Methods and apparatus for data collection
    51.
    发明授权
    Methods and apparatus for data collection 有权
    数据收集方法和装置

    公开(公告)号:US09268776B2

    公开(公告)日:2016-02-23

    申请号:US13531887

    申请日:2012-06-25

    摘要: Systems and techniques for directing data collection. Upon an initial data collection, the uncertainty of all or of a portion or portions of the collected data is evaluated. The collected data may be associated with a region, with portions of the collected data associated with subregions. Further data collection, including changes to or refinement of collection techniques, is undertaken based on evaluations of the uncertainty. Further data collection may be undertaken only for portions of the data for which uncertainty exceeds a threshold. Uncertainty evaluation may be performed at least in part using a model. The model may be an initial hypothesis model, and the model may be optimized as further data is collected, and the optimized model may be used to guide further data collection techniques, with iterations of data collection and model optimization being carried out concurrently.

    摘要翻译: 用于指导数据收集的系统和技术。 在初始数据收集时,评估所收集数据的全部或部分或部分的不确定性。 收集的数据可以与区域相关联,其中部分收集的数据与子区域相关联。 根据对不确定性的评估,进一步收集数据,包括收集技术的改变或改进。 可以仅对不确定性超过阈值的数据的部分进行进一步的数据收集。 可以至少部分地使用模型来执行不确定性评估。 该模型可以是初始假设模型,并且可以在收集进一步数据时优化模型,并且可以使用优化模型来指导进一步的数据收集技术,同时进行数据收集和模型优化的迭代。

    Methods and apparatus for processing load balancing in distributed problem processing
    52.
    发明授权
    Methods and apparatus for processing load balancing in distributed problem processing 有权
    在分布式问题处理中处理负载均衡的方法和装置

    公开(公告)号:US09207991B2

    公开(公告)日:2015-12-08

    申请号:US13531799

    申请日:2012-06-25

    IPC分类号: G06F9/46 G06F15/173 G06F9/50

    CPC分类号: G06F9/5083

    摘要: Systems and techniques for computational load balancing. A problem space is partitioned into subspaces and the subspaces are assigned to processing nodes. The load of nodes associated with outer subspaces is compared with the load of nodes associated with inner subspaces, and partition boundary adjustments are made based on the relative loads of outer versus inner subspaces.

    摘要翻译: 用于计算负载平衡的系统和技术。 问题空间被划分为子空间,子空间被分配给处理节点。 将与外部子空间相关联的节点的负载与与内部子空间相关联的节点的负载进行比较,并且基于外部与内部子空间的相对负载进行分区边界调整。

    Method and apparatus of temporal filtering for side information interpolation and extrapolation in Wyner-Ziv video compression systems
    53.
    发明授权
    Method and apparatus of temporal filtering for side information interpolation and extrapolation in Wyner-Ziv video compression systems 失效
    Wyner-Ziv视频压缩系统中边信息插值和外插时域滤波的方法和装置

    公开(公告)号:US08494053B2

    公开(公告)日:2013-07-23

    申请号:US11619567

    申请日:2007-01-03

    申请人: Dake He Ligang Lu

    发明人: Dake He Ligang Lu

    IPC分类号: H04N11/02

    摘要: A method (and system) for video coding includes receiving a first reference frame having a first pixel value at a first pixel position, a second reference frame having a second pixel value at a second pixel position, and a third reference frame having a third pixel value at a third pixel position, determining a first motion vector between the first pixel position and the second pixel position, determining a second motion vector between the second pixel position and the third pixel position, and determining a fourth pixel value for a fourth frame based upon a linear or nonlinear combination of the first pixel value, the second pixel value, and the third pixel value.

