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    Bitstream Switching in Multiple Bit-Rate Video Streaming Environments
    52.
    发明申请
    Bitstream Switching in Multiple Bit-Rate Video Streaming Environments 有权
    多比特率视频流环境中的比特流切换

    公开(公告)号：US20080046939A1

    公开(公告)日：2008-02-21

    申请号：US11460217

    申请日：2006-07-26

    Applicant: Yan Lu ,  Feng Wu ,  Wen Sun ,  Shipeng Li

    Inventor： Yan Lu ,  Feng Wu ,  Wen Sun ,  Shipeng Li

    IPC: H04N7/173

    CPC classification number: H04N21/44016 ,  H04N21/23424 ,  H04N21/23439 ,  H04N21/235 ,  H04N21/2402 ,  H04N21/2662 ,  H04N21/435

    Abstract: Bitstream switching for multiple bit rate video streaming uses a first algorithm to generate multiple encoded bitstreams of a piece of video at different bit rates. A different algorithm is used to generate multiple side bitstreams of the video. Each side stream is generated at respective ones of the different bit rates. The side bitstreams comprise switching frames to switch from a first bitstream encoded with the first algorithm at a first bit rate to a second bitstream encoded with the first algorithm at a different bit rate. At non-bitstream switching points, frames from respective ones of bitstreams generated with the first algorithm are streamed for presentation. At a bitstream switching point, a switching frame from a respective side bitstream is transmitted to a decoder to transition streaming from a first of the respective ones of the bitstreams to a second of the respective ones of the bitstreams.

    Abstract translation: 用于多比特率视频流的比特流切换使用第一算法以不同比特率生成一段视频的多个编码比特流。 使用不同的算法来生成视频的多边比特流。 每个侧流以不同比特率的相应的一个生成。 侧比特流包括切换帧，以从第一比特流编码的第一比特流以第一比特率切换到以不同比特率编码的第一比特率的第二比特流。 在非比特流切换点，利用第一算法生成的来自相应比特流的帧被流传输以便呈现。 在比特流切换点，来自相应侧比特流的切换帧被发送到解码器，以将流从各个比特流中的第一个流转换到相应比特流中的第二个。

    Computation Scheduling and Allocation for Visual Communication
    53.
    发明申请
    Computation Scheduling and Allocation for Visual Communication 有权
    视觉通信的计算调度和分配

    公开(公告)号：US20080013628A1

    公开(公告)日：2008-01-17

    申请号：US11457705

    申请日：2006-07-14

    Applicant: Yan Lu ,  Feng Wu ,  Wei Pu ,  Shipeng Li

    Inventor： Yan Lu ,  Feng Wu ,  Wei Pu ,  Shipeng Li

    IPC: H04N7/12

    CPC classification number: H04N19/567 ,  H04N19/127 ,  H04N19/156 ,  H04N19/172 ,  H04N19/19 ,  H04N19/196 ,  H04N19/43 ,  H04N19/533 ,  H04N19/557

    Abstract: Computation scheduling and allocation for visual communication is described. In one aspect, multiple frames of video data are encoded by allocating for at least a subset of inter-coded frames, on frame-by-frame basis, computational resources to encode the inter-coded frame. To this end, a computational budget to encode a current inter-coded frame is estimated. The estimate is based on the actual computational costs to encode a previous inter-coded frame of video data. Next, sets of operations associated with encoding the current inter-coded frame are analyzed to determine computational resources to implement the operations. If the computational resources exceed the computational budget, complexity of the operations is reduced until the associated computational resources are less than or equal to the computational budget. At this point, the current inter-coded frame is encoded using the operations and the computational budget. This process is repeated for the remaining inter-coded frames of video data.

