method, video data transmitter, and video data recording medium
JP2000287210A (en) * 1999-03-31 2000-10-13 Nec Ic Microcomput Syst Ltd Method and unit for compressing image
JP2001028753A (en) * 1999-07-13 2001-01-30 Victor Co Of Japan Ltd Dynamic image coder and its method
JP2001084698A (en) * 1999-09-09 2001-03-30 Kenwood Corp Digital recording system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7195588B2 (en) 2004-03-01 2007-03-27 Olympus Corporation Endoscope image pick-up apparatus

Also Published As

Publication number Publication date
JP2003023637A (en) 2003-01-24

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