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    • 4. 发明授权
    • Method and device for measuring similarity between images
    • 用于测量图像之间相似度的方法和装置
    • US07308140B2
    • 2007-12-11
    • US09822853
    • 2001-04-02
    • Hyun-doo ShinYang-Iim ChoiBangalore S. ManjunathPeng Wu
    • Hyun-doo ShinYang-Iim ChoiBangalore S. ManjunathPeng Wu
    • G06K9/62G06K9/68
    • G06T7/41
    • A method of measuring a similarity between images is provided. The method includes the steps of (a) computing a statistical dissimilarity between the images; (b) computing a perceptual dissimilarity between the images; and (c) computing a dissimilarity between the texture features of the images based on the statistical dissimilarity and the perceptual dissimilarity. When images perceptually similar to a query image are searched and retrieved according to the above measuring method, the possibility that the retrieved images are not perceptually similar to the query image is small. Accordingly, the image searching performance can be improved when searching images having texture features similar to that of a query image.
    • 提供了一种测量图像之间的相似度的方法。 该方法包括以下步骤:(a)计算图像之间的统计学不相似性; (b)计算图像之间的知觉差异; 和(c)基于统计学上的不相似性和感知不相似性来计算图像的纹理特征之间的不相似性。 当根据上述测量方法搜索和检索与查询图像感知相似的图像时,检索到的图像在听觉上与查询图像不相似的可能性较小。 因此,当搜索具有与查询图像相似的纹理特征的图像时,可以提高图像搜索性能。
    • 5. 发明授权
    • Adaptive search method in feature vector space
    • 特征向量空间中的自适应搜索方法
    • US06910030B2
    • 2005-06-21
    • US09783149
    • 2001-02-15
    • Yang-lim ChoiYoungsik HuhB. S. ManjunathPeng Wu
    • Yang-lim ChoiYoungsik HuhB. S. ManjunathPeng Wu
    • G06F17/30
    • G06F17/30017Y10S707/99932Y10S707/99933Y10S707/99943Y10S707/99945
    • An adaptive search method in feature vector space which can quickly search the feature vector space indexed based on approximation for a feature vector having features similar to a query vector according to a varying distance measurement is provided. The adaptive search method includes the steps of (a) performing a similarity measurement on a given query vector within the feature vector space, and (b) applying search conditions limited by the result of the similar measurement obtained in the step (a) and performing a changed similarity measurement on the given query vector. According to the adaptive search method, the number of candidate approximation regions is reduced during a varying distance measurement such as an on-line retrieval, which improves the search speed.
    • 提供了一种特征向量空间中的自适应搜索方法,可以快速搜索根据具有与查询向量类似的特征向量的特征向量根据近似值索引的特征向量空间,该特征向量空间根据变化的距离测量。 自适应搜索方法包括以下步骤:(a)对特征向量空间内的给定查询向量执行相似度测量,以及(b)应用由步骤(a)中获得的类似测量结果限制的搜索条件,并执行 给定查询向量改变了相似性度量。 根据自适应搜索方法,在诸如在线检索的变化距离测量期间,候选近似区域的数量减少,这提高了搜索速度。
    • 9. 发明授权
    • Integration of trace selection and trace profiling in dynamic optimizers
    • 在动态优化器中集成跟踪选择和跟踪分析
    • US08549498B2
    • 2013-10-01
    • US13215747
    • 2011-08-23
    • Hiroshige HayashizakiHiroshi InouePeng Wu
    • Hiroshige HayashizakiHiroshi InouePeng Wu
    • G06F9/45
    • G06F11/3612
    • Integrated trace selection and profiling in dynamic optimizers may include selecting a trace head based on profile of basic blocks that are executed. The basic blocks executed from the trace head may be recorded as a trace. The trace may be added to a trace nursery in non-compiled state. The trace may be interpreted and profiled until the trace matures. Under a profiling mode, path sensitive runtime information such as values, types, targets of call-sites, and exit frequencies can be collected. The trace may be moved out of the nursery to a compilation queue in response to determining that the trace has matured based on an execution count of the profiled trace.
    • 动态优化器中的集成跟踪选择和分析可能包括基于执行的基本块的轮廓选择跟踪头。 从跟踪头执行的基本块可以记录为跟踪。 踪迹可以添加到非编译状态的跟踪托儿所。 跟踪可能被解释和分析,直到跟踪成熟。 在分析模式下,可以收集路径敏感的运行时信息,如值,类型,呼叫站点目标和退出频率。 响应于确定跟踪已经基于分析跟踪的执行计数而成熟,跟踪可以移出苗圃到编译队列。