    Abstract translation: 描述视觉通信的计算调度和分配。 在一个方面，通过在逐帧的基础上为帧间编码帧的至少一个子集分配计算资源来编码帧间编码帧来编码多个视频数据帧。 为此，估计用于编码当前帧间编码帧的计算预算。 该估计是基于对先前的视频数据的帧间编码帧进行编码的实际计算成本。 接下来，分析与当前帧间编码帧的编码相关联的操作集合，以确定用于实现操作的计算资源。 如果计算资源超过计算预算，则减少操作的复杂度，直到相关的计算资源小于或等于计算预算。 此时，使用操作和计算预算对当前帧间编码帧进行编码。 对于视频数据的剩余帧间编码帧重复该过程。

    Bi-directional predicting method for video coding/decoding
    55.
    发明申请
    Bi-directional predicting method for video coding/decoding 有权
    视频编码/解码双向预测方法

    公开(公告)号：US20070110156A1

    公开(公告)日：2007-05-17

    申请号：US10571659

    申请日：2004-07-02

    Applicant: Xiangyang Ji ,  Wen Gao ,  Debin Zhao ,  Yan Lu ,  Siwei Ma ,  Honggang Qi

    Inventor： Xiangyang Ji ,  Wen Gao ,  Debin Zhao ,  Yan Lu ,  Siwei Ma ,  Honggang Qi

    IPC: H04N11/04 ,  H04N11/02

    CPC classification number: H04N19/577 ,  H04N19/513 ,  H04N19/58 ,  H04N19/61

    Abstract: The invention discloses a bi-directional prediction method for video coding/decoding. When bi-directional prediction coding at the coding end, firstly the given forward candidate motion vector of the current image block is obtained for every image block of the current B-frame; the backward candidate motion vector is obtained through calculation, and the candidate bi-directional prediction reference block is obtained through bi-directional prediction method; the match is computed within the given searching scope and/or the given matching threshold; finally the optimal matching block is selected to determine the final forward motion vector, and the backward motion vector and the block residual. The present invention achieves the object of bi-directional prediction by coding a single motion vector, furthermore, it will not enhance the complexity of searching for a matching block at the coding end, and may save amount of coding the motion vector and represent the motion of the objects in video more actually. The present invention realizes a new prediction coding type by combining the forward prediction coding with the backward.

    Abstract translation: 本发明公开了一种用于视频编码/解码的双向预测方法。 在编码结束的双向预测编码时，首先为当前B帧的每个图像块获得当前图像块的给定正向候选运动矢量; 通过计算获得后向候选运动矢量，通过双向预测方法获得候选双向预测参考块; 在给定的搜索范围和/或给定的匹配阈值内计算匹配; 最后选择最优匹配块来确定最终的前向运动矢量，反向运动矢量和块残差。 本发明通过对单个运动矢量进行编码来实现双向预测的目的，此外，它不会增强在编码端搜索匹配块的复杂度，并且可以节省编码运动矢量的量并表示运动 视频中的对象更实际。 本发明通过将前向预测编码与后向组合来实现新的预测编码类型。

    Process for the capacitive object detection in the case of vehicles
    60.
    发明授权
    Process for the capacitive object detection in the case of vehicles 有权
    在车辆的情况下用于电容对象检测的过程

    公开(公告)号：US06442464B2

    公开(公告)日：2002-08-27

    申请号：US09796670

    申请日：2001-03-02

    Applicant: Lutz Eisenmann ,  Yan Lu ,  Sivart Sauer ,  Christian Marschner

    Inventor： Lutz Eisenmann ,  Yan Lu ,  Sivart Sauer ,  Christian Marschner

    IPC: B60R2200

    CPC classification number: B60R21/01532 ,  B60N2/002 ,  G06K9/00362

    Abstract: In a process for capacitive object detection in a vehicle seat, capacitors arranged in the backrest and in the seat surface are influenced by an object. The capacitors are acted upon by alternating voltage and their capacitance is determined individually. From the value of each of the two capacitances, an evaluation of the object is derived by means of a value table. When the two evaluations correspond to one another (concerning the type of an object), an occupant protection system assigned to the seat is correspondingly activated or deactivated.

    Abstract translation: 在车辆座椅中的电容对象检测的过程中，布置在靠背和座椅表面中的电容器受到物体的影响。 电容器由交流电压驱动，并且它们的电容被单独确定。 根据两个电容中的每一个的值，通过值表导出对象的评估。 当两个评估相对应（关于对象的类型）时，分配给座椅的乘员保护系统相应地被激活或停用。

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