    摘要翻译: 一种用于视频编码的方法(和系统)包括:在第一像素位置处接收具有第一像素值的第一参考帧,在第二像素位置处具有第二像素值的第二参考帧,以及具有第三像素的第三参考帧 确定第一像素位置和第二像素位置之间的第一运动矢量,确定第二像素位置与第三像素位置之间的第二运动矢量,以及确定第四像素位置的第四像素值 在第一像素值,第二像素值和第三像素值的线性或非线性组合之间。

    RTM SEISMIC IMAGING USING COMBINED SHOT DATA
    54.
    发明申请
    RTM SEISMIC IMAGING USING COMBINED SHOT DATA 有权
    使用组合拍摄数据的RTM地震成像

    公开(公告)号:US20120316785A1

    公开(公告)日:2012-12-13

    申请号:US13363999

    申请日:2012-02-01

    IPC分类号: G06F19/00

    CPC分类号: G01V1/303

    摘要: A system, method and computer program product for seismic imaging implements a seismic imaging algorithm utilizing Reverse Time Migration technique requiring large communication bandwidth and low latency to convert a parallel problem into one solved using massive domain partitioning. Several aspects of the imaging problem are addressed, including very regular and local communication patterns, balanced compute and communication requirements, scratch data handling and multiple-pass approaches. The partitioning of the velocity model into processing blocks allows each sub-problem to fit in a local cache, increasing locality and bandwidth and reducing latency. The RTM seismic data processing utilizes data that includes combined shot data, i.e., shot data selected from amongst a plurality of shots that are combined at like spatial points of the volume.

    摘要翻译: 用于地震成像的系统,方法和计算机程序产品使用需要大的通信带宽和低等待时间的逆时间迁移技术来实现地震成像算法,以将并行问题转换为使用大量域分割解决的问题。 解决了成像问题的几个方面,包括非常规则和本地通信模式,平衡的计算和通信要求,暂存数据处理和多通路方法。 将速度模型划分为处理块允许每个子问题适合本地缓存,增加局部性和带宽并减少延迟。 RTM地震数据处理利用包括组合拍摄数据的数据,即从在体积相似的空间点上组合的多个拍摄中选择的拍摄数据。

    METHOD AND SYSTEM FOR CODING MODE SELECTION IN VIDEO COMPRESSION SYSTEMS
    55.
    发明申请
    METHOD AND SYSTEM FOR CODING MODE SELECTION IN VIDEO COMPRESSION SYSTEMS 有权
    在视频压缩系统中对模式选择进行编码的方法和系统

    公开(公告)号:US20120281750A1

    公开(公告)日:2012-11-08

    申请号:US13545414

    申请日:2012-07-10

    IPC分类号: H04N7/26 H04N7/32

    摘要: A method and system are disclosed for selecting a mode to encode video data. The method comprises the steps of (a) transforming a source video frame into a set of coefficients, (b) partitioning said set of coefficients into a plurality of subsets of the coefficients on the basis of probability statistics corresponding to a plurality of encoding modes, wherein each of said subsets is identified for encoding by one of the plurality of encoding modes. The method comprises the further steps of (c) for each of the plurality of subsets of coefficients, computing defined parameters of an associated probability distribution for said subset, and (d) repeating steps (b) and (c) until a predetermined termination condition is satisfied. When this predetermined termination condition is satisfied, the subsets of coefficients, as they exist at that time, are output to a video encoder, which preferably is a Wyner-Ziv encoder.

    摘要翻译: 公开了一种用于选择对视频数据进行编码的模式的方法和系统。 该方法包括以下步骤:(a)将源视频帧变换成一组系数,(b)基于对应于多个编码模式的概率统计,将所述系数集合划分成系数的多个子集, 其中所述子集中的每一个被识别用于通过所述多个编码模式之一进行编码。 该方法还包括以下步骤:(c)针对所述多个系数子集中的每一个,计算所述子集的关联概率分布的定义参数,以及(d)重复步骤(b)和(c)直到预定终止条件 满意 当满足该预定终止条件时,如同在那时存在的系数子集被输出到视频编码器,其优选地是Wyner-Ziv编码器。

