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    • 43. 发明申请
    • METHOD AND APPARATUS FOR ENCODING AND DECODING DATA WITH ERROR CORRECTION
    • 用纠错编码和解码数据的方法和装置
    • WO2008001304A2
    • 2008-01-03
    • PCT/IB2007/052461
    • 2007-06-26
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.WANG, Jin
    • WANG, Jin
    • H03M13/15H03M13/1515H04N19/65H04N19/66H04N19/89H04N21/234327H04N21/23611H04N21/238H04N21/2383H04N21/4382H04N21/4425H04N21/84
    • The invention provides a method and apparatus for encoding and decoding data with error correction. In a data packet of a video stream, important data may be discarded because the total number of errors of important data and normal data exceeds a limit, even though important data itself has no or little error. To avoid that important data is influenced by errors of normal data, a data packet with important data being as information data is generated by the invention, and other data bits in the data packet are filled with non- information data. When decoding the video data stream, non-information data is firstly recovered to the data with no error. Therefore the important data can be error corrected and will not be discarded if the number of errors of important data itself does not exceed a specific error number limit, thereby increasing the error correction ability to the important data.
    • 本发明提供了一种用于纠错编码和解码数据的方法和设备。 在视频流的数据包中,即使重要数据本身没有错误或者错误很少,由于重要数据和正常数据的错误总数超过限制,所以重要数据可能被丢弃。 为避免重要数据受到正常数据错误的影响,本发明生成重要数据为数据包的数据包,数据包中的其他数据位填充非信息数据。 在对视频数据流进行解码时,首先将非信息数据恢复到没有错误的数据。 因此,如果重要数据本身的错误数量不超过特定的错误数量限制,则重要数据可以被纠错并且不会被丢弃,从而增加对重要数据的纠错能力。
    • 46. 发明申请
    • SYSTEM AND METHOD FOR THINNING OF SCALABLE VIDEO CODING BIT-STREAMS
    • 用于清理可扩展视频编码位流的系统和方法
    • WO2007095640A2
    • 2007-08-23
    • PCT/US2007/062357
    • 2007-02-16
    • LAYERED MEDIA, INC.HONG, DannyWIEGAND, ThomasELEFTHERIADIS, AlexandrosSHAPIRO, Ofer
    • HONG, DannyWIEGAND, ThomasELEFTHERIADIS, AlexandrosSHAPIRO, Ofer
    • H04N19/89
    • H04N7/15H04N19/132H04N19/159H04N19/164H04N19/172H04N19/176H04N19/187H04N19/30H04N19/40H04N19/65H04N19/89H04N21/234327H04N21/4621H04N21/4788H04N21/6377H04N21/6379H04N21/658H04N21/8451
    • A system for videoconferencing that offers, among other features, extremely low end-to-end delay as well as very high scalability. The system accommodates heterogeneous receivers and networks, as well as the best-effort nature of networks such as those based on the Internet Protocol. The system relies on scalable video coding to provide a coded representation of a source video signal at multiple temporal, quality, and spatial resolutions. These resolutions are represented by distinct bitstream components that are created at each end-user encoder. System architecture and processes called SVC Thinning allow the separation of data into data used for prediction in other pictures and data not used for prediction in other pictures. SVC Thinning processes, which can be performed at video conferencing endpoints or at MCUs, can selectively remove or replace with fewer bits the data not used for prediction in other pictures from transmitted bit streams. This separation and selective removal or replacement of data for transmission allows a trade-off between scalability support (i.e. number of decodable video resolutions), error resiliency and coding efficiency.
    • 一种用于视频会议的系统,除了其他功能外,还提供非常低的端到端延迟以及非常高的可扩展性。 该系统适应异构接收机和网络,以及诸如基于因特网协议的网络的尽力而为的性质。 该系统依赖于可分级视频编码,以多个时间,质量和空间分辨率提供源视频信号的编码表示。 这些分辨率由在每个最终用户编码器处创建的不同比特流组件表示。 称为SVC Thinning的系统架构和过程允许将数据分离成用于其他图像中的预测数据和不用于其他图像中的预测的数据。 可以在视频会议端点或MCU处执行的SVC减薄处理可以以较少的位选择性地去除或替换未被发送的比特流在其他图像中预测的数据。 这种分离和选择性去除或替换用于传输的数据允许在可扩展性支持(即,可解码视频分辨率的数量),错误弹性和编码效率之间进行权衡。