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    • 7. 发明申请
    • MANAGEMENT OF STORAGE RESOURCE CAPACITY
    • 存储资源管理能力
    • WO2007071557A2
    • 2007-06-28
    • PCT/EP2006/069343
    • 2006-12-05
    • INTERNATIONAL BUSINESS MACHINES CORPORATIONIBM UNITED KINGDOM LIMITEDCHEN, ZhifengGONZALES, CesarIYER, Balakrishna, RaghavendraPOFF, DanROBINSON, John, Timothy
    • CHEN, ZhifengGONZALES, CesarIYER, Balakrishna, RaghavendraPOFF, DanROBINSON, John, Timothy
    • G06F3/06
    • G06F3/0644G06F3/0608G06F3/0674
    • A method for increasing virtual storage capacity in on-demand storage systems utilizes data compression to selectively compress data stored in a storage resource to reduce the utilization of physical storage space whenever such physical resources have been over committed and the demand for physical storage exceeds its availability. In one exemplary embodiment, the utilization of the capacity of a shared storage resource is monitored and data is selected for compression based on the utilization. The compression of the selected data is triggered in response to the monitoring results. In addition, policies and rules are defined that determine which data is selected for compression. For example, the selection of data may be based on one or more of the following: a degree of utilization of said capacity of said shared storage resource, a volume size of said data, an indicator of compressibility of said data, a frequency of use of said data, a manual selection of said data, and a predefined priority of said data. The disclosed methods improve the operation of virtual allocation by further enhancing the availability of physical space through data compression. Virtual allocation and block-based data compression techniques are utilized to improve storage efficiency with a minimal risk to system availability and reliability and with a minimal impact to access time and latency.
    • 在按需存储系统中增加虚拟存储容量的方法利用数据压缩来选择性地压缩存储在存储资源中的数据,以减少物理存储空间的利用,只要这些物理资源已经过度承诺并且对物理存储的需求超过其可用性 。 在一个示例性实施例中,监视共享存储资源的容量的利用,并且基于利用率选择数据进行压缩。 响应于监视结果触发所选数据的压缩。 另外,定义了决定哪些数据被选择用于压缩的策略和规则。 例如,数据的选择可以基于以下中的一个或多个:所述共享存储资源的所述容量的利用程度,所述数据的卷大小,所述数据的可压缩性的指标,使用频率 所述数据的手动选择,以及所述数据的预定优先级。 所公开的方法通过进一步增强通过数据压缩的物理空间的可用性来改进虚拟分配的操作。 利用虚拟分配和基于块的数据压缩技术来提高存储效率,同时对系统可用性和可靠性的风险最小,对访问时间和延迟的影响最小。
    • 10. 发明申请
    • SYSTEMS AND METHODS FOR ADAPTIVE VIDEO CODING
    • 用于自适应视频编码的系统和方法
    • WO2012058394A1
    • 2012-05-03
    • PCT/US2011/058027
    • 2011-10-27
    • VID SCALE, INC.DOKEN, SerhadCHEN, ZhifengDONG, JieYE, Yan
    • DOKEN, SerhadCHEN, ZhifengDONG, JieYE, Yan
    • H04N7/26H04N7/30H04N7/46
    • H04N19/59H04N19/117H04N19/146H04N19/147H04N19/172H04N19/189H04N19/196H04N19/587H04N19/60H04N19/85
    • Systems and methods are described for determining an optimised sampling ratio for coding video data that reduces overall distortion introduced by the coding process. It seeks to balance the information loss introduced during downsampling and the information loss introduced during coding. The sampling ratio is generally determined by reducing, or in some cases minimizing, the overall error introduced through the downsampling process and the coding process, and may be adaptive based on the content of the video data being processed and a target bit rate. Computation power can be saved by coding a downsampled video. The process derives a plurality of downsampling ratios, and selects a downsampling ratio that reduces the total amount of distortion introduced during the down - sampling and coding stages. The down - sampling ratio may be selected given the available data transmission capacity, input video signal statistics, and/or other operational parameters, and may optimally reduce the overall distortion.
    • 描述了用于确定用于编码视频数据的优化采样率的系统和方法,其减少由编码过程引入的整体失真。 它寻求平衡在下采样期间引入的信息丢失和编码期间引入的信息丢失。 采样率通常通过减小或在一些情况下最小化通过下采样处理和编码处理引入的总体误差来确定,并且可以基于正在处理的视频数据的内容和目标比特率来自适应。 可以通过对下采样视频进行编码来节省计算功率。 该过程导出多个下采样比,并且选择降低在下采样和编码阶段期间引入的失真总量的下采样比。 给定可用数据传输容量,输入视频信号统计和/或其他操作参数可以选择下采样比,并且可以最佳地降低整体失真。