    Method and system for coding mode selection in video compression systems
    56.
    发明授权
    Method and system for coding mode selection in video compression systems 有权
    视频压缩系统中编码模式选择的方法和系统

    公开(公告)号:US08295356B2

    公开(公告)日:2012-10-23

    申请号:US12044027

    申请日:2008-03-07

    IPC分类号: H04N11/02

    摘要: A method and system are disclosed for selecting a mode to encode video data. The method comprises the steps of (a) transforming a source video frame into a set of coefficients, (b) partitioning said set of coefficients into a plurality of subsets of the coefficients on the basis of probability statistics corresponding to a plurality of encoding modes, wherein each of said subsets is identified for encoding by one of the plurality of encoding modes. The method comprises the further steps of (c) for each of the plurality of subsets of coefficients, computing defined parameters of an associated probability distribution for said subset, and (d) repeating steps (b) and (c) until a predetermined termination condition is satisfied. When this predetermined termination condition is satisfied, the subsets of coefficients, as they exist at that time, are output to a video encoder, which preferably is a Wyner-Ziv encoder.

    摘要翻译: 公开了一种用于选择对视频数据进行编码的模式的方法和系统。 该方法包括以下步骤:(a)将源视频帧变换成一组系数,(b)基于对应于多个编码模式的概率统计,将所述系数集合划分成系数的多个子集, 其中所述子集中的每一个被识别用于通过所述多个编码模式之一进行编码。 该方法还包括以下步骤:(c)针对所述多个系数子集中的每一个,计算所述子集的关联概率分布的定义参数,以及(d)重复步骤(b)和(c)直到预定终止条件 满意 当满足该预定终止条件时,如同在那时存在的系数子集被输出到视频编码器,其优选地是Wyner-Ziv编码器。

    Method and system for signal prediction in predictive coding
    57.
    发明授权
    Method and system for signal prediction in predictive coding 有权
    预测编码中信号预测的方法和系统

    公开(公告)号:US08259804B2

    公开(公告)日:2012-09-04

    申请号:US11619560

    申请日:2007-01-03

    申请人: Ligang Lu

    发明人: Ligang Lu

    IPC分类号: H04N7/36

    摘要: A method (and system) for coding a signal includes comparing a first prediction which is based upon a previously reconstructed signal to an actual signal to determine a first prediction error, comparing a second prediction which is based upon temporal filtering to the actual signal to determine a second prediction error, and selecting one of the first prediction error and the second prediction error.

    摘要翻译: 用于编码信号的方法(和系统)包括将基于先前重建的信号的第一预测与实际信号进行比较,以确定第一预测误差,将基于时间滤波的第二预测与实际信号进行比较,以确定 第二预测误差,并且选择第一预测误差和第二预测误差中的一个。

    Method and Apparatus for Encoding Surveillance Video
    58.
    发明申请
    Method and Apparatus for Encoding Surveillance Video 有权
    编码监控视频的方法和装置

    公开(公告)号:US20110206122A1

    公开(公告)日:2011-08-25

    申请号:US12712717

    申请日:2010-02-25

    IPC分类号: H04N7/32

    摘要: Methods and apparatus are provided for encoding video, such as surveillance video. A video frame is encoded by evaluating a level of activity in video frame relative to one or more neighboring frames; encoding the video frame using an inter-coding technique if the evaluation satisfies one or more predefined inter-coding criteria, wherein said inter-coding technique is applied to said video frame without a Group of Picture structure having a maximum number of consecutive inter-coded frames; and encoding the video frame using an intra-coding technique if the evaluation satisfies one or more predefined intra-coding criteria. The evaluating step may comprise, for example, determining whether differences between the video frame and the one or more neighboring frames exceed a predefined threshold.

