公开(公告)号：US20090175552A1

公开(公告)日：2009-07-09

申请号：US12094813

申请日：2005-11-25

申请人： Stephane Mallat

发明人： Stephane Mallat

IPC分类号： G06K9/36

CPC分类号： G06T5/10 ,  G06T5/002 ,  G06T2207/20016 ,  G06T2207/20064 ,  G06T2207/20192 ,  G10L21/0364 ,  G10L25/18 ,  G10L25/27 ,  H04N7/01 ,  H04N7/0125

摘要： A method and apparatus for enhancing a d-dimensional digital signal by taking advantage of regular geometrical structures. The invention comprises a multiscale redundant grouping lifting (102), which iteratively computes grouping arrays and bandelet signals with a redundant grouping lifting. A second step makes an enhancement (103) of bandelet signals. A third step is an inverse multiscale redundant grouping lifting (104) which iteratively updates an enhanced average signal with an inverse redundant grouping lifting that takes in input enhanced bandelet signals. It outputs an enhanced signal. The invention also comprises a subband grouping bandelet enhancement which incorporates a subband decomposition and reconstruction. It includes a super-resolution process which increases the signal resolution by computing an output enhanced signal on an output sampling grid that is larger than the input sampling grid. It also includes restoration systems that invert degradation operators with grouping bandelet enhancements.

摘要翻译： 一种通过利用常规几何结构来增强d维数字信号的方法和装置。 本发明包括多尺度冗余分组提升（102），其利用冗余分组提升来迭代地计算分组阵列和频带信号。 第二步使得bandelet信号的增强（103）。 第三步是反向多尺度冗余分组提升（104），其通过反向冗余分组提升来迭代地更新增强的平均信号，其采用输入增强的bandelet信号。 它输出增强信号。 本发明还包括一个包含子带分解和重构的子带分组带集增强。 它包括超分辨率过程，通过计算大于输入采样网格的输出采样网格上的输出增强信号来增加信号分辨率。 它还包括通过分组bandelet增强来反转降级操作符的恢复系统。

公开(公告)号：US20130058567A1

公开(公告)日：2013-03-07

申请号：US13698169

申请日：2011-05-26

申请人： Stephane Mallat

发明人： Stephane Mallat

IPC分类号： G06K9/40 ,  G06K9/62 ,  G06K9/68

CPC分类号： G06K9/4619 ,  G06K9/527

摘要： A digital filter bank having a number J≧1 of stages is disclosed. For each integer j such that 1≦j≦J, the j-th stage includes a plurality of filtering units (20, 21) each receiving an input signal of the j-th stage. These filtering units include a low-pass filtering unit (20) using real filtering coefficients and at least one band-pass filtering unit (21) using complex filtering coefficients. Following each band-pass filtering unit of the j-th stage, a respective modulus processing unit (25) generates a processed real signal as a function of squared moduli of complex output values of the band-pass filtering unit. The input signal of the first stage is a digital signal supplied to the digital filter bank, while for 1

摘要翻译： 公开了具有J≥1级的数字滤波器组。 对于每个整数j使得1＆nlE; j＆nlE; J，第j级包括多个滤波单元（20,21），每个滤波单元接收第j级的输入信号。 这些滤波单元包括使用实数滤波系数的低通滤波单元（20）和使用复数滤波系数的至少一个带通滤波单元（21）。 在第j级的每个带通滤波单元之后，相应的模数处理单元（25）根据带通滤波单元的复数输出值的平方模生成经处理的实信号。 第一级的输入信号是提供给数字滤波器组的数字信号，而对于1

公开(公告)号：US08229245B2

公开(公告)日：2012-07-24

申请号：US12445044

申请日：2006-10-10

申请人： Stephane Mallat ,  Christophe Bernard ,  Joan Bruna ,  Nicolas Laveau

发明人： Stephane Mallat ,  Christophe Bernard ,  Joan Bruna ,  Nicolas Laveau

IPC分类号： G06K9/40

CPC分类号： G06T5/001 ,  G06T5/10 ,  G06T2207/10016 ,  G06T2207/20016 ,  G06T2207/20064

摘要： Video processing method and means for enhancing a video stream, by computing transform coefficients using a spatio-temporal transform comprising a spatial subband transform and a causal time wavelet transform performing filterings with multiscale causal wavelets, modifying the transform coefficients with a nonlinear processing, and computing a processed video stream from the modified transform coefficients using a spatio-temporal reconstruction transform comprising an inverse subband transform and a short delay inverse time wavelet transform, where the short delay inverse time wavelet transform is implemented with wavelet filters modified with window functions to control the processing delay of the entire video processing method.

