公开(公告)号：US20190205778A1

公开(公告)日：2019-07-04

申请号：US16179771

申请日：2018-11-02

Applicant: Tata Consultancy Services Limited

Inventor： Ishan SAHU ,  Snehasis BANERJEE ,  Tanushyam CHATTOPADHYAY ,  Arpan PAL ,  Utpal GARAIN

IPC: G06N7/00 ,  G06N99/00 ,  G06K9/62 ,  G06F17/18

CPC classification number: G06F17/148

Abstract: Systems and methods for obtaining optimal mother wavelets for facilitating machine learning tasks. The traditional systems and methods provide for selecting a mother wavelet and signal classification using some traditional techniques and methods but none them provide for selecting an optimal mother wavelet to facilitate machine learning tasks. Embodiments of the present disclosure provide for obtaining an optimal mother wavelet to facilitate machine learning tasks by computing values of energy and entropy based upon labelled datasets and a probable set of mother wavelets, computing values of centroids and standard deviations based upon the values of energy and entropy, computing a set of distance values and normalizing the set of distance values and obtaining the optimal mother wavelet based upon the set of distance values for performing a wavelet transform and further facilitating machine learning tasks by classifying or regressing, a new set of signal classes, corresponding to a new set of signals.

公开(公告)号：US09836433B1

公开(公告)日：2017-12-05

申请号：US13437260

申请日：2012-04-02

Applicant: Jaclyn A. Hoke ,  David W. Jensen

Inventor： Jaclyn A. Hoke ,  David W. Jensen

IPC: G06K9/54 ,  G06F17/14 ,  G06T7/30 ,  G06T1/20 ,  G06T5/00

CPC classification number: G06F17/148 ,  G06T1/20 ,  G06T5/002 ,  G06T5/003 ,  G06T5/007 ,  G06T5/009 ,  G06T7/30 ,  G06T7/33 ,  G06T2200/21 ,  G06T2207/20064

Abstract: The present invention relates to improved systems and methods of image processing and more particularly to improved systems and method of image processing using modified image data to produce enhanced data and images using fewer processing cycles and lower system power.

公开(公告)号：US09819951B2

公开(公告)日：2017-11-14

申请号：US14432896

申请日：2012-10-18

Applicant: Nokia Technologies Oy

Inventor： Christian Markus Makela

IPC: H04N19/42 ,  H04N19/63 ,  H04N19/436 ,  G06T1/20 ,  G06F17/14 ,  H04N19/635 ,  H04N19/645

CPC classification number: H04N19/436 ,  G06F17/145 ,  G06F17/148 ,  G06T1/20 ,  H04N19/42 ,  H04N19/63 ,  H04N19/635 ,  H04N19/645

Abstract: The invention relates to methods, devices, systems and computer program products where input image data is received for processing in a computer system, a first transform is carried out to the input image data, the transform being done in a first direction with respect to the input image data, to obtain first transformed image data, a transposing operation is carried out to the first transformed image data to obtain first transposed image data, and a second transform in a transform is carried out to the first transposed image data, the second transform being done in a second direction with respect to the input image data, to obtain second transformed image data. The first transform and the second transform may be carried out in a processor in a parallel manner, and the transposing operation may be carried out at least partially using registers of the processor.

公开(公告)号：US09390067B2

公开(公告)日：2016-07-12

申请号：US13700040

申请日：2011-05-24

Applicant: Fernando Garnacho Vecino ,  Miguel Angel Sanchez-Uran Gonzalez ,  Javier Ortego La Moneda

Inventor： Fernando Garnacho Vecino ,  Miguel Angel Sanchez-Uran Gonzalez ,  Javier Ortego La Moneda

IPC: G06F17/14 ,  G01R31/08 ,  G06F17/18 ,  G01R31/02 ,  G01R31/12

CPC classification number: G06F17/148 ,  G01R31/021 ,  G01R31/083 ,  G01R31/088 ,  G01R31/1272 ,  G06F17/18

Abstract: A method specially designed for detecting events associated with partial discharges (PDs) in high voltage cables includes the identification of the location and the evaluation of the amplitude and rate of repetition per period of the grid voltage, with the possibility of identifying different sources producing PD signals as a function of the location thereof and recognising the type of defect associated with PDs in the same location. Generated electric signals are measured and the discriminated in relation to the background noise. A system for carrying out the method includes devices for discriminating the noise in relation to the transient waveform of the PD, determining the parameters associated therewith, determining the map of sources of PDs along the length of the cable, graphically representing the sources, and identifying the patterns of the sources of PDs separated as a function of the location thereof along the length of the cable.

