Iterative Inversion of Data from Simultaneous Geophysical Sources
    31.
    发明申请
    Iterative Inversion of Data from Simultaneous Geophysical Sources 审中-公开
    同时地球物理资料数据迭代反演

    公开(公告)号:US20130191090A1

    公开(公告)日:2013-07-25

    申请号:US13791252

    申请日:2013-03-08

    IPC分类号: G06F17/50

    摘要: Method for reducing the time needed to perform geophysical inversion by using simultaneous encoded sources in the simulation steps of the inversion process. The geophysical survey data are prepared by encoding (3) a group of source gathers (1), using for each gather a different encoding signature selected from a set (2) of non-equivalent encoding signatures. Then, the encoded gathers are summed (4) by summing all traces corresponding to the same receiver from each gather, resulting in a simultaneous encoded gather. (Alternatively, the geophysical data are acquired from simultaneously encoded sources.) The simulation steps needed for inversion are then calculated using a particular assumed velocity (or other physical property) model (5) and simultaneously activated encoded sources using the same encoding scheme used on the measured data. The result is an updated physical properties model (6) that may be further updated (7) by additional iterations.

    摘要翻译: 用于在反演过程的仿真步骤中通过使用同时编码的源来减少执行地球物理反演所需的时间的方法。 通过编码(3)一组源集合(1)来准备地球物理勘测数据,使用每组收集从非等效编码签名集合(2)中选出的不同编码签名。 然后,通过将来自每个聚集的相同接收器的所有跟踪相加,将编码的聚集相加(4),导致同时编码的聚集。 (或者,从同时编码的源获取地球物理数据。)然后使用特定的假定速度(或其他物理属性)模型(5)计算反演所需的模拟步骤,并使用与之相同的编码方案同时激活编码的源 测量数据。 结果是可以通过附加迭代进一步更新(7)的更新的物理属性模型(6)。

    Header-based processing of images compressed using multi-scale transforms
    32.
    发明授权
    Header-based processing of images compressed using multi-scale transforms 有权
    基于标题的处理使用多尺度变换压缩的图像

    公开(公告)号:US08184918B2

    公开(公告)日:2012-05-22

    申请号:US11787835

    申请日:2007-04-17

    IPC分类号: G06K9/20 G06K9/36 G06K9/46

    摘要: A method and apparatus is described for segmenting an image, for adaptively scaling an image, and for automatically scaling and cropping an image based on codestream headers data. In one embodiment, a file that can provide a header that contains multi-scale entropy distribution information on blocks of an image is received. For each block, the block is assigned to a scale from a set of scales that maximizes a cost function. The cost function is a product of a total likelihood and a prior. The total likelihood is a product of likelihoods of the blocks. The image is segmented by grouping together blocks that have been assigned equivalent scales. In one embodiment, the file represents an image in JPEG 2000 format.

    摘要翻译: 描述了用于分割图像,自适应地缩放图像以及基于码流头部数据自动缩放和裁剪图像的方法和装置。 在一个实施例中,可以接收可以提供包含图像块上的多尺度熵分布信息的报头的文件。 对于每个块,块被分配给从一组成本函数最大化的一组比例尺。 成本函数是一个总可能性和先前的乘积。 总可能性是块的可能性的乘积。 通过将已经分配了等效尺度的块分组在一起来分割图像。 在一个实施例中,文件表示JPEG 2000格式的图像。

    Iterative inversion of data from simultaneous geophysical sources
    33.
    发明授权
    Iterative inversion of data from simultaneous geophysical sources 有权
    同时地球物理资料数据的迭代反演

    公开(公告)号:US08121823B2

    公开(公告)日:2012-02-21

    申请号:US12441685

    申请日:2007-09-11

    IPC分类号: G06G7/48

    摘要: Method for reducing the time needed to perform geophysical inversion by using simultaneous encoded sources in the simulation steps of the inversion process. The geophysical survey data are prepared by encoding (3) a group of source gathers (1), using for each gather a different encoding signature selected from a set (2) of non-equivalent encoding signatures. Then, the encoded gathers are summed (4) by summing all traces corresponding to the same receiver from each gather, resulting in a simultaneous encoded gather. (Alternatively, the geophysical data are acquired from simultaneously encoded sources.) The simulation steps needed for inversion are then calculated using a particular assumed velocity (or other physical property) model (5) and simultaneously activated encoded sources using the same encoding scheme used on the measured data. The result is an updated physical properties model (6) that may be further updated (7) by additional iterations.

