WO2007103889A8 - System and method for providing error resilience, random access and rate control in scalable video communications - Google Patents

System and method for providing error resilience, random access and rate control in scalable video communications

Info

Publication number
WO2007103889A8
WO2007103889A8 PCT/US2007/063335 US2007063335W WO2007103889A8 WO 2007103889 A8 WO2007103889 A8 WO 2007103889A8 US 2007063335 W US2007063335 W US 2007063335W WO 2007103889 A8 WO2007103889 A8 WO 2007103889A8
Authority
WO
WIPO (PCT)
Prior art keywords
random access
rate control
information
scalable video
error resilience
Prior art date
Application number
PCT/US2007/063335
Other languages
French (fr)
Other versions
WO2007103889A3 (en
WO2007103889A2 (en
Inventor
Alexandros Eleftheriadis
Danny Hong
Ofer Shapiro
Thomas Wiegand
Original Assignee
Vidyo Inc
Alexandros Eleftheriadis
Danny Hong
Ofer Shapiro
Thomas Wiegand
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
Priority claimed from PCT/US2006/028367 external-priority patent/WO2007075196A1/en
Priority claimed from PCT/US2006/028368 external-priority patent/WO2008051181A1/en
Priority claimed from PCT/US2006/028366 external-priority patent/WO2008082375A2/en
Priority claimed from PCT/US2006/028365 external-priority patent/WO2008060262A1/en
Priority claimed from PCT/US2006/061815 external-priority patent/WO2007067990A2/en
Priority claimed from PCT/US2006/062569 external-priority patent/WO2007076486A2/en
Priority claimed from PCT/US2007/062357 external-priority patent/WO2007095640A2/en
Priority to CN200780007488.9D priority Critical patent/CN101421936B/en
Application filed by Vidyo Inc, Alexandros Eleftheriadis, Danny Hong, Ofer Shapiro, Thomas Wiegand filed Critical Vidyo Inc
Priority to EP07757937A priority patent/EP1997236A4/en
Priority to CA002644753A priority patent/CA2644753A1/en
Priority to JP2008557529A priority patent/JP5753341B2/en
Priority to AU2007223300A priority patent/AU2007223300A1/en
Priority to US11/691,621 priority patent/US8761263B2/en
Priority to PCT/US2007/065554 priority patent/WO2007115133A2/en
Priority to EP11164830A priority patent/EP2372922A1/en
Priority to EP07759745A priority patent/EP2008369A4/en
Priority to CN200780011922.0A priority patent/CN102318202B/en
Priority to JP2009503292A priority patent/JP2009544176A/en
Priority to CA002647723A priority patent/CA2647723A1/en
Priority to AU2007234543A priority patent/AU2007234543A1/en
Publication of WO2007103889A2 publication Critical patent/WO2007103889A2/en
Priority to US11/871,612 priority patent/US8594202B2/en
Priority to PCT/US2007/083351 priority patent/WO2008073610A1/en
Priority to US11/933,865 priority patent/US7701851B2/en
Priority to PCT/US2007/086958 priority patent/WO2008073881A2/en
Priority to US11/953,398 priority patent/US7933294B2/en
Publication of WO2007103889A3 publication Critical patent/WO2007103889A3/en
Publication of WO2007103889A8 publication Critical patent/WO2007103889A8/en
Priority to US12/622,074 priority patent/US8396134B2/en
Priority to US12/715,845 priority patent/US7948886B2/en
Priority to US13/052,741 priority patent/US8699522B2/en
Priority to US13/222,472 priority patent/US8681865B2/en
Priority to US14/072,638 priority patent/US20140105309A1/en
Priority to US14/156,243 priority patent/US8861613B2/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/14Systems for two-way working
    • H04N7/15Conference systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/129Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134Methods 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
    • H04N19/146Data rate or code amount at the encoder output
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/31Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability in the temporal domain
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/34Scalability techniques involving progressive bit-plane based encoding of the enhancement layer, e.g. fine granular scalability [FGS]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/59Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/85Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • H04N19/895Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder in combination with error concealment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234327Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/2662Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/647Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
    • H04N21/64784Data processing by the network
    • H04N21/64792Controlling the complexity of the content stream, e.g. by dropping packets