Abstract translation: 专门设计用于检测与高压电缆中部分放电（PD）有关的事件的方法包括对电网电压每个周期的幅度和重复频率的位置的识别和评估，以及识别产生PD的不同来源的可能性 信号作为其位置的函数，并且识别与相同位置中的PD相关联的缺陷的类型。 产生的电信号被测量并且与背景噪声相关。 用于执行该方法的系统包括用于相对于PD的瞬态波形鉴别噪声的装置，确定与其相关的参数，确定沿电缆长度的PD源的映射图，以图形方式表示源，以及识别 沿着电缆的长度，PD的源的图案作为其位置的函数分开。

公开(公告)号：US09098458B1

公开(公告)日：2015-08-04

申请号：US13625431

申请日：2012-09-24

Applicant: Mark Fischer

Inventor： Mark Fischer

IPC: G06F17/14 ,  G06K9/00 ,  G10L17/26 ,  A61B5/00 ,  H04N19/63

CPC classification number: G06F17/148 ,  A01K29/005 ,  A61B5/726 ,  G06K9/00516 ,  G06K9/00536 ,  G10L17/26 ,  H04N19/63

Abstract: A method and apparatus for profiling and identifying the source of a signal is provided. A first method includes receiving a signal produced by a known source and creating a matrix of wavelet coefficients corresponding to a wavelet transform of the signal. The method also includes profiling the signal according to an output of a wavelet transform utilizing a particular base function and a particular scale set. A second method includes performing a wavelet transform having a particular profile on a received signal and determining the presence of a particular signal-producing entity as a function of wavelet coefficients exceeding a threshold. An apparatus includes a receiver configured to receive a signal and a processor coupled to the receiver, such that the processor is configured to perform wavelet transforms on the signals. A database is coupled to the processor and configured to store wavelet transform profiles.

公开(公告)号：US20130289944A1

公开(公告)日：2013-10-31

申请号：US13815848

申请日：2013-03-15

Applicant: Ghassan Ayesh

Inventor： Ghassan Ayesh

IPC: H04B15/00

CPC classification number: H04B15/00 ,  G06F17/148 ,  G06N3/0436 ,  G06N3/0445 ,  G06N3/084 ,  G06N3/088

Abstract: In one embodiment, a method for reducing signal noise and generating features includes the steps of receiving a discrete signal, transforming the discrete signal, using a processor, into a non-linear feature space, classifying the non-linear feature space, using the processor, into a set of non-linear feature sub-spaces, and performing a mathematical operation, using the processor, on the non-linear feature space and the set of non-linear feature sub-spaces, to produce an output feature set.

Abstract translation: 在一个实施例中，用于降低信号噪声和产生特征的方法包括以下步骤：使用处理器将离散信号变换成非线性特征空间，使用处理器对非线性特征空间进行分类 ，进入一组非线性特征子空间，并且使用处理器在非线性特征空间和非线性特征子空间集合上执行数学运算以产生输出特征集合。

公开(公告)号：US20130211750A1

公开(公告)日：2013-08-15

申请号：US13700040

申请日：2011-05-24

Applicant: Fernando Garnacho Vecino ,  Miguel Angel Sanchez-Uran Gonzalez ,  Javier Oretgo La Moneda

Inventor： Fernando Garnacho Vecino ,  Miguel Angel Sanchez-Uran Gonzalez ,  Javier Oretgo La Moneda

IPC: G06F17/14 ,  G01R31/08 ,  G06F17/18 ,  G01R31/02

CPC classification number: G06F17/148 ,  G01R31/021 ,  G01R31/083 ,  G01R31/088 ,  G01R31/1272 ,  G06F17/18

Abstract: A method specially designed for detecting events associated with partial discharges (PDs) in high voltage cables includes the identification of the location and the evaluation of the amplitude and rate of repetition per period of the grid voltage, with the possibility of identifying different sources producing PD signals as a function of the location thereof and recognising the type of defect associated with PDs in the same location. Generated electric signals are measured and the discriminated in relation to the background noise. A system for carrying out the method includes devices for discriminating the noise in relation to the transient waveform of the PD, determining the parameters associated therewith, determining the map of sources of PDs along the length of the cable, graphically representing the sources, and identifying the patterns of the sources of PDs separated as a function of the location thereof along the length of the cable.