    摘要翻译: 提供了编码视频的方法和装置,如监视视频。 通过评估视频帧中相对于一个或多个相邻帧的活动水平来编码视频帧; 如果评估满足一个或多个预定义的帧间编码标准,则使用帧间编码技术对视频帧进行编码,其中所述帧间编码技术被应用于所述视频帧,而不具有最大数量的连续帧间编码的图像组 框架 以及如果所述评估满足一个或多个预定义的内部编码标准,则使用帧内编码技术来编码所述视频帧。 评估步骤可以包括例如确定视频帧与一个或多个相邻帧之间的差异是否超过预定阈值。

    Method and System for Secure Collaboration Using Slepian-Wolf Codes
    59.
    发明申请
    Method and System for Secure Collaboration Using Slepian-Wolf Codes 失效
    使用Slepian-Wolf代码进行安全协作的方法和系统

    公开(公告)号:US20100095116A1

    公开(公告)日:2010-04-15

    申请号:US12250115

    申请日:2008-10-13

    IPC分类号: H04L9/32 G06F17/14

    摘要: A method and system provide for secure sharing of arbitrary data between users with limited mutual trust. A user can encode its information by using a Slepian-Wolf code at a rate which enables a second user to correctly decode only if the side-information it has satisfies a conditional entropy constraint. The key advantages are as follows. Firstly, it is very flexible, in that it enables secure sharing for general data including multimedia data. Secondly, by appropriate Slepian-Wolf code selection, it enables compression in conjunction with security. Thirdly, it can be used for the case where the data model is imperfectly known and trust is to be built up incrementally.

    摘要翻译: 方法和系统提供在有限的相互信任的用户之间安全地共享任意数据。 用户可以通过使用Slepian-Wolf代码来以其速率对其信息进行编码,这使得仅当第二用户的边信息满足条件熵约束时才允许第二用户正确解码。 主要优点如下。 首先,它是非常灵活的,因为它可以实现包括多媒体数据在内的一般数据的安全共享。 其次,通过适当的Slepian-Wolf代码选择,可以与安全性一起进行压缩。 第三,它可以用于数据模型不完全知道的情况,信任将逐步建立。

    METHOD AND SYSTEM FOR CODING MODE SELECTION IN VIDEO COMPRESSION SYSTEMS
    60.
    发明申请
    METHOD AND SYSTEM FOR CODING MODE SELECTION IN VIDEO COMPRESSION SYSTEMS 有权
    在视频压缩系统中对模式选择进行编码的方法和系统

    公开(公告)号:US20090225830A1

    公开(公告)日:2009-09-10

    申请号:US12044027

    申请日:2008-03-07

    IPC分类号: H04N7/24

    摘要: A method and system are disclosed for selecting a mode to encode video data. The method comprises the steps of (a) transforming a source video frame into a set of coefficients, (b) partitioning said set of coefficients into a plurality of subsets of the coefficients on the basis of probability statistics corresponding to a plurality of encoding modes, wherein each of said subsets is identified for encoding by one of the plurality of encoding modes. The method comprises the further steps of (c) for each of the plurality of subsets of coefficients, computing defined parameters of an associated probability distribution for said subset, and (d) repeating steps (b) and (c) until a predetermined termination condition is satisfied. When this predetermined termination condition is satisfied, the subsets of coefficients, as they exist at that time, are output to a video encoder, which preferably is a Wyner-Ziv encoder.

    摘要翻译: 公开了一种用于选择对视频数据进行编码的模式的方法和系统。 该方法包括以下步骤:(a)将源视频帧变换成一组系数,(b)基于对应于多个编码模式的概率统计,将所述系数集合划分成系数的多个子集, 其中所述子集中的每一个被识别用于通过所述多个编码模式之一进行编码。 该方法还包括以下步骤:(c)针对所述多个系数子集中的每一个,计算所述子集的关联概率分布的定义参数,以及(d)重复步骤(b)和(c)直到预定终止条件 满意 当满足该预定终止条件时,如同在那时存在的系数子集被输出到视频编码器,其优选地是Wyner-Ziv编码器。