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Systems and methods for error resilient transmission, rate control, and random access in video communication systems that use scalable video coding are provided. Error resilience is obtained by using information from low resolution layers to conceal or compensate loss of high resolution layer information. The same mechanism is used for rate control by selectively eliminating high resolution layer information from transmitted signals, which elimination can be compensated at the receiver using information from low resolution layers. Further, random access or switching between low and high resolutions is also achieved by using information from low resolution layers to compensate for high resolution spatial layer packets that may have not been received prior to the switching time.
PCT/US2007/063335 2005-07-20 2007-03-05 System and method for providing error resilience, random access and rate control in scalable video communications WO2007103889A2 (en)

Priority Applications (24)

Application Number Priority Date Filing Date Title
EP07757937A EP1997236A4 (en) 2006-03-03 2007-03-05 System and method for providing error resilience, random access and rate control in scalable video communications
CA002644753A CA2644753A1 (en) 2006-03-03 2007-03-05 System and method for providing error resilience, random access and rate control in scalable video communications
JP2008557529A JP5753341B2 (en) 2006-03-03 2007-03-05 System and method for providing error resilience, random access, and rate control in scalable video communication
AU2007223300A AU2007223300A1 (en) 2006-01-27 2007-03-05 System and method for providing error resilience, random access and rate control in scalable video communications
CN200780007488.9D CN101421936B (en) 2006-03-03 2007-03-05 For the system and method providing error resilience, Stochastic accessing and rate to control in scalable video communications
US11/691,621 US8761263B2 (en) 2006-03-27 2007-03-27 System and method for management of scalability information in scalable video and audio coding systems using control messages
EP11164830A EP2372922A1 (en) 2006-03-29 2007-03-29 System and method for transcoding between scalable and non-scalable video codecs
JP2009503292A JP2009544176A (en) 2006-03-29 2007-03-29 System and method for transcoding between a scalable video codec and a non-scalable video codec
AU2007234543A AU2007234543A1 (en) 2006-03-29 2007-03-29 System and method for transcoding between scalable and non-scalable video codecs
CA002647723A CA2647723A1 (en) 2006-03-29 2007-03-29 System and method for transcoding between scalable and non-scalable video codecs
PCT/US2007/065554 WO2007115133A2 (en) 2006-03-29 2007-03-29 System and method for transcoding between scalable and non-scalable video codecs
CN200780011922.0A CN102318202B (en) 2006-03-29 2007-03-29 System and method for transcoding between scalable and non-scalable video codecs
EP07759745A EP2008369A4 (en) 2006-03-29 2007-03-29 System and method for transcoding between scalable and non-scalable video codecs
US11/871,612 US8594202B2 (en) 2006-07-21 2007-10-12 Systems and methods for signaling and performing temporal level switching in scalable video coding
US11/933,865 US7701851B2 (en) 2005-07-20 2007-11-01 System and method for the control of the transmission rate in packet-based digital communications
PCT/US2007/083351 WO2008073610A1 (en) 2006-12-08 2007-11-01 System and method for the control of the transmission rate in packet-based digital communications
US11/953,398 US7933294B2 (en) 2005-07-20 2007-12-10 System and method for low-delay, interactive communication using multiple TCP connections and scalable coding
PCT/US2007/086958 WO2008073881A2 (en) 2006-12-08 2007-12-10 System and method for low-delay, interactive communication using multiple tcp connections and scalable coding
US12/622,074 US8396134B2 (en) 2006-07-21 2009-11-19 System and method for scalable video coding using telescopic mode flags
US12/715,845 US7948886B2 (en) 2005-07-20 2010-03-02 System and method for the control of the transmission rate in packet-based digital communications
US13/052,741 US8699522B2 (en) 2005-07-20 2011-03-21 System and method for low delay, interactive communication using multiple TCP connections and scalable coding
US13/222,472 US8681865B2 (en) 2006-03-29 2011-08-31 System and method for transcoding between scalable and non-scalable video codecs
US14/072,638 US20140105309A1 (en) 2006-07-21 2013-11-05 Systems and methods for signaling and performing temporal level switching in scalable video coding
US14/156,243 US8861613B2 (en) 2006-07-21 2014-01-15 Systems and methods for signaling and performing temporal level switching in scalable video coding

Applications Claiming Priority (26)

