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    REFERENCE PICTURE MARKING IN SCALABLE VIDEO ENCODING AND DECODING
    41.
    发明申请
    REFERENCE PICTURE MARKING IN SCALABLE VIDEO ENCODING AND DECODING 有权
    可扩展视频编码和解码中的参考图片标记

    公开(公告)号：US20070223575A1

    公开(公告)日：2007-09-27

    申请号：US11691467

    申请日：2007-03-26

    Applicant: Ye-Kui Wang ,  Miska Hannuksela ,  Xianglin Wang

    Inventor： Ye-Kui Wang ,  Miska Hannuksela ,  Xianglin Wang

    IPC: H04B1/66 ,  H04N7/12

    CPC classification number: H04N19/34 ,  H04N19/31 ,  H04N19/423 ,  H04N19/573 ,  H04N19/58 ,  H04N19/61 ,  H04N19/70

    Abstract: A device, an encoding method, and a decoding method enable a separate marking of base representations and enhanced representations of key access units to save memory or to allow a better scalable video coding optimization. The encoding method of a sequence of original pictures to a sequence of access units includes, after encoding of one of the access units, storing a first decoded picture of the first encoded picture and a second decoded picture of the second encoded picture for inter prediction for encoding of others of the access units; and identifying the first decoded picture and the second decoded picture to be no longer used for inter prediction. The decoding method includes decoding the first access unit, where a first decoded picture is decoded from the first picture and a second decoded picture is decoded from the second picture; marking the first and second decoded pictures as used for inter prediction; decoding the second access unit; and marking one of the first and second decoded pictures as no longer used for inter prediction.

    Abstract translation: 一种设备，编码方法和解码方法能够分别标记基本表示和密钥访问单元的增强表示以节省存储器或允许更好的可扩展视频编码优化。 原始图像序列到接入单元序列的编码方法包括：在编码一个访问单元之后，存储第一编码图像的第一解码图像和用于帧间预测的第二编码图像的第二解码图像 对其他访问单元的编码; 并且识别第一解码图像和第二解码图像不再用于帧间预测。 解码方法包括对第一存取单元进行解码，其中第一解码图像从第一图像解码，第二解码图像从第二图像解码; 标记用于帧间预测的第一和第二解码图像; 解码第二存取单元; 并且将第一和第二解码图像中的一个标记为不再用于帧间预测。

    VIDEO CODING AND DECODING
    42.
    发明申请
    VIDEO CODING AND DECODING 审中-公开
    视频编码和解码

    公开(公告)号：US20070183676A1

    公开(公告)日：2007-08-09

    申请号：US11735962

    申请日：2007-04-16

    Applicant: Miska Hannuksela ,  Ye-Kui Wang

    Inventor： Miska Hannuksela ,  Ye-Kui Wang

    IPC: G06K9/46 ,  G06K9/36

    CPC classification number: H04N19/29 ,  H04N19/17 ,  H04N19/174 ,  H04N19/23

    Abstract: A video coding and decoding method, wherein a picture is first divided into sub-pictures corresponding to one or more subjectively important picture regions and to a background region sub-picture, which remains after the other sub-pictures are removed from the picture. The sub-pictures are formed to conform to predetermined allowable groups of video coding macroblocks (MBs). The allowable groups of MBs can be, for example, of rectangular shape. The picture is then divided into slices so that each sub-picture is encoded independent of other sub-pictures except for the background region sub-picture, which may be coded using another sub-pictures. The slices of the background sub-picture are formed in a scan-order with skipping over MBs that belong to another sub-picture. The background sub-picture is only decoded if all the positions and sizes of all other sub-pictures can be reconstructed on decoding the picture.

    Abstract translation: 一种视频编码和解码方法，其中首先将图像划分为与一个或多个主观重要的图像区域对应的子图像和在从图像中移除其它子图像之后保持的背景区域子图像。 子图像形成为符合预定的允许的视频编码宏块（MB）组。 MB的允许组可以是例如矩形。 然后将图像分成片，使得每个子图像独立于除了背景区域子图像之外的其他子图像，其可以使用另一个子图像进行编码。 背景子图像的切片以扫描顺序形成，跳过属于另一子图像的MB。 只有在对图像进行解码时可以重构所有其他子图像的所有位置和大小时，才解码背景子图像。

    Error resilient mode decision in scalable video coding
    43.
    发明申请
    Error resilient mode decision in scalable video coding 审中-公开
    可伸缩视频编码中的错误弹性模式决策

    公开(公告)号：US20070160137A1

    公开(公告)日：2007-07-12

    申请号：US11651420

    申请日：2007-01-08

    Applicant: Yi Guo ,  Ye-Kui Wang ,  Houqiang Li

    Inventor： Yi Guo ,  Ye-Kui Wang ,  Houqiang Li

    IPC: H04B1/66 ,  H04N11/04

    CPC classification number: H04N19/103 ,  H04N19/147 ,  H04N19/166 ,  H04N19/176 ,  H04N19/187 ,  H04N19/19 ,  H04N19/29 ,  H04N19/34 ,  H04N19/65

    Abstract: An encoder for use in scalable video coding has a mechanism to perform macroblock mode selection for the enhancement layer pictures. The mechanism includes a distortion estimator for each macroblock that reacts to channel errors such as packet losses or errors in video segments affected by error propagation; a Lagrange multiple selector for selecting a weighting factor according to estimated or signaled channel error rate, and a mode decision module or algorithm to choose the optimal mode based on encoding parameters. The mode decision module is configured to select the coding mode based on a sum of the estimated coding distortion and the estimated coding rate multiplied by the weighting factor.

