WO1998036553A3 - Method and apparatus for recovering quantized coefficients - Google Patents

Method and apparatus for recovering quantized coefficients Download PDF

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Publication number
WO1998036553A3
WO1998036553A3 PCT/US1998/003031 US9803031W WO9836553A3 WO 1998036553 A3 WO1998036553 A3 WO 1998036553A3 US 9803031 W US9803031 W US 9803031W WO 9836553 A3 WO9836553 A3 WO 9836553A3
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WO
WIPO (PCT)
Prior art keywords
quantized coefficients
recovering
adjusting
recovering quantized
signal
Prior art date
Application number
PCT/US1998/003031
Other languages
French (fr)
Other versions
WO1998036553A2 (en
Inventor
Dinei Afonso Ferreir Florencio
Iraj Sodagar
Original Assignee
Sarnoff Corp
Sharp Kk
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 Sarnoff Corp, Sharp Kk filed Critical Sarnoff Corp
Priority to JP53599198A priority Critical patent/JP2001508976A/en
Priority to EP98906493A priority patent/EP0962092A4/en
Publication of WO1998036553A2 publication Critical patent/WO1998036553A2/en
Publication of WO1998036553A3 publication Critical patent/WO1998036553A3/en

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    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • 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
    • H04N19/10—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
    • 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
    • H04N19/169—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
    • H04N19/10—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
    • 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
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
    • 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
    • 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

Abstract

An apparatus (300, 400) and a concomitant method is disclosed for recovering or adjusting quantized coefficients by using a nonlinear method. The method operates by fitting the received signal into one of several predefined classes, and adjusting the signal as appropriate to better fit the best suited class.
PCT/US1998/003031 1997-02-18 1998-02-18 Method and apparatus for recovering quantized coefficients WO1998036553A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP53599198A JP2001508976A (en) 1997-02-18 1998-02-18 Method and apparatus for restoring quantized coefficients
EP98906493A EP0962092A4 (en) 1997-02-18 1998-02-18 Method and apparatus for recovering quantized coefficients

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US3884697P 1997-02-18 1997-02-18
US09/024,084 US6373894B1 (en) 1997-02-18 1998-02-17 Method and apparatus for recovering quantized coefficients
US09/024,084 1998-02-17
US60/038,846 1998-02-17

Publications (2)

Publication Number Publication Date
WO1998036553A2 WO1998036553A2 (en) 1998-08-20
WO1998036553A3 true WO1998036553A3 (en) 1998-11-05

Family

ID=26698018

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/003031 WO1998036553A2 (en) 1997-02-18 1998-02-18 Method and apparatus for recovering quantized coefficients

Country Status (4)

Country Link
US (1) US6373894B1 (en)
EP (1) EP0962092A4 (en)
JP (1) JP2001508976A (en)
WO (1) WO1998036553A2 (en)

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US7042946B2 (en) * 2002-04-29 2006-05-09 Koninklijke Philips Electronics N.V. Wavelet based coding using motion compensated filtering based on both single and multiple reference frames
TWI243615B (en) * 2004-10-11 2005-11-11 Ind Tech Res Inst System for enhancing compression ratio of scalable video coding and method thereof
US8422546B2 (en) * 2005-05-25 2013-04-16 Microsoft Corporation Adaptive video encoding using a perceptual model
US8503536B2 (en) * 2006-04-07 2013-08-06 Microsoft Corporation Quantization adjustments for DC shift artifacts
US20070237237A1 (en) * 2006-04-07 2007-10-11 Microsoft Corporation Gradient slope detection for video compression
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
US8130828B2 (en) * 2006-04-07 2012-03-06 Microsoft Corporation Adjusting quantization to preserve non-zero AC coefficients
US8711925B2 (en) 2006-05-05 2014-04-29 Microsoft Corporation Flexible quantization
US8238424B2 (en) 2007-02-09 2012-08-07 Microsoft Corporation Complexity-based adaptive preprocessing for multiple-pass video compression
US8498335B2 (en) * 2007-03-26 2013-07-30 Microsoft Corporation Adaptive deadzone size adjustment in quantization
US20080240257A1 (en) * 2007-03-26 2008-10-02 Microsoft Corporation Using quantization bias that accounts for relations between transform bins and quantization bins
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
US8189933B2 (en) * 2008-03-31 2012-05-29 Microsoft Corporation Classifying and controlling encoding quality for textured, dark smooth and smooth video content
US8897359B2 (en) 2008-06-03 2014-11-25 Microsoft Corporation Adaptive quantization for enhancement layer video coding
EP2457378A4 (en) * 2009-07-23 2016-08-10 Ericsson Telefon Ab L M Method and apparatus for encoding and decoding of images
US8396119B1 (en) * 2009-09-30 2013-03-12 Ambarella, Inc. Data sample compression and decompression using randomized quantization bins

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Also Published As

Publication number Publication date
WO1998036553A2 (en) 1998-08-20
EP0962092A4 (en) 2001-06-20
EP0962092A2 (en) 1999-12-08
JP2001508976A (en) 2001-07-03
US6373894B1 (en) 2002-04-16

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