摘要翻译： 一种用于增强视频流的视频处理方法和装置，通过使用包括空间子带变换和因果时间小波变换来执行具有多尺度因果小波的滤波的时空变换来计算变换系数，使用非线性处理修改变换系数，以及计算 使用包括逆子带变换和短延迟反时间小波变换的时空重构变换的经修改的变换系数的经处理的视频流，其中使用通过窗函数修改的小波滤波器来实现短延迟反时间小波变换，以控制 处理整个视频处理延迟的方法。

公开(公告)号：US20100104210A1

公开(公告)日：2010-04-29

申请号：US12445044

申请日：2006-10-10

申请人： Stephane Mallat ,  Christophe Bernard ,  Joan Bruna ,  Nicolas Laveau

发明人： Stephane Mallat ,  Christophe Bernard ,  Joan Bruna ,  Nicolas Laveau

IPC分类号： G06K9/40

CPC分类号： G06T5/001 ,  G06T5/10 ,  G06T2207/10016 ,  G06T2207/20016 ,  G06T2207/20064

摘要： Video processing method and means for enhancing a video stream, by computing transform coefficients using a spatio-temporal transform comprising a spatial subband transform and a causal time wavelet transform performing filterings with multiscale causal wavelets, modifying the transform coefficients with a nonlinear processing, and computing a processed video stream from the modified transform coefficients using a spatio-temporal reconstruction transform comprising an inverse subband transform and a short delay inverse time wavelet transform, where the short delay inverse time wavelet transform is implemented with wavelet filters modified with window functions to control the processing delay of the entire video processing method.

摘要翻译： 一种用于增强视频流的视频处理方法和装置，通过使用包括空间子带变换和因果时间小波变换来执行具有多尺度因果小波的滤波的时空变换来计算变换系数，使用非线性处理修改变换系数，以及计算 使用包括逆子带变换和短延迟反时间小波变换的时空重构变换的经修改的变换系数的经处理的视频流，其中使用通过窗函数修改的小波滤波器来实现短延迟反时间小波变换，以控制 处理整个视频处理延迟的方法。

公开(公告)号：US20090278981A1

公开(公告)日：2009-11-12

申请号：US12296845

申请日：2006-04-12

申请人： Joan Bruna ,  Stephane Mallat

发明人： Joan Bruna ,  Stephane Mallat

IPC分类号： H04N7/01

CPC分类号： G06T3/4007

摘要： A method and apparatus for scaling video images, which applies more particularly to techniques for converting video sequence formats and deinterlacing. The invention comprises a parameterized interpolation (101) which computes interpolations at each new point of the output. An insensitive interval estimation (102) computes an interval where the probability distribution of the output image value is estimated to have its maximum, and an insensitive loss calculation (103) derives for each interpolation value a negative log likelihood measurement from an interval-insensitive probability distribution. After a spatial regularization (104) the invention includes a minimum loss selection (105) which selects the minimum loss interpolation at each new point and provides it as an output image value. The invention also includes a total variation increment module and a directional matching error module that can penalize the insensitive loss, for the minimum loss selection.

摘要翻译： 一种用于缩放视频图像的方法和装置，其更具体地涉及用于转换视频序列格式和去隔行扫描的技术。 本发明包括一个参数化内插（101），其计算在输出的每个新点处的内插。 不敏感区间估计（102）计算输出图像值的概率分布被估计为具有最大值的间隔，并且不敏感损失计算（103）从每个内插值导出来自不区分不敏感概率的负对数似然测量 分配。 在空间正则化（104）之后，本发明包括最小损耗选择（105），其选择每个新点处的最小损耗插值并将其提供为输出图像值。 本发明还包括总变化增量模块和方向匹配误差模块，其可以惩罚不敏感损耗，用于最小损耗选择。

