公开(公告)号：US09218524B2

公开(公告)日：2015-12-22

申请号：US13776184

申请日：2013-02-25

申请人： Quan Wang ,  Dijia Wu ,  Meizhu Liu ,  Le Lu ,  Kevin Shaohua Zhou

发明人： Quan Wang ,  Dijia Wu ,  Meizhu Liu ,  Le Lu ,  Kevin Shaohua Zhou

IPC分类号： G06K9/00 ,  G06T7/00 ,  G06K9/62

CPC分类号： G06K9/00362 ,  G06K9/6219 ,  G06K9/6282 ,  G06K2209/055 ,  G06T7/12 ,  G06T7/149 ,  G06T2207/10088 ,  G06T2207/30008

摘要： Methods and systems for automatic classification of images of internal structures of human and animal bodies. A method includes receiving a magnetic resonance (MR) image testing model and determining a testing volume of the testing model that includes areas of the testing model to be classified as bone or cartilage. The method includes modifying the testing model so that the testing volume corresponds to a mean shape and a shape variation space of an active shape model and producing an initial classification of the testing volume by fitting the testing volume to the mean shape and the shape variation space. The method includes producing a refined classification of the testing volume into bone areas and cartilage areas by refining the boundaries of the testing volume with respect to the active shape model and segmenting the MR image testing model into different areas corresponding to bone areas and cartilage areas.

摘要翻译： 自动分类人体和动物体内部结构图像的方法和系统。 一种方法包括接收磁共振（MR）图像测试模型并确定包括要分类为骨或软骨的测试模型的区域的测试模型的测试体积。 该方法包括修改测试模型，使得测试体积对应于活动形状模型的平均形状和形状变化空间，并通过将测试体积与平均形状和形状变化空间拟合来产生测试体积的初始分类 。 该方法包括通过相对于活性形状模型细化测试体积的边界并将MR图像测试模型分割成对应于骨区域和软骨区域的不同区域，来将测试体积的精细分类生成到骨区域和软骨区域中。

公开(公告)号：US08720561B2

公开(公告)日：2014-05-13

申请号：US13085187

申请日：2011-04-12

申请人： Shaohua Zhou

发明人： Shaohua Zhou

IPC分类号： E21B33/127 ,  E21B33/13

CPC分类号： E21B33/146 ,  E21B21/103 ,  E21B2034/007

摘要： A downhole tool provided within a casing string for use in cement staging operations. The tool includes a sleeve in the tool that selectively slides downward under pressure to expose ports formed in a side wall of the tool. Also, an annulus through the tool is selectively blocked so that cement in the casing string flows radially outward through the ports and into an annulus between the tool and a wellbore. An inflatable packer is included that is integral to the body of the tool and is inflated with a fluid that is pushed into the packer as the sleeve slides downward. An optional expanding agent can be included in the packer that is a metal oxide and is activated with the addition of water.

摘要翻译： 提供在套管柱内用于水泥分段操作的井下工具。 工具包括工具中的套筒，其在压力下选择性地向下滑动以暴露形成在工具的侧壁中的端口。 此外，通过工具的环形空间被选择性地阻塞，使得套管柱中的水泥通过端口径向向外流动并进入工具和井筒之间的环形空间。 包括与工具主体成一体的充气封隔器，并且随着套筒向下滑动而被推入封隔器的流体膨胀。 任选的发泡剂可以包括在作为金属氧化物的封隔器中，并且通过加入水来活化。

公开(公告)号：US08657004B2

公开(公告)日：2014-02-25

申请号：US13069025

申请日：2011-03-22

申请人： Shaohua Zhou

发明人： Shaohua Zhou

IPC分类号： E21B33/13

CPC分类号： E21B33/146 ,  E21B33/1295 ,  E21B34/12 ,  E21B34/14

摘要： A downhole tool provided within a casing string for use in cement staging operations. The tool includes an inflatable packer that is integral to the body of the tool and ports in sides of the tool. The ports are selectively opened and closed for circulating cement from within the tool so that cement can flow between the casing string and a wellbore. The ports are actuated by sliding the casing string upward or downward within the wellbore. The packer can be pressure tested after being set to ensure its efficacy.

