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    • 51. 发明申请
    • COLLECTIVE MEDIA ANNOTATION USING UNDIRECTED RANDOM FIELD MODELS
    • 使用接收的随机场模型的集合媒体注释
    • US20080112625A1
    • 2008-05-15
    • US11558826
    • 2006-11-10
    • Matthew L. Cooper
    • Matthew L. Cooper
    • G06K9/62
    • G06K9/6297
    • In an embodiment, the present invention relates to a method for semantic analysis of digital multimedia. In an embodiment of the invention, low level features are extracted representative of one or more concepts. A discriminative classifier is trained using these low level features. A collective annotation model is built based on the discriminative classifiers. In various embodiments of the invention, the frame work is totally generic and can be applied with any number of low-level features or discriminative classifiers. Further, the analysis makes no domain specific assumptions, and can be applied to activity analysis or other scenarios without modification. The framework admits the inclusion of a broad class of potential functions, hence enabling multi-modal analysis and the fusion of heterogeneous information sources.
    • 在一个实施例中,本发明涉及数字多媒体的语义分析方法。 在本发明的实施例中,提取代表一个或多个概念的低级特征。 使用这些低级特征来训练鉴别分类器。 基于辨别分类器构建了集体注释模型。 在本发明的各种实施例中,帧功能是完全通用的,并且可以应用任何数量的低级特征或辨别分类器。 此外,该分析没有域特定的假设,并且可以不经修改地应用于活动分析或其他场景。 该框架承认包含广泛的潜在功能,从而实现多模式分析和异构信息源的融合。
    • 52. 发明申请
    • Abnormal behavior detection apparatus
    • 异常行为检测装置
    • US20070260435A1
    • 2007-11-08
    • US11822457
    • 2007-07-06
    • Yuko MatsunagaKenji Yamanishi
    • Yuko MatsunagaKenji Yamanishi
    • G06F17/10
    • G06F17/18G06K9/6297
    • Supplied with a string of vector data as input data, a probabilistic distribution estimation apparatus estimates, by using a stochastic model having hidden variables, a probabilistic distribution in which each data occurs by successively reading the train of vector data. Specifically, the probabilistic distribution estimation apparatus reads values of parameters of the stochastic model having the hidden variables for a value of the input data, calculates, by using the stochastic model, a certainty in which the input data occurs, renews the parameters in response to new read data with past data forgotten, and produce several parameter's values. By using the parameter's values received from the probabilistic distribution estimation apparatus, an abnormality detection unit calculates an information amount of data as an abnormal behavior degree to produce the abnormal behavior degree.
    • 提供一串向量数据作为输入数据,概率分布估计装置通过使用具有隐藏变量的随机模型来估计通过连续读取向量数据序列而发生每个数据的概率分布。 具体地,概率分布估计装置读取具有用于输入数据的值的隐藏变量的随机模型的参数的值,通过使用随机模型计算输入数据发生的确定性,响应于 新的读取数据与过去的数据被遗忘,并产生几个参数的值。 通过使用从概率分布估计装置接收的参数值,异常检测单元计算作为异常行为程度的数据的信息量,以产生异常行为程度。
    • 53. 发明申请
    • Apparatus and program for detecting abnormal behavior
    • 用于检测异常行为的装置和程序
    • US20070260434A1
    • 2007-11-08
    • US11822455
    • 2007-07-06
    • Yuko MatsunagaKenji Yamanishi
    • Yuko MatsunagaKenji Yamanishi
    • G06F17/10
    • G06F17/18G06K9/6297
    • Supplied with a string of vector data as input data, a probabilistic distribution estimation apparatus estimates, by using a stochastic model having hidden variables, a probabilistic distribution in which each data occurs by successively reading the train of vector data. Specifically, the probabilistic distribution estimation apparatus reads values of parameters of the stochastic model having the hidden variables for a value of the input data, calculates, by using the stochastic model, a certainty in which the input data occurs, renews the parameters in response to new read data with past data forgotten, and produce several parameter's values. By using the parameter's values received from the probabilistic distribution estimation apparatus, an abnormality detection unit calculates an information amount of data as an abnormal behavior degree to produce the abnormal behavior degree.
    • 提供一串向量数据作为输入数据,概率分布估计装置通过使用具有隐藏变量的随机模型来估计通过连续读取向量数据序列而发生每个数据的概率分布。 具体地,概率分布估计装置读取具有用于输入数据的值的隐藏变量的随机模型的参数的值,通过使用随机模型计算输入数据发生的确定性,响应于 新的读取数据与过去的数据被遗忘,并产生几个参数的值。 通过使用从概率分布估计装置接收的参数值,异常检测单元计算作为异常行为程度的数据的信息量,以产生异常行为程度。
    • 56. 发明申请
    • Adaptation of exponential models
    • 指数模型的适应
    • US20060018541A1
    • 2006-01-26
    • US10977871
    • 2004-10-29
    • Ciprian ChelbaAlejandro Acero
    • Ciprian ChelbaAlejandro Acero
    • G06K9/00
    • G06F17/273G06K9/6297
    • A method and apparatus are provided for adapting an exponential probability model. In a first stage, a general-purpose background model is built from background data by determining a set of model parameters for the probability model based on a set of background data. The background model parameters are then used to define a prior model for the parameters of an adapted probability model that is adapted and more specific to an adaptation data set of interest. The adaptation data set is generally of much smaller size than the background data set. A second set of model parameters are then determined for the adapted probability model based on the set of adaptation data and the prior model.
