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20 条记录 (耗时 0.025 秒)

    Method and system for minimizing client perceived latency through effective use of memory in video-on-demand clusters
    12.
    发明申请
    Method and system for minimizing client perceived latency through effective use of memory in video-on-demand clusters 审中-公开
    通过在视频点播集群中有效使用内存来最小化客户端感知延迟的方法和系统

    公开(公告)号：US20070239882A1

    公开(公告)日：2007-10-11

    申请号：US11400363

    申请日：2006-04-10

    申请人： Junwen Lai ,  Nathan Lee ,  Krishna Ratakonda ,  Deepak Turaga

    发明人： Junwen Lai ,  Nathan Lee ,  Krishna Ratakonda ,  Deepak Turaga

    IPC分类号： G06F15/16

    CPC分类号： H04L67/1008 ,  H04L65/103 ,  H04L65/4084 ,  H04L65/605 ,  H04L65/80 ,  H04L67/1002 ,  H04L67/2842

    摘要： A method (and system) of transferring data of multimedia objects from servers to clients using memory in video-on-demand clusters, includes dividing multimedia objects into segments and independently serving and caching the segments on a plurality of servers, retrieving the segments from the servers, directing the client to the server that is responsible for serving the at least one of the segments using a redirection algorithm, and predicting a likely sequence of segments that will be requested by the client and prefetching data from a next segment in the likely sequence of segments and loading the next segment into memory within one of the plurality of servers.

    摘要翻译： 一种利用视频点播群集中的存储器将多媒体对象的数据从服务器传送到客户端的方法（和系统），包括将多媒体对象划分成多个段，并独立地在多个服务器上服务和缓存段，从 服务器，使用重定向算法将客户端引导到负责服务该段至少一个段的服务器，以及预测客户端请求的段的可能序列，并从可能序列中的下一个段预取数据 并将下一段加载到多个服务器之一内的存储器中。

    Resource adaptive spectrum estimation of streaming data
    13.
    发明申请
    Resource adaptive spectrum estimation of streaming data 有权
    流数据资源自适应频谱估计

    公开(公告)号：US20070223598A1

    公开(公告)日：2007-09-27

    申请号：US11389344

    申请日：2006-03-24

    申请人： Deepak Turaga ,  Michail Vlachos ,  Philip Yu

    发明人： Deepak Turaga ,  Michail Vlachos ,  Philip Yu

    IPC分类号： H04L27/00

    CPC分类号： G06F17/141

    摘要： Streaming environments typically dictate incomplete or approximate algorithm execution, in order to cope with sudden surges in the data rate. Such limitations are even more accentuated in mobile environments (such as sensor networks) where computational and memory resources are typically limited. Introduced herein is a novel “resource adaptive” algorithm for spectrum and periodicity estimation on a continuous stream of data. The formulation is based on the derivation of a closed-form incremental computation of the spectrum, augmented by an intelligent load-shedding scheme that can adapt to available CPU resources. Experimentation indicates that the proposed technique can be a viable and resource efficient solution for real-time spectrum estimation.

    摘要翻译： 流环境通常会指示不完整或近似算法执行，以应对数据速率的突然增加。 在计算和存储资源通常受限制的移动环境（如传感器网络）中，这种限制更加突出。 这里介绍的是一种用于连续数据流的频谱和周期估计的新型“资源自适应”算法。 该公式基于频谱的闭合增量计算的推导，通过可以适应可用CPU资源的智能加载开放方案来增强。 实验表明，提出的技术可以成为实时频谱估计的可行且资源有效的解决方案。

    Morphological significance map coding using joint spatio-temporal prediction for 3-d overcomplete wavelet video coding framework
    14.
    发明申请
    Morphological significance map coding using joint spatio-temporal prediction for 3-d overcomplete wavelet video coding framework 审中-公开
    使用联合时空预测三维不完整小波视频编码框架的形态意义图编码

    公开(公告)号：US20070031052A1

    公开(公告)日：2007-02-08

    申请号：US10573550

    申请日：2004-09-24

    申请人： Deepak Turaga ,  Mihaela Van Der Schaar

    发明人： Deepak Turaga ,  Mihaela Van Der Schaar

    IPC分类号： G06K9/46 ,  G06K9/36

    CPC分类号： H04N19/615 ,  H04N19/105 ,  H04N19/13 ,  H04N19/147 ,  H04N19/61 ,  H04N19/63 ,  H04N19/647

    摘要： A system and method is provided for digitally encoding video signals within an overcomplete wavelet video coder. A video coding algorithm unit locates significant wavelet coefficients in a first video frame and temporally predicts location information for significant wavelet coefficients in a second video frame using motion information. The video coding algorithm unit is also capable of receiving and using spatial prediction information from spatial parents of the second video frame. The invention combines temporal prediction with spatial prediction to obtain a joint spatio-temporal prediction. The invention also establishes an order for encoding clusters of significant wavelet coefficients. The invention increases coding efficiency and provides an increased quality of decoded video.