公开(公告)号：US20060165174A1

公开(公告)日：2006-07-27

申请号：US10539684

申请日：2002-12-17

申请人： Christophe Bernard ,  Jerome Kalifa ,  Erwan Le Pennec ,  Stephane Mallat

发明人： Christophe Bernard ,  Jerome Kalifa ,  Erwan Le Pennec ,  Stephane Mallat

IPC分类号： H04N11/02 ,  H04B1/66 ,  H04N7/12 ,  H04N11/04

CPC分类号： H04N19/635 ,  H04N19/122 ,  H04N19/60 ,  H04N19/62

摘要： A method and apparatus for processing or compressing an n-dimensional digital signal by constructing a sparse rep resentation which takes advantage of the signal geometrical regularity. The invention comprises a warped wavelet packet transform which performs a cascade of warped subband filtering along wraping grids of sampling points adapted to the signal geometry. It also comprises a bandeletisation which decorrelates the warped wavelet packet coefficients to produce a sparse representation. An inverse warped wavelet packet transform and an inverse bandeletisation reconstruct a signal from its bandelet representation. The invention comprises a compression system which quantizes and codes the bandelet representation, a decompression system, a restoration system which enhances a signal by filtering its bandelet representation, and a feature vector extraction system for pattern recognition applications of a bandelet representation.

摘要翻译： 一种用于通过构造利用信号几何规律性的稀疏表示来处理或压缩n维数字信号的方法和装置。 本发明包括一个经过扭曲的小波包变换，其根据适合于信号几何的采样点的包裹网格进行翘曲子带滤波的级联。 它还包括一个去除关联扭曲小波包系数以产生稀疏表示的带分离。 逆变形小波包变换和反向带隙化从其带图表示重建信号。 本发明包括一种压缩系统，其对带状表示进行量化和编码，解压缩系统，通过滤波它的频带表示来增强信号的恢复系统，以及用于频带表示的模式识别应用的特征向量提取系统。

公开(公告)号：US08792553B2

公开(公告)日：2014-07-29

申请号：US12866279

申请日：2008-02-06

申请人： Stephane Mallat ,  Guoshen Yu

发明人： Stephane Mallat ,  Guoshen Yu

IPC分类号： H04N7/12 ,  H04N5/21

CPC分类号： H04N5/21 ,  G06T5/001 ,  G06T5/10 ,  G06T5/50 ,  G06T7/262 ,  G06T2207/10016 ,  G06T2207/20064

摘要： A wavelet transform is applied to successive images of a video sequence to obtain wavelet coefficients for each image, and directions of regularity are estimated in association with the wavelet coefficients. Recursive weights are also determined to be associated with the wavelet coefficients. An average multiscale bandlet coefficient associated with a wavelet coefficient for a current image is computed from this wavelet coefficient, the recursive weight associated therewith and a corresponding average multiscale bandlet coefficient computed for a previous image and associated with a wavelet coefficient offset according to the direction of regularity associated with the wavelet coefficient. The average multiscale bandlet coefficients can then be processed to produce an enhanced bandlet image to which an inverse wavelet transform is applied. The determination of a recursive weight associated with a wavelet coefficient for the current image comprises checking a condition between this wavelet coefficient and the corresponding average multiscale bandlet coefficient computed for the previous image, and updating a value of the recursive weight depending on the condition.

摘要翻译： 将小波变换应用于视频序列的连续图像，以获得每个图像的小波系数，并且与小波系数相关联地估计规则方向。 递归权重也被确定为与小波系数相关联。 与当前图像的小波系数相关联的平均多尺度带状系数根据该小波系数，与其相关联的递归权重和针对先前图像计算的对应的平均多尺度带状系数来计算，并且与根据 与小波系数相关的规律性。 然后可以处理平均多尺度带状系数以产生应用逆小波变换的增强的带状图像。 与当前图像的小波系数相关联的递归权重的确定包括检查该小波系数与为先前图像计算的对应的平均多尺度带隙系数之间的条件，以及根据条件更新递归权重的值。