    • 提供了一种适应指数概率模型的方法和装置。 在第一阶段,通过基于一组背景数据确定概率模型的一组模型参数,从背景数据构建通用背景模型。 背景模型参数然后用于定义适应性概率模型的参数的先验模型,其适应并且更具体于感兴趣的自适应数据集。 自适应数据集通常比背景数据集小得多的大小。 然后,基于适配数据集和先​​验模型,针对适应概率模型确定第二组模型参数。
    • 57. 发明授权
    • Method for segmentation and identification of nonstationary time series
    • 非平稳时间序列的分割和识别方法
    • US06915241B2
    • 2005-07-05
    • US10126436
    • 2002-04-19
    • Jens KohlmorgenSteven Lemm
    • Jens KohlmorgenSteven Lemm
    • A61B5/048G06K9/62G06F15/00
    • G06K9/6297A61B5/048A61B5/7264G06K9/6228G06K9/6232
    • A method, implemented on a computer having a fixed amount of memory and CPU resources, for analyzing a sequence of data units derived from a dynamic system to which new data units may be added by classifying the data units, is disclosed. The method comprises determining the similarity of the data units being part of the sequence of data units by calculating the distance between all pairs of data units in a data space. The method further comprises classifying the data units by assigning labels to the data units such that, if the distance of a data unit which is to be classified to any other data unit exceeds a threshold, a new label is assigned to the data unit to be classified. Also, if the threshold is not exceeded, the label of the data unit being closest to the data unit to be classified is assigned to the data unit to be classified.
    • 公开了一种在具有固定量的存储器和CPU资源的计算机上实现的用于分析从动态系统导出的数据单元序列的方法,通过对数据单元进行分类可以添加新的数据单元。 该方法包括通过计算数据空间中所有数据单元对之间的距离来确定作为数据单元序列的一部分的数据单元的相似度。 该方法还包括通过向数据单元分配标签来对数据单元进行分类,使得如果待分类到任何其他数据单元的数据单元的距离超过阈值,则将新标签分配给数据单元 分类。 此外,如果不超过阈值,则将要分类的最接近数据单元的数据单元的标签分配给要分类的数据单元。
    • 59. 发明授权
    • Method and apparatus for recognising a radar target
    • 用于识别雷达目标的方法和装置
    • US06801155B2
    • 2004-10-05
    • US10333630
    • 2003-01-23
    • Mohammed JahangirKeith M Ponting
    • Mohammed JahangirKeith M Ponting
    • G01S7292
    • G06K9/6297G01S7/2923G01S7/415G01S13/524G06K9/3241
    • A method of recognizing a radar target comprises producing a sequence of Doppler spectra of radar returns form a scene and producing therefrom a sequence of Doppler feature vectors for a target in the scene. Hidden Markov modelling (HMM) is then used to identify the sequence of Doppler feature vectors as indicating a member of a particular class of targets. HMM is used to identify the sequence of Doppler feature vectors by assigning to each feature vector an occurrence probability by selecting a probability distribution or state from a set thereof associated with a class of targets, multiplying the occurrence probabilities together to obtain an overall probability, repeating for other probability distributions in the set to determine a combination of probability distributions giving highest overall probability for that class of target, then repeating for at least one other class of targets and selecting the target class as being that which yields the highest overall occurrence probability.
    • 识别雷达目标的方法包括从场景产生雷达返回的多普勒频谱序列,并由此产生场景中的目标的多普勒特征向量序列。 然后使用隐马尔可夫模型(HMM)来识别多普勒特征向量的序列,以指示特定类别的目标的成员。 HMM用于通过从与特定类别的目标相关联的集合中选择概率分布或状态来向每个特征向量分配发生概率来识别多普勒特征向量的序列,将发生概率相乘以获得总概率,重复 对于集合中的其他概率分布来确定给出该类目标的最高总概率的概率分布的组合,然后针对至少一个其他类别的目标重复,并且将目标类别选择为产生最高总发生概率的目标类别。
    • 60. 发明授权
    • Method for visual tracking using switching linear dynamic system models
    • US06683968B1
    • 2004-01-27
    • US09654022
    • 2000-09-01
    • Vladimir PavlovićJames Matthew Rehg
    • Vladimir PavlovićJames Matthew Rehg
    • G06K900
    • G06K9/6297G06K9/00335
    • A target in a sequence of measurements is tracked by modeling the target with a switching linear dynamic system (SLDS) having a plurality of dynamic models. Each dynamic model is associated with a switching state such that a model is selected when its associated switching state is true. A set of continuous state estimates is determined for a given measurement, and for each possible switching state. A state transition record is then determined by determining and recording, for a given measurement and for each possible switching state, an optimal previous switching state, based on the measurement sequence, where the optimal previous switching state optimizes a transition probability based on the set of continuous state estimates. A measurement model of the target is fitted to the measurement sequence. The measurement model is the description of the influence of the state on the measurement. It couples what is observed to the estimated target. Finally, a trajectory of the target is estimated from the measurement model fitting, the state transition record and parameters of the SLDS, where the estimated trajectory is a sequence of continuous state estimates of the target which correspond to the measurement sequence. The set of continuous state estimates is preferably obtained through Viterbi prediction. The optimal previous switching state can be an optimal prior switching state, or can be an optimal posterior switching state.