Abstract translation: 专门设计用于检测与高压电缆中部分放电（PD）有关的事件的方法包括对电网电压每个周期的幅度和重复频率的位置的识别和评估，以及识别产生PD的不同来源的可能性 信号作为其位置的函数，并且识别与相同位置中的PD相关联的缺陷的类型。 产生的电信号被测量并且与背景噪声相关。 用于执行该方法的系统包括用于相对于PD的瞬态波形鉴别噪声的装置，确定与其相关的参数，确定沿电缆长度的PD源的映射图，以图形方式表示源，以及识别 沿着电缆的长度，PD的源的图案作为其位置的函数分开。

公开(公告)号：US08238434B2

公开(公告)日：2012-08-07

申请号：US12112397

申请日：2008-04-30

Applicant: Takahiro Fukuhara ,  Yuuki Tanaka

Inventor： Takahiro Fukuhara ,  Yuuki Tanaka

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC classification number: G06F17/148 ,  H04N19/42 ,  H04N19/423 ,  H04N19/593 ,  H04N19/63 ,  H04N19/635

Abstract: An inverse wavelet transformer causes a level-graded buffer to store one of two lines of coefficient data generated through a synthesis filtering operation. In order to adjust an output timing of image data, the inverse wavelet transformer causes an output buffer to store temporarily the other line of the two lines of coefficient data in a period throughout which the output buffer stores no baseband image data and then causes the level-graded buffer to store the other line of the two lines of coefficient data. In this way, the level-graded buffer stores coefficients generated through the synthesis filtering operation on a line-by-line basis.

Abstract translation: 逆小波变换器使得电平梯度缓冲器存储通过合成滤波操作产生的两行系数数据之一。 为了调整图像数据的输出定时，逆小波变换器使得输出缓冲器暂时存储两行系数数据的另一行，其中输出缓冲器不存在基带图像数据，然后使其等级 分级缓冲区存储两行系数数据的另一行。 以这种方式，电平分级缓冲器按行逐行存储通过合成滤波操作产生的系数。

公开(公告)号：US20120197594A1

公开(公告)日：2012-08-02

申请号：US13382046

申请日：2010-06-23

Applicant: Thomas Orth ,  Stefan Nitsche ,  Till Schmitte ,  Klaus-Dieter Müller

Inventor： Thomas Orth ,  Stefan Nitsche ,  Till Schmitte ,  Klaus-Dieter Müller

IPC: G06F17/18

CPC classification number: G01N29/07 ,  G01N29/4427 ,  G01N29/4463 ,  G01N29/46 ,  G01N2291/044 ,  G01N2291/2634 ,  G06F17/148

Abstract: The invention relates to a method for filtering measurement signals by way of wavelet filtering, wherein the signals are first transferred to the wavelet domain by way of a wavelet transform, are subjected to threshold analysis, and the threshold values can then be varied in the wavelet domain commensurate with the respective measurement situation. The measurement signals are filtered by a plurality of filters arranged in segmentation levels and a statistical parameter is calculated based on an adjustable number of already calculated wavelet coefficients of a segmentation level and is then multiplied with a value that can be adjusted.

Abstract translation: 本发明涉及一种通过小波滤波滤波测量信号的方法，其中信号首先通过小波变换传送到小波域，进行阈值分析，然后阈值可以在小波变化 与相应的测量情况相称。 测量信号通过以分段级布置的多个滤波器进行滤波，并且基于已经计算的分段级别的小波系数的可调整数量来计算统计参数，然后与可调节的值相乘。

公开(公告)号：US08126950B2

公开(公告)日：2012-02-28

申请号：US10573953

申请日：2004-05-06

Applicant: Haibin Huang ,  Xiao Lin ,  Susanto Rahardja ,  Rongshan Yu

Inventor： Haibin Huang ,  Xiao Lin ,  Susanto Rahardja ,  Rongshan Yu

IPC: G06F17/14

CPC classification number: G06F17/147 ,  G06F17/141 ,  G06F17/148 ,  G10L19/0017 ,  G10L19/0212 ,  G10L19/24 ,  H04N19/60 ,  H04N19/63

Abstract: A method for performing a domain transformation of a digital signal from the time domain into the frequency domain and vice versa, the method including performing the transformation by a transforming element, the transformation element comprising a plurality of lifting stages, wherein the transformation corresponds to a transformation matrix and wherein at least one lifting stage of the plurality of lifting stages comprises at least one auxiliary transformation matrix and a rounding unit, the auxiliary transformation matrix comprising the transformation matrix itself or the corresponding transformation matrix of lower dimension. The method further comprising performing a rounding operation of the signal by the rounding unit after the transformation by the auxiliary transformation matrix.

Abstract translation: 一种用于执行从时域到频域的数字信号的域变换的方法，反之亦然，所述方法包括由变换元素执行变换，所述变换元素包括多个提升级，其中所述变换对应于 变换矩阵，并且其中所述多个提升级中的至少一个提升级包括至少一个辅助变换矩阵和舍入单元，所述辅助变换矩阵包括所述变换矩阵本身或相应的较低维度的转换矩阵。 该方法还包括：在通过辅助变换矩阵进行变换之后，由舍入单元执行该信号的舍入操作。