    摘要翻译: 用于在反演过程的仿真步骤中通过使用同时编码的源来减少执行地球物理反演所需的时间的方法。 通过编码(3)一组源集合(1)来准备地球物理勘测数据,使用每组收集从非等效编码签名集合(2)中选出的不同编码签名。 然后,通过将来自每个聚集的相同接收器的所有跟踪相加,将编码的聚集相加(4),导致同时编码的聚集。 (或者,从同时编码的源获取地球物理数据。)然后使用特定的假定速度(或其他物理属性)模型(5)计算反演所需的模拟步骤,并使用与之相同的编码方案同时激活编码的源 测量数据。 结果是可以通过附加迭代进一步更新(7)的更新的物理属性模型(6)。

    Method To Adapt A Template Dataset To A Target Dataset By Using Curvelet Representations
    34.
    发明申请
    Method To Adapt A Template Dataset To A Target Dataset By Using Curvelet Representations 有权
    通过使用Curvelet表示法将模板数据集修改为目标数据集的方法

    公开(公告)号:US20110147004A1

    公开(公告)日:2011-06-23

    申请号:US12675083

    申请日:2008-08-28

    IPC分类号: E21B43/00 G06K9/00 G06F17/10

    摘要: Method for adapting a template to a target data set. The template may be used to remove noise from, or interpret noise in, the target data set. The target data set is transformed (550) using a selected complex-valued, directional, multi-resolution transform (‘CDMT’) satisfying the Hubert transform property at least approximately. An initial template is selected, and it is transformed (551) using the same CDMT. Then the transformed template is adapted (560) to the transformed target data by adjusting the template's expansion coefficients within allowed ranges of adjustment so as to better match the expansion coefficients of the target data set. Multiple templates may be simultaneously adapted to better fit the noise or other component of the data that it may be desired to represent by template.

    摘要翻译: 将模板适配到目标数据集的方法。 该模板可用于从目标数据集中去除噪声或解释噪声。 目标数据集使用至少近似满足希伯特变换属性的选定复值定向多分辨率变换('CDMT')进行变换(550)。 选择初始模板,并使用相同的CDMT对其进行转换(551)。 然后,通过在允许的调整范围内调整模板的扩展系数,将变换的模板适配(560)到变换的目标数据,以便更好地匹配目标数据集的扩展系数。 多个模板可以同时适合于更好地拟合可能希望通过模板表示的数据的噪声或其他组件。

    Method For Analyzing Multiple Geophysical Data Sets
    35.
    发明申请
    Method For Analyzing Multiple Geophysical Data Sets 有权
    分析多个地球物理数据集的方法

    公开(公告)号:US20100212909A1

    公开(公告)日:2010-08-26

    申请号:US12684607

    申请日:2010-01-08

    CPC分类号: G01V11/00 G01V1/28

    摘要: An exemplary embodiment of the present invention provides a method for interpolating seismic data. The method includes collecting seismic data of two or more types over a field (401), determining an approximation to one of the types of the seismic data (402), and performing a wave-field transformation on the approximation to form a transformed approximation (405), wherein the transformed approximation corresponds to another of the collected types of seismic data. The method may also include setting the transformed approximation to match the measured seismic data of the corresponding types at matching locations (408), performing a wave-field transformation on the transformed approximation to form an output approximation (412), and using the output approximation to obtain a data representation of a geological layer (416).

    摘要翻译: 本发明的示例性实施例提供了一种用于内插地震数据的方法。 该方法包括:通过场(401)收集两种或多种类型的地震数据,确定近似于地震数据类型之一(402),以及对近似进行波场变换以形成变换近似( 405),其中变换的近似对应于所收集的地震数据的另一种。 该方法还可以包括设置变换后的近似以匹配匹配位置处的相应类型的测量的地震数据(408),对经变换的近似执行波场变换以形成输出近似(412),并且使用输出近似 以获得地质层的数据表示(416)。

    Header-based processing of images compressed using multi-scale transforms
    37.
    发明申请
    Header-based processing of images compressed using multi-scale transforms 有权
    基于标题的处理使用多尺度变换压缩的图像

    公开(公告)号:US20080044091A1

    公开(公告)日:2008-02-21

    申请号:US11787836

    申请日:2007-04-17

    IPC分类号: G06K9/36

    摘要: A method and apparatus is described for segmenting an image, for adaptively scaling an image, and for automatically scaling and cropping an image based on codestream headers data. In one embodiment, a file that can provide a header that contains multi-scale entropy distribution information on blocks of an image is received. For each block, the block is assigned to a scale from a set of scales that maximizes a cost function. The cost function is a product of a total likelihood and a prior. The total likelihood is a product of likelihoods of the blocks. The image is segmented by grouping together blocks that have been assigned equivalent scales. In one embodiment, the file represents an image in JPEG 2000 format.

    摘要翻译: 描述了用于分割图像,自适应地缩放图像以及基于码流头部数据自动缩放和裁剪图像的方法和装置。 在一个实施例中,可以接收可以提供包含图像块上的多尺度熵分布信息的报头的文件。 对于每个块,块被分配给从一组成本函数最大化的一组比例尺。 成本函数是一个总可能性和先前的乘积。 总可能性是块的可能性的乘积。 通过将已经分配了等效尺度的块分组在一起来分割图像。 在一个实施例中,文件表示JPEG 2000格式的图像。