Application Number Priority Date Filing Date Title
US77876006P 2006-03-03 2006-03-03
US60/778,760 2006-03-03
US78699706P 2006-03-29 2006-03-29
US78703106P 2006-03-29 2006-03-29
US60/787,031 2006-03-29
US60/786,997 2006-03-29
USPCT/US2006/028367 2006-07-20
USPCT/US2006/061815 2006-07-20
USPCT/US2006/028366 2006-07-20
USPCT/US2006/028365 2006-07-20
USPCT/US2006/028368 2006-07-20
PCT/US2006/028367 WO2007075196A1 (en) 2005-09-07 2006-07-21 System and method for a high reliability base layer trunk
PCT/US2006/028368 WO2008051181A1 (en) 2006-07-21 2006-07-21 System and method for jitter buffer reduction in scalable coding
PCT/US2006/028366 WO2008082375A2 (en) 2005-09-07 2006-07-21 System and method for a conference server architecture for low delay and distributed conferencing applications
PCT/US2006/028365 WO2008060262A1 (en) 2005-09-07 2006-07-21 System and method for scalable and low-delay videoconferencing using scalable video coding
US82960906P 2006-10-16 2006-10-16
US60/829,609 2006-10-16
US86251006P 2006-10-23 2006-10-23
US60/862,510 2006-10-23
PCT/US2006/061815 WO2007067990A2 (en) 2005-12-08 2006-12-08 Systems and methods for error resilience and random access in video communication systems
PCT/US2006/062569 WO2007076486A2 (en) 2005-12-22 2006-12-22 System and method for videoconferencing using scalable video coding and compositing scalable video conferencing servers
USPCT/US2006/062569 2006-12-22
US88414807P 2007-01-09 2007-01-09
US60/884,148 2007-01-09
PCT/US2007/062357 WO2007095640A2 (en) 2006-02-16 2007-02-16 System and method for thinning of scalable video coding bit-streams
USPCT/US2007/062357 2007-02-16

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2006/062569 Continuation-In-Part WO2007076486A2 (en) 2005-07-20 2006-12-22 System and method for videoconferencing using scalable video coding and compositing scalable video conferencing servers
PCT/US2007/083351 Continuation-In-Part WO2008073610A1 (en) 2005-07-20 2007-11-01 System and method for the control of the transmission rate in packet-based digital communications

Related Child Applications (4)

Application Number Title Priority Date Filing Date
PCT/US2006/028367 Continuation-In-Part WO2007075196A1 (en) 2005-09-07 2006-07-21 System and method for a high reliability base layer trunk
PCT/US2006/062569 Continuation-In-Part WO2007076486A2 (en) 2005-07-20 2006-12-22 System and method for videoconferencing using scalable video coding and compositing scalable video conferencing servers
PCT/US2007/083351 Continuation-In-Part WO2008073610A1 (en) 2005-07-20 2007-11-01 System and method for the control of the transmission rate in packet-based digital communications
US11/933,865 Continuation-In-Part US7701851B2 (en) 2005-07-20 2007-11-01 System and method for the control of the transmission rate in packet-based digital communications

Publications (3)

Publication Number Publication Date
WO2007103889A2 WO2007103889A2 (en) 2007-09-13
WO2007103889A3 WO2007103889A3 (en) 2008-02-28
WO2007103889A8 true WO2007103889A8 (en) 2008-10-09

Family

ID=39884835

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/063335 WO2007103889A2 (en) 2005-07-20 2007-03-05 System and method for providing error resilience, random access and rate control in scalable video communications

Country Status (3)