    Abstract translation: 用于可分级视频编码的编码器具有对增强层图像执行宏块模式选择的机制。 该机制包括对每个宏块进行失真估计，该宏块对错误传播影响的视频段中的分组丢失或错误等信道错误作出反应; 用于根据估计或信号通道误码率选择加权因子的拉格朗日多重选择器，以及基于编码参数选择最佳模式的模式决策模块或算法。 模式判定模块被配置为基于估计的编码失真和估计的编码率与乘以加权因子的和来选择编码模式。

    Coding of frame number in scalable video coding
    44.
    发明申请
    Coding of frame number in scalable video coding 有权

    公开(公告)号：US20060233242A1

    公开(公告)日：2006-10-19

    申请号：US11105421

    申请日：2005-04-13

    Applicant: Ye-Kui Wang ,  Miska Hannuksela

    Inventor： Ye-Kui Wang ,  Miska Hannuksela

    IPC: H04N7/12 ,  H04B1/66 ,  H04N11/02 ,  H04N11/04

    CPC classification number: H04N19/36 ,  H04N19/33 ,  H04N19/34 ,  H04N19/423 ,  H04N19/573 ,  H04N19/70

    Abstract: A method of encoding scalable video data having multiple layers where each layer in the multiple layers is associated with at least one other layer includes identifying one or more layers using a first identifier where the first identifier indicates decoding dependency, and identifying reference pictures within the identified one or more layers using a second identifier. The coding of the second identifier for pictures in a first layer is independent of pictures in a second enhancement layer. As such, for all pictures with a certain value of DependencyID, the syntax element frame_num is coded independently of other pictures with different values of DependencyID. Within all pictures with a pre-determined value of DependencyID, a default frame_num coding method is used.

    Timing of quality of experience metrics
    46.
    发明申请
    Timing of quality of experience metrics 审中-公开
    体验质量指标的时间

    公开(公告)号：US20050204052A1

    公开(公告)日：2005-09-15

    申请号：US11057118

    申请日：2005-02-11

    Applicant: Ye-Kui Wang ,  Igor Curcio ,  Emre Aksu

    Inventor： Ye-Kui Wang ,  Igor Curcio ,  Emre Aksu

    IPC: G06F15/16 ,  H04L12/56 ,  H04L29/06

    CPC classification number: H04L29/06027 ,  H04L47/10 ,  H04L47/2416 ,  H04L47/26 ,  H04L47/28 ,  H04L65/608 ,  H04L65/80

    Abstract: Quality feedback in a streaming service wherein at least one media stream (101) is streamed to a client (601) and a quality feedback value is determined (304) according to at least one quality metric is improved by determining (305) a timestamp relating to said quality feedback value according to at least one timestamp metric, wherein for each of said at least one quality metrics, a corresponding timestamp metric is defined, and wherein each of said at least one timestamp metrics is based on a relative media playback time of said at least one media stream (101), and reporting (306) said quality feedback value and said related timestamp to a server (600). Said relative media playback time is preferably derived from RTP (102) timestamps, from a NPT provided by a RTSP (109), from timestamps of a RTCP or from timestamps of a SIP.

    Abstract translation: 根据至少一个质量度量确定至少一个媒体流（101）被传送到客户端（601）并且质量反馈值（304）的质量反馈，通过确定（305）相关的时间戳 根据至少一个时间戳度量对所述质量反馈值，其中对于所述至少一个质量度量中的每一个，定义对应的时间戳量度，并且其中所述至少一个时间戳度量中的每一个基于相对媒体播放时间 至少一个媒体流（101），并将所述质量反馈值和所述相关时间戳报告（306）到服务器（600）。 所述相对媒体播放时间优选地从RTP（102）时间戳，从RTSP（109）提供的NPT，从RTCP的时间戳或SIP的时间戳导出。

    Stream switching based on gradual decoder refresh
    47.
    发明申请
    Stream switching based on gradual decoder refresh 有权
    基于逐渐解码器刷新的流切换

    公开(公告)号：US20050021814A1

    公开(公告)日：2005-01-27

    申请号：US10848966

    申请日：2004-05-19

    Applicant: Ye-Kui Wang

    Inventor： Ye-Kui Wang

    IPC: H04L29/06 ,  H04N7/24 ,  G06F15/16

    CPC classification number: H04L65/607 ,  H04L29/06 ,  H04L29/06027 ,  H04L65/4084 ,  H04L65/80 ,  H04N21/23424 ,  H04N21/44016

    Abstract: A signaling method and device for use in stream switching in which GDR random access points are used. In order to indicate the GDR switching points in the bitstreams, a Sync Sample Information Box, which is contained in a Sync Sample Box, is used to provide information of such GDR switching points. The information also includes which slice group is the isolated region and which slice group is the leftover region, if slice groups are applied in encoding. The signaling method can be used in video data transmission using Real-time Transport Protocol (RTP), and a Session Description Protocol (SDP) can be used to convey information indicative of the characteristics of the bitstreams.

    Abstract translation: 用于流切换的信令方法和装置，其中使用GDR随机接入点。 为了指示比特流中的GDR切换点，包含在同步样本盒中的同步样本信息框用于提供这种GDR切换点的信息。 如果在编码中应用了切片组，则该信息还包括哪个切片组是隔离区域，哪个切片组是剩余区域。 该信令方法可以用于使用实时传输协议（RTP）的视频数据传输，会话描述协议（SDP）可用于传送指示比特流的特征的信息。

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