摘要翻译： 提供在套管柱内用于水泥分段操作的井下工具。 该工具包括一个充气式封隔器，它与工具的主体和工具侧面的端口是一体的。 选择性地打开和关闭端口用于从工具内循环水泥，使得水泥可以在套管柱和井筒之间流动。 通过在井筒内向上或向下滑动套管柱来致动端口。 封隔器经过设定以进行压力测试以确保其功效。

公开(公告)号：US20130068467A1

公开(公告)日：2013-03-21

申请号：US13276382

申请日：2011-10-19

申请人： Shaohua Zhou

发明人： Shaohua Zhou

IPC分类号： E21B34/06 ,  E21B43/00

CPC分类号： E21B34/08 ,  E21B43/12 ,  E21B43/14

摘要： An inflow control device controls the rate of fluid flow from a subsurface fluid reservoir into a production tubing string. The inflow control device includes a particulate screen to remove particulate matter from the reservoir fluid, and at least two flow restrictors. The flow restrictors are positioned on circumferentially opposite sides of the inflow control device and are connected by an isolated fluid passage. The flow restrictors limit the flowrate of reservoir fluid when the reservoir fluid has a high water or gas-to-oil ratio. The inflow control device also includes at least one pressure drop device that generates a pressure drop for the reservoir fluid in response to fluid pressure in the reservoir. The inflow control device also includes a choking apparatus that allows the flow of reservoir fluid to be shut off and the particulate screen cleaned while the inflow control device is in place in hole.

摘要翻译： 流入控制装置控制从地下流体储存器流入生产油管柱的流体流速。 流入控制装置包括从储存器流体中除去颗粒物质的微粒筛，和至少两个限流器。 限流器定位在流入控制装置的周向相对侧上，并通过隔离的流体通道连接。 当储层流体具有高水或油 - 油比时，限流器限制储层流体的流量。 流入控制装置还包括至少一个压降装置，其响应于储存器中的流体压力而产生储层流体的压降。 流入控制装置还包括阻塞储存器流体被截断并且在流入控制装置就位于孔中时清洁颗粒状屏障的阻塞装置。

公开(公告)号：US20120261138A1

公开(公告)日：2012-10-18

申请号：US13085039

申请日：2011-04-12

申请人： Shaohua Zhou

发明人： Shaohua Zhou

IPC分类号： E21B19/00

CPC分类号： E21B21/106 ,  E21B19/16

摘要： A tool circulates drilling fluid through and rotates a pipe string while making up or breaking out a stand of pipe. The tool includes a tubular member defining a central bore having an axis, wherein the tubular member comprises an upper tubular member and a lower tubular member, and wherein the upper tubular member and the lower tubular member are configured to alternately rotate independently and in unison. The tool also includes a central bore valve coupled to the upper member, and at least one radial valve coupled to the upper tubular member axially below the central bore valve.

摘要翻译： 一个工具在组装或拆开管道的过程中使钻井液循环并旋转管柱。 该工具包括限定具有轴线的中心孔的管状构件，其中管状构件包括上部管状构件和下部管状构件，并且其中上部管状构件和下部管状构件被构造成独立地和一致地交替地旋转。 该工具还包括联接到上部构件的中心孔阀，以及至少一个径向阀，其在中心孔阀的轴向下方联接到上部管状构件。

公开(公告)号：US20080085044A1

公开(公告)日：2008-04-10

申请号：US11866572

申请日：2007-10-03

申请人： Shaohua Zhou ,  Jinghao Zhou ,  Bogdan Georgescu ,  Dorin Comaniciu

发明人： Shaohua Zhou ,  Jinghao Zhou ,  Bogdan Georgescu ,  Dorin Comaniciu

IPC分类号： G06K9/00

CPC分类号： G06K9/00 ,  G06K9/6256 ,  G06K9/72 ,  G06K2209/05

摘要： A method and system for regression-based object detection in medical images is disclosed. A regression function for predicting a location of an object in a medical image based on an image patch is trained using image-based boosting ridge regression (IBRR). The trained regression function is used to determine a difference vector based on an image patch of a medical image. The difference vector represents the difference between the location of the image patch and the location of a target object. The location of the target object in the medical image is predicted based on the difference vector determined by the regression function.