Country Link
EP (1) EP1997236A4 (en)
AU (1) AU2007223300A1 (en)
WO (1) WO2007103889A2 (en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8320450B2 (en) 2006-03-29 2012-11-27 Vidyo, Inc. System and method for transcoding between scalable and non-scalable video codecs
US7844097B2 (en) * 2007-12-03 2010-11-30 Samplify Systems, Inc. Compression and decompression of computed tomography data
US8319820B2 (en) * 2008-06-23 2012-11-27 Radvision, Ltd. Systems, methods, and media for providing cascaded multi-point video conferencing units
EP2152009A1 (en) * 2008-08-06 2010-02-10 Thomson Licensing Method for predicting a lost or damaged block of an enhanced spatial layer frame and SVC-decoder adapted therefore
US9091851B2 (en) 2010-02-28 2015-07-28 Microsoft Technology Licensing, Llc Light control in head mounted displays
US8472120B2 (en) 2010-02-28 2013-06-25 Osterhout Group, Inc. See-through near-eye display glasses with a small scale image source
US9097891B2 (en) 2010-02-28 2015-08-04 Microsoft Technology Licensing, Llc See-through near-eye display glasses including an auto-brightness control for the display brightness based on the brightness in the environment
US9097890B2 (en) 2010-02-28 2015-08-04 Microsoft Technology Licensing, Llc Grating in a light transmissive illumination system for see-through near-eye display glasses
US9759917B2 (en) 2010-02-28 2017-09-12 Microsoft Technology Licensing, Llc AR glasses with event and sensor triggered AR eyepiece interface to external devices
WO2011106797A1 (en) 2010-02-28 2011-09-01 Osterhout Group, Inc. Projection triggering through an external marker in an augmented reality eyepiece
US9285589B2 (en) 2010-02-28 2016-03-15 Microsoft Technology Licensing, Llc AR glasses with event and sensor triggered control of AR eyepiece applications
US9341843B2 (en) 2010-02-28 2016-05-17 Microsoft Technology Licensing, Llc See-through near-eye display glasses with a small scale image source
US8482859B2 (en) 2010-02-28 2013-07-09 Osterhout Group, Inc. See-through near-eye display glasses wherein image light is transmitted to and reflected from an optically flat film
US8477425B2 (en) 2010-02-28 2013-07-02 Osterhout Group, Inc. See-through near-eye display glasses including a partially reflective, partially transmitting optical element
US9223134B2 (en) 2010-02-28 2015-12-29 Microsoft Technology Licensing, Llc Optical imperfections in a light transmissive illumination system for see-through near-eye display glasses
US10180572B2 (en) 2010-02-28 2019-01-15 Microsoft Technology Licensing, Llc AR glasses with event and user action control of external applications
US20120249797A1 (en) 2010-02-28 2012-10-04 Osterhout Group, Inc. Head-worn adaptive display
US9129295B2 (en) 2010-02-28 2015-09-08 Microsoft Technology Licensing, Llc See-through near-eye display glasses with a fast response photochromic film system for quick transition from dark to clear
US9366862B2 (en) 2010-02-28 2016-06-14 Microsoft Technology Licensing, Llc System and method for delivering content to a group of see-through near eye display eyepieces
US9134534B2 (en) 2010-02-28 2015-09-15 Microsoft Technology Licensing, Llc See-through near-eye display glasses including a modular image source
US8467133B2 (en) 2010-02-28 2013-06-18 Osterhout Group, Inc. See-through display with an optical assembly including a wedge-shaped illumination system
US9182596B2 (en) 2010-02-28 2015-11-10 Microsoft Technology Licensing, Llc See-through near-eye display glasses with the optical assembly including absorptive polarizers or anti-reflective coatings to reduce stray light
US8488246B2 (en) 2010-02-28 2013-07-16 Osterhout Group, Inc. See-through near-eye display glasses including a curved polarizing film in the image source, a partially reflective, partially transmitting optical element and an optically flat film
US20150309316A1 (en) 2011-04-06 2015-10-29 Microsoft Technology Licensing, Llc Ar glasses with predictive control of external device based on event input
US9229227B2 (en) 2010-02-28 2016-01-05 Microsoft Technology Licensing, Llc See-through near-eye display glasses with a light transmissive wedge shaped illumination system
US9128281B2 (en) 2010-09-14 2015-09-08 Microsoft Technology Licensing, Llc Eyepiece with uniformly illuminated reflective display
EP2718840A4 (en) 2011-06-08 2015-03-04 Vidyo Inc Systems and methods for improved interactive content sharing in video communication systems
US8184069B1 (en) 2011-06-20 2012-05-22 Google Inc. Systems and methods for adaptive transmission of data
WO2014043165A2 (en) 2012-09-11 2014-03-20 Vidyo, Inc. System and method for agent-based integration of instant messaging and video communication systems

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1670260A3 (en) * 2002-01-23 2010-03-03 Nokia Corporation Grouping of image frames in video coding
US7072394B2 (en) * 2002-08-27 2006-07-04 National Chiao Tung University Architecture and method for fine granularity scalable video coding
FR2849982B1 (en) * 2003-01-15 2005-04-08 Canon Kk DECODING AN ENCODED DIGITAL IMAGE ACCORDING TO MULTIPLE LEVELS OF RESOLUTION

Also Published As

Publication number Publication date
EP1997236A4 (en) 2011-05-04
EP1997236A2 (en) 2008-12-03
WO2007103889A3 (en) 2008-02-28
AU2007223300A1 (en) 2007-09-13
WO2007103889A2 (en) 2007-09-13

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