MX2009010182A - Modificar una corriente de bits codificada. - Google Patents

Modificar una corriente de bits codificada.

Info

Publication number
MX2009010182A
MX2009010182A MX2009010182A MX2009010182A MX2009010182A MX 2009010182 A MX2009010182 A MX 2009010182A MX 2009010182 A MX2009010182 A MX 2009010182A MX 2009010182 A MX2009010182 A MX 2009010182A MX 2009010182 A MX2009010182 A MX 2009010182A
Authority
MX
Mexico
Prior art keywords
coded
bitstream
coding
implementations
watermarking
Prior art date
Application number
MX2009010182A
Other languages
English (en)
Inventor
Peng Yin
Oscar Divorra Escoda
Dekun Zou
Jeffrey Adam Bloom
Original Assignee
Thomson Licensing
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 Thomson Licensing filed Critical Thomson Licensing
Publication of MX2009010182A publication Critical patent/MX2009010182A/es

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/0021—Image watermarking
    • G06T1/0028—Adaptive watermarking, e.g. Human Visual System [HVS]-based watermarking
    • G06T1/0035—Output size adaptive watermarking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • 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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/467—Embedding additional information in the video signal during the compression process characterised by the embedded information being invisible, e.g. watermarking
    • 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
    • H04N19/48—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using compressed domain processing techniques other than decoding, e.g. modification of transform coefficients, variable length coding [VLC] data or run-length data
    • 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
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83—Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/835—Generation of protective data, e.g. certificates
    • H04N21/8358—Generation of protective data, e.g. certificates involving watermark
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2201/00—General purpose image data processing
    • G06T2201/005—Image watermarking
    • G06T2201/0053—Embedding of the watermark in the coding stream, possibly without decoding; Embedding of the watermark in the compressed domain

Abstract

Las implementaciones se relacionan con varios aspectos para modificar o utilizar una corriente de bits codificada, o para recuperar la información de marca de agua de datos. En una implementación, la corriente de bits codificada se modifica para permitir la aplicación de una marca de agua en una corriente de bits codificada sin cambiar la codificación de cualquier otro elemento de sintaxis en la corriente de bits. Esto se lleva a cabo al identificar las condiciones necesarias para cambiar un elemento de sintaxis codificado sin interrumpir la interpretación de los elementos codificados posteriores. El elemento de sintaxis codificado se reemplaza con otro valor codificado cuando el valor modificado genera las mismas variables de decodificación que el valor original hubiera generado. Las implementaciones particulares se enfocan en elementos de sintaxis codificados con el uso de la codificación por entropía, incluyendo por ejemplo, la codificación aritmética binaria adaptable con base en contexto (CABAC). Sin considerar el tipo de codificación o marca de agua, varias implementaciones pueden proporcionar la recuperación de la información de marca de agua. Las implementaciones particulares recuperan la información de marca de agua con el uso de datos de detección y la información de características.
MX2009010182A 2007-03-23 2007-11-02 Modificar una corriente de bits codificada. MX2009010182A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US91970207P 2007-03-23 2007-03-23
US93463407P 2007-06-14 2007-06-14
PCT/US2007/023172 WO2008118145A1 (en) 2007-03-23 2007-11-02 Modifying a coded bitstream

Publications (1)

Publication Number Publication Date
MX2009010182A true MX2009010182A (es) 2009-10-12

Family

ID=39106118

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2009010182A MX2009010182A (es) 2007-03-23 2007-11-02 Modificar una corriente de bits codificada.

Country Status (9)

Country Link
US (2) US8358703B2 (es)
EP (1) EP2130173B1 (es)
JP (1) JP5277180B2 (es)
KR (1) KR101398534B1 (es)
CN (1) CN101636761B (es)
BR (1) BRPI0721427B1 (es)
CA (1) CA2681402C (es)
MX (1) MX2009010182A (es)
WO (2) WO2008118146A1 (es)

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Also Published As

Publication number Publication date
JP5277180B2 (ja) 2013-08-28
WO2008118145A1 (en) 2008-10-02
BRPI0721427B1 (pt) 2019-01-15
US9299120B2 (en) 2016-03-29
JP2010522470A (ja) 2010-07-01
WO2008118146A1 (en) 2008-10-02
EP2130173A1 (en) 2009-12-09
KR20100014902A (ko) 2010-02-11
US8358703B2 (en) 2013-01-22
KR101398534B1 (ko) 2014-05-27
US20100169349A1 (en) 2010-07-01
US20100027684A1 (en) 2010-02-04
CN101636761B (zh) 2013-07-24
CN101636761A (zh) 2010-01-27
BRPI0721427A2 (pt) 2014-02-25
EP2130173B1 (en) 2019-01-02
CA2681402C (en) 2016-02-16
CA2681402A1 (en) 2008-10-02

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