    摘要翻译： 提供了一种用于在不完整的小波视频编码器内对视频信号进行数字编码的系统和方法。 视频编码算法单元在第一视频帧中定位有效的小波系数，并且使用运动信息在时间上预测第二视频帧中的有效小波系数的位置信息。 视频编码算法单元还能够从第二视频帧的空间父节点接收和使用空间预测信息。 本发明将时间预测与空间预测相结合以获得联合时空预测。 本发明还建立了对有重要小波系数的簇进行编码的顺序。 本发明提高了编码效率，提供了解码视频的提高质量。

    3-D morphological operations with adaptive structuring elements for clustering of significant coefficients within an overcomplete wavelet video coding framework
    17.
    发明申请
    3-D morphological operations with adaptive structuring elements for clustering of significant coefficients within an overcomplete wavelet video coding framework 审中-公开
    具有自适应结构元素的3-D形态学运算，用于在一个不完整的小波视频编码框架内对重要系数进行聚类

    公开(公告)号：US20070110162A1

    公开(公告)日：2007-05-17

    申请号：US10573549

    申请日：2004-09-24

    申请人： Deepak Turaga ,  Mihaela Van Der Schaar

    发明人： Deepak Turaga ,  Mihaela Van Der Schaar

    IPC分类号： H04B1/66 ,  H04N7/12

    CPC分类号： H04N19/615 ,  H04N19/13 ,  H04N19/61 ,  H04N19/63 ,  H04N19/647

    摘要： A system and method is provided for digitally encoding video signals within an overcomplete wavelet video coder. Three dimensional morphological operations are used to identify clusters of significant wavelet coefficients. A video coding algorithm unit 365 locates significant wavelet coefficients across space and time. The video coding algorithm unit [365] also uses motion information to locate significant wavelet coefficients across space and time in a direction of motion. The lengths of a three dimensional structuring element [500] may be adaptively varied depending upon characteristics of the underlying video data. The invention increases coding efficiency and provides an increased quality of decoded video.

    摘要翻译： 提供了一种用于在不完整的小波视频编码器内对视频信号进行数字编码的系统和方法。 三维形态学运算用于识别重要小波系数的簇。 视频编码算法单元365定位跨越空间和时间的有效小波系数。 视频编码算法单元[365]还使用运动信息来在运动方向上跨越空间和时间来定位重要的小波系数。 根据底层视频数据的特性，三维结构元素[500]的长度可以自适应地变化。 本发明提高了编码效率，提供了解码视频的提高质量。

    Lifting-based implementations of orthonormal spatio-temporal transformations
    20.
    发明申请
    Lifting-based implementations of orthonormal spatio-temporal transformations 失效
    正交时空变换的基于提升的实现

    公开(公告)号：US20050117638A1

    公开(公告)日：2005-06-02

    申请号：US10971896

    申请日：2004-10-22

    申请人： Deepak Turaga ,  Rohit Puri ,  Ali Tabatabai

    发明人： Deepak Turaga ,  Rohit Puri ,  Ali Tabatabai

    IPC分类号： H04B1/66 ,  H04N20060101

    CPC分类号： H04N19/615 ,  H04N19/13 ,  H04N19/182 ,  H04N19/61 ,  H04N19/63

    摘要： A method and apparatus for encoding video frames is described. In one embodiment, an encoding method includes jointly transforming a set of pixels into high-pass data using an orthonormal transform. The set of pixels includes at least one reference pixel and predicted pixels. The method further includes generating low-pass data using the reference pixel and the high-pass data.

    摘要翻译： 描述用于编码视频帧的方法和装置。 在一个实施例中，编码方法包括使用正交变换将一组像素联合变换为高通数据。 像素集合包括至少一个参考像素和预测像素。 该方法还包括使用参考像素和高通数据生成低通数据。