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    • 3. 发明授权
    • Pulse analysis using ordinal value filtering
    • 使用序数值滤波的脉冲分析
    • US5917733A
    • 1999-06-29
    • US492031
    • 1995-06-30
    • James Andrew Bangham
    • James Andrew Bangham
    • H04N5/21G06T5/20H03H17/00H03H17/02H03M7/46H04N1/409H04N7/26G06F17/10
    • H03H17/0263
    • An image and pulse analysis system and method including a datasieve comprising a succession of ordinal filtering means receiving at least a selected part of a signal conglomerate and filtering the at least a selected part of the signal conglomerate to produce a bandpass filter output, the ordinal filtering means having window lengths increasing from N (less than M) up to M, whereby an input signal to each successive filtering means is formed from the output of the previous filtering means; selection means for selecting a predetermined subset of bandpass filter outputs from outputs of the succession of filtering means; and arithmetic means for adding together the signals of the subset to produce an output signal containing only wanted signals determined by the selection means; data storage means for storing data relating to a sought-for-feature or object which may exist in a field from which data is derived for presenting to the datasieve; comparison means for matching or comparing the stored data with the output signal of the datasieve; and selection means to select from the input signal only data having a high degree of match to the data in the data storage means.
    • PCT No.PCT / GB94 / 00080 Sec。 371日期:1995年6月30日 102(e)1995年6月30日PCT PCT 1994年1月14日PCT公布。 第WO94 / 16499号公报 日期1994年7月21日一种图像和脉冲分析系统和方法,包括包括一系列序数滤波的数据解码装置,其接收至少一个信号集合的选定部分,并且过滤该信号集合的至少一部分以产生带通滤波器 输出,具有窗口长度从N(小于M)增加到M的顺序滤波装置,由此从先前的滤波装置的输出形成到每个连续滤波装置的输入信号; 选择装置,用于从连续的滤波装置的输出中选择预定的带通滤波器输出子集; 以及算术装置,用于将所述子集的信号相加,以产生仅包含由选择装置确定的有用信号的输出信号; 数据存储装置,用于存储可能存在于从其导出数据以呈现给数据库的领域中的寻求特征或对象的数据; 用于将所存储的数据与所述数据的输出信号进行匹配或比较的比较装置; 以及选择装置,仅从输入信号中选择与数据存储装置中的数据具有高度匹配度的数据。
    • 5. 发明授权
    • Data processing method and apparatus
    • 数据处理方法和装置
    • US6081617A
    • 2000-06-27
    • US981599
    • 1998-03-23
    • James Andrew BanghamNigel Lawrence BraggRobert William Young
    • James Andrew BanghamNigel Lawrence BraggRobert William Young
    • G06T5/00G06K9/34G06K9/46G06T7/60
    • G06T5/20G06T2207/10024G06T2207/20016
    • In a data processing method and apparatus, an image signal representative of features in a space of two or more dimensions is progressively filtered at monotonically increasing filtering scales, the signal being input to the first filtering scale, and the input to the or each subsequent filtering scale is the output signal from the previous scale. Each input has a number of data samples each of which represents a respective region of the space, and at each filtering scale those samples are sorted into connected-sets, each of which contains a plurality of substantially equal value to data samples or a respective individual data sample not in other sets. The process then selects those connected-sets which contain data samples having values which are local maxima or local minima and which represent a composite region of a size related in a predetermined way to the current filtering scale. Each selected set is then effectively merged with the adjacent connected-set which contains data samples of a value closest to that of the sample(s) in the selected connected-set. This is achieved by changing the latter's value to that of the samples in the adjacent connected set. The output signal for the filtering method is derived from the output of at least one of the filtering scales. In at least one of those scales, both connected-sets having local maxima and connected-sets having local minima are selected, thereby increasing the tolerance of the method to noise.
    • PCT No.PCT / GB96 / 01492 Sec。 371日期:1998年3月23日 102(e)1998年3月23日PCT PCT 1996年6月19日PCT公布。 出版物WO97 / 01152 日期1997年1月9日在数据处理方法和装置中,代表两维或更多维的空间中的特征的图像信号以单调递增的滤波标度逐渐过滤,该信号被输入到第一滤波标度,并且输入到 该或每个后续滤波标度是来自先前标度的输出信号。 每个输入具有多个数据样本,每个数据样本表示空间的相应区域,并且在每个滤波标度下,这些采样被分类成连接组,每个连接组包含与数据样本或相应个体的多个基本相等的值 数据样本不在其他集合。 然后,该过程选择包含具有局部最大值或局部最小值的数据样本的那些连接集,并且其表示以预定方式与当前滤波标度相关联的大小的复合区域。 然后,每个所选择的集合被有效地与包含在所选择的连接集中的样本的值的最接近的数据样本的相邻连接集合合并。 这是通过将后者的值改为相邻连接集中的样本的值来实现的。 用于滤波方法的输出信号从至少一个滤波标度的输出导出。 在这些尺度中的至少一个尺度中,选择具有局部最大值的两个连接组和具有局部最小值的连接组,从而增加该方法对噪声的容限。