摘要翻译： 公开了一种用于医学图像中基于回归的物体检测的方法和系统。 使用基于图像的增强脊回归（IBRR）训练用于基于图像块预测医学图像中的对象的位置的回归函数。 训练回归函数用于基于医学图像的图像块来确定差分矢量。 差分向量表示图像块的位置与目标对象的位置之间的差异。 基于由回归函数确定的差分向量来预测目标对象在医学图像中的位置。

公开(公告)号：US20070098239A1

公开(公告)日：2007-05-03

申请号：US11466477

申请日：2006-08-23

申请人： Shaohua Zhou ,  Jie Shao ,  Dorin Comaniciu ,  Bogdan Georgescu

发明人： Shaohua Zhou ,  Jie Shao ,  Dorin Comaniciu ,  Bogdan Georgescu

IPC分类号： G06K9/00

CPC分类号： G06K9/621 ,  G06K9/00335 ,  G06K9/48 ,  G06K9/6209 ,  G06K2009/487 ,  G06K2209/05 ,  G06T7/251 ,  G06T2207/10132 ,  G06T2207/30048

摘要： A method for generating Pairwise Active Appearance Models (PAAMs) that characterize shape, appearance and motion of an object and using the PAAM to track the motion of an object is disclosed. A plurality of video streams is received. Each video stream includes a series of image frames that depict an object in motion. Each video stream includes an index of identified motion phases that are associated with a motion cycle of the object. For each video stream, a shape of the object is represented by a shape vector. An appearance of an object is represented by an appearance vector. The shape and appearance vectors associated at two consecutive motion phases are concatenated. Paired data for the concatenated shape and appearance vectors is computed. Paired data is computed for each two consecutive motion phases in the motion cycle. A shape subspace is constructed based on the computed paired data. An appearance subspace is constructed based on the computed paired data. A joint subspace is constructed using a combination of the shape subspace and appearance subspace. A PAAM is generated using the joint subspace and the PAAM is stored in a database.

摘要翻译： 公开了一种用于产生表征对象的形状，外观和运动以及使用PAAM跟踪对象的运动的成对活动外观模型（PAAM）的方法。 接收多个视频流。 每个视频流包括描绘运动对象的一系列图像帧。 每个视频流包括与对象的运动周期相关联的所识别的运动相位的索引。 对于每个视频流，对象的形状由形状向量表示。 物体的外观由外观矢量表示。 在两个连续的运动阶段相关联的形状和外观矢量被连接起来。 计算连续形状和外观向量的配对数据。 计算运动周期中每两个连续运动相位的配对数据。 基于计算的配对数据构建形状子空间。 基于计算出的配对数据构建出现子空间。 使用形状子空间和外观子空间的组合构建关节子空间。 使用联合子空间生成PAAM，并将PAAM存储在数据库中。

公开(公告)号：US08833466B2

公开(公告)日：2014-09-16

申请号：US13276382

申请日：2011-10-19

申请人： Shaohua Zhou

发明人： Shaohua Zhou

IPC分类号： E21B34/06 ,  E21B43/12 ,  E21B34/08 ,  E21B43/14

CPC分类号： E21B34/08 ,  E21B43/12 ,  E21B43/14

摘要： An inflow control device controls the rate of fluid flow from a subsurface fluid reservoir into a production tubing string. The inflow control device includes a particulate screen to remove particulate matter from the reservoir fluid, and at least two flow restrictors. The flow restrictors are positioned on circumferentially opposite sides of the inflow control device and are connected by an isolated fluid passage. The flow restrictors limit the flowrate of reservoir fluid when the reservoir fluid has a high water or gas-to-oil ratio. The inflow control device also includes at least one pressure drop device that generates a pressure drop for the reservoir fluid in response to fluid pressure in the reservoir. The inflow control device also includes a choking apparatus that allows the flow of reservoir fluid to be shut off and the particulate screen cleaned while the inflow control device is in place in hole.