公开(公告)号：US20110002384A1

公开(公告)日：2011-01-06

申请号：US12866279

申请日：2008-02-06

申请人： Stephane Mallat ,  Guoshen Yu

发明人： Stephane Mallat ,  Guoshen Yu

IPC分类号： H04N7/12

CPC分类号： H04N5/21 ,  G06T5/001 ,  G06T5/10 ,  G06T5/50 ,  G06T7/262 ,  G06T2207/10016 ,  G06T2207/20064

摘要： A wavelet transform is applied to successive images of a video sequence to obtain wavelet coefficients for each image, and directions of regularity are estimated in association with the wavelet coefficients. Recursive weights are also determined to be associated with the wavelet coefficients. An average multiscale bandlet coefficient associated with a wavelet coefficient for a current image is computed from this wavelet coefficient, the recursive weight associated therewith and a corresponding average multiscale bandlet coefficient computed for a previous image and associated with a wavelet coefficient offset according to the direction of regularity associated with the wavelet coefficient. The average multiscale bandlet coefficients can then be processed to produce an enhanced bandlet image to which an inverse wavelet transform is applied. The determination of a recursive weight associated with a wavelet coefficient for the current image comprises checking a condition between this wavelet coefficient and the corresponding average multiscale bandlet coefficient computed for the previous image, and updating a value of the recursive weight depending on the condition.

摘要翻译： 将小波变换应用于视频序列的连续图像，以获得每个图像的小波系数，并且与小波系数相关联地估计规则方向。 递归权重也被确定为与小波系数相关联。 与当前图像的小波系数相关联的平均多尺度带状系数根据该小波系数，与其相关联的递归权重和针对先前图像计算的对应的平均多尺度带状系数来计算，并且与根据 与小波系数相关的规律性。 然后可以处理平均多尺度带状系数以产生应用逆小波变换的增强的带状图像。 与当前图像的小波系数相关联的递归权重的确定包括检查该小波系数与为先前图像计算的对应的平均多尺度带隙系数之间的条件，以及根据条件更新递归权重的值。

公开(公告)号：US07519477B2

公开(公告)日：2009-04-14

申请号：US11584316

申请日：2006-10-20

申请人： Michael Edwin Glinsky ,  Jerome Kalifa ,  Stephane Mallat

发明人： Michael Edwin Glinsky ,  Jerome Kalifa ,  Stephane Mallat

IPC分类号： G06F19/00

CPC分类号： G01V1/306

摘要： A method for determining impedance coefficients of a seismic trace comprises determining reflection coefficients of the seismic trace, for example using a sparse spike inversion, integrating the reflection coefficients with respect to time to obtain impedance coefficients, and filtering the impedance coefficients by applying a low-cut window filter. The window size and/or shape may be defined by a variable parameter which may be either specified by a user or optimized on the basis of a lateral variability parameter calculated for different values of the window parameter.

摘要翻译： 用于确定地震迹线的阻抗系数的方法包括：例如使用稀疏尖峰反转来确定地震迹线的反射系数，将反射系数相对于时间积分以获得阻抗系数，以及通过应用低频波形来对阻抗系数进行滤波， 切窗过滤器。 窗口大小和/或形状可以由可变参数来定义，该可变参数可以由用户指定或基于针对窗口参数的不同值计算的横向可变性参数进行优化。

公开(公告)号：US08953875B2

公开(公告)日：2015-02-10

申请号：US13698169

申请日：2011-05-26

申请人： Stephane Mallat

发明人： Stephane Mallat

IPC分类号： G06K9/00 ,  G06K9/46 ,  G06K9/52

CPC分类号： G06K9/4619 ,  G06K9/527

摘要： A digital filter bank having a number J≧1 of stages is disclosed. For each integer j such that 1≦j≦J, the j-th stage includes a plurality of filtering units (20, 21) each receiving an input signal of the j-th stage. These filtering units include a low-pass filtering unit (20) using real filtering coefficients and at least one band-pass filtering unit (21) using complex filtering coefficients. Following each band-pass filtering unit of the j-th stage, a respective modulus processing unit (25) generates a processed real signal as a function of squared moduli of complex output values of the band-pass filtering unit. The input signal of the first stage is a digital signal supplied to the digital filter bank, while for 1

摘要翻译： 公开了具有J≥1级的数字滤波器组。 对于每个整数j使得1＆nlE; j＆nlE; J，第j级包括多个滤波单元（20,21），每个滤波单元接收第j级的输入信号。 这些滤波单元包括使用实数滤波系数的低通滤波单元（20）和使用复数滤波系数的至少一个带通滤波单元（21）。 在第j级的每个带通滤波单元之后，相应的模数处理单元（25）根据带通滤波单元的复数输出值的平方模生成经处理的实信号。 第一级的输入信号是提供给数字滤波器组的数字信号，而对于1