摘要翻译： 流入控制装置控制从地下流体储存器流入生产油管柱的流体流速。 流入控制装置包括从储存器流体中除去颗粒物质的微粒筛，和至少两个限流器。 限流器定位在流入控制装置的周向相对侧上，并通过隔离的流体通道连接。 当储层流体具有高水或油 - 油比时，限流器限制储层流体的流量。 流入控制装置还包括至少一个压降装置，其响应于储存器中的流体压力而产生储层流体的压降。 流入控制装置还包括阻塞储存器流体被截断并且在流入控制装置就位于孔中时清洁颗粒状屏障的阻塞装置。

公开(公告)号：US20070237370A1

公开(公告)日：2007-10-11

申请号：US11539989

申请日：2006-10-10

申请人： Shaohua Zhou ,  Jie Shao ,  Jonathan Dowdall ,  Adrian Barbu ,  Bogdan Georgescu ,  Dorin Comaniciu

发明人： Shaohua Zhou ,  Jie Shao ,  Jonathan Dowdall ,  Adrian Barbu ,  Bogdan Georgescu ,  Dorin Comaniciu

IPC分类号： G06K9/00

CPC分类号： G06K9/6257 ,  G06K2209/05 ,  G06T7/33 ,  G06T2207/10124 ,  G06T2207/10132 ,  G06T2207/30048

摘要： The present invention is directed to a method for populating a database with a set of images of an anatomical structure. The database is used to perform appearance matching in image pairs of the anatomical structure. A set of image pairs of anatomical structures is received, where each image pair is annotated with a plurality of location-sensitive regions that identify a particular aspect of the anatomical structure. Weak learners are iteratively selected and an image patch is identified. A boosting process is used to identify a strong classifier based on responses to the weak learners applied to the identified image patch for each image pair. The responses comprise a feature response and a location response associated with the image patch. Positive and negative image pairs are generated. The positive and negative image pairs are used to learn a similarity function. The learned similarity function and iteratively selected weak learners are stored in the database.

摘要翻译： 本发明涉及一种用解剖结构的一组图像填充数据库的方法。 该数据库用于在解剖结构的图像对中执行外观匹配。 接收一组解剖结构的图像对，其中每个图像对用多个识别解剖结构的特定方面的位置敏感区域注释。 迭代选择弱学习者，并识别图像补丁。 基于对应用于每个图像对的所识别的图像补丁的弱学习者的响应，使用增强过程来识别强分类器。 响应包括与图像块相关联的特征响应和位置响应。 产生正负图像对。 正负图像对用于学习相似度函数。 学习的相似度函数和迭代选择的弱学习者存储在数据库中。

公开(公告)号：US20070071313A1

公开(公告)日：2007-03-29

申请号：US11372782

申请日：2006-03-10

申请人： Shaohua Zhou ,  Bogdan Georgescu ,  Xiang Zhou ,  Dorin Comaniciu

发明人： Shaohua Zhou ,  Bogdan Georgescu ,  Xiang Zhou ,  Dorin Comaniciu

IPC分类号： G06K9/62

CPC分类号： G06K9/6256 ,  G06K2009/00322 ,  G06K2209/05

摘要： A method for performing image based regression using boosting to infer an entity that is associated with an image of an object is disclosed. A regression function for a plurality of images is learned in which for each image the associated entity is known. The learned regression function is used to predict an entity associated with an image in which the entity is not known.

摘要翻译： 公开了一种使用增强来执行基于图像的回归的方法来推断与对象的图像相关联的实体。 学习用于多个图像的回归函数，其中对于每个图像，相关联的实体是已知的。 学习的回归函数用于预测与实体不知道的图像相关联的实体。