公开(公告)号：US20080260222A1

公开(公告)日：2008-10-23

申请号：US12056575

申请日：2008-03-27

申请人： Shashi Kumar ,  Xiang Zhou ,  Karthikeyan Kaliyamoorthi ,  Venkat Raghavan Ramamurthy ,  Arun Krishnan

发明人： Shashi Kumar ,  Xiang Zhou ,  Karthikeyan Kaliyamoorthi ,  Venkat Raghavan Ramamurthy ,  Arun Krishnan

IPC分类号： A61B5/00

CPC分类号： A61B6/032 ,  A61B6/5247 ,  G06T7/0016 ,  G06T7/20 ,  G06T7/38 ,  G06T2207/10081 ,  G06T2207/10104 ,  G06T2207/30096

摘要： A method for lesion detection includes acquiring pre-therapy medical image data from a first modality. Post-therapy medical image data is acquired from a second modality. A transformation matrix for transforming from an image space of the first modality to an image space of the second modality is calculated. A volume of interest is defined from the medical image data of the first modality. The volume of interest includes one or more lesions. The volume of interest is automatically copied to the medical image data of the second modality using the calculated transformation matrix. Treatment is directed to the lesion using the medical image data of the second modality including the copied volume of interest data.

摘要翻译： 用于病变检测的方法包括从第一模态获取治疗前医学图像数据。 治疗后医疗图像数据从第二模式获取。 计算用于从第一模态的图像空间变换为第二模态的图像空间的变换矩阵。 从第一模态的医学图像数据定义感兴趣的体积。 感兴趣的体积包括一个或多个损伤。 使用所计算的变换矩阵将感兴趣的体积自动复制到第二模态的医学图像数据。 使用包括复制的兴趣数据数据的第二模态的医学图像数据来治疗病变。

公开(公告)号：US20080052364A1

公开(公告)日：2008-02-28

申请号：US11837496

申请日：2007-08-11

申请人： Xiang Zhou

发明人： Xiang Zhou

IPC分类号： G06F15/16

CPC分类号： G06Q10/107 ,  H04L51/28

摘要： A system and method are disclosed for protecting e-mail sender identity by redirecting e-mail messages to an e-mail forwarding server via use of customized recipient e-mail addresses. An e-mail message is sent from a user's actual e-mail account to a customized recipient e-mail address. Because an e-mail forwarding server of the present invention is the Mail Exchange (MX) authority for the domain of the customized recipient e-mail address, the e-mail message is sent to the e-mail forwarding server. The e-mail forwarding server contains a database that stores users' actual e-mail addresses and their associated alias e-mail addresses. When the message is received by the e-mail forwarding server, it parses the message recipient's e-mail address to obtain the intended recipient's e-mail address, replaces the message sender's actual e-mail address with its associated alias e-mail address, and delivers the message to the original intended recipient. To the recipient the message appears to be sent directly from the sender's alias e-mail address. Therefore the sender's actual e-mail identity is not exposed to the recipient. When the e-mail forwarding server receives an e-mail message sent or replied to the user's alias e-mail address, it automatically forwards the message to the user's actual e-mail address.

摘要翻译： 公开了一种用于通过使用定制的接收者电子邮件地址将电子邮件消息重定向到电子邮件转发服务器来保护电子邮件发送者身份的系统和方法。 从用户的实际电子邮件帐户发送电子邮件到定制的收件人电子邮件地址。 因为本发明的电子邮件转发服务器是用于定制的收件人电子邮件地址的域的邮件交换（MX）权限，所以将电子邮件消息发送到电子邮件转发服务器。 电子邮件转发服务器包含一个数据库，用于存储用户的实际电子邮件地址及其关联的别名电子邮件地址。 当电子邮件转发服务器接收到该消息时，它将解析消息收件人的电子邮件地址以获取预期的收件人的电子邮件地址，将消息发送者的实际电子邮件地址替换为其关联的别名电子邮件地址， 并将消息传递给原始预期收件人。 对于收件人来说，消息似乎是直接从发件人的别名电子邮件地址发送的。 因此，发件人的实际电子邮件身份不会暴露给收件人。 当电子邮件转发服务器接收到发送或回复用户的别名电子邮件地址的电子邮件时，它会自动将邮件转发到用户的实际电子邮件地址。

公开(公告)号：US20080044074A1

公开(公告)日：2008-02-21

申请号：US11836358

申请日：2007-08-09

申请人： Anna Jerebko ,  Jiamin Liu ,  Xiang Zhou

发明人： Anna Jerebko ,  Jiamin Liu ,  Xiang Zhou

IPC分类号： G06K9/00 ,  G06T17/00

CPC分类号： G06T7/149 ,  G06T7/12 ,  G06T2207/10088 ,  G06T2207/20116 ,  G06T2207/20168 ,  G06T2207/30012 ,  G06T2207/30096

摘要： A method for segmenting vertebrae in digitized images includes providing a plurality of digitized whole-body images, detecting (91) and segmenting a spinal cord using 3D polynomial spinal model in each of the plurality of images, finding (92) a height of each vertebrae in each image from intensity projections along the spinal cord, and building (93) a parametric model of a vertebrae from the plurality of images. The method further includes providing a new digitized whole-body image including a spinal cord, fitting (94) an ellipse to each vertebrae of the spinal cord to find the major and minor axes, and applying (95) constraints to the major and minor axes in the new image based on the parametric model to segment the vertebrae.

摘要翻译： 用于在数字化图像中分割椎骨的方法包括提供多个数字化的全身图像，在多个图像中的每一个中使用3D多项式脊柱模型检测（91）和分割脊髓，找出（92）每个椎骨的高度 在来自沿着脊髓的强度投影的每个图像中，以及建筑物（93）来自所述多个图像的椎骨的参数模型。 该方法还包括提供新的数字化全身图像，其包括脊髓，将脊椎的每个椎骨的椭圆配件（94），以找到主轴和短轴，以及对主轴和短轴施加（95）约束 在基于参数模型的新图像中分割椎骨。

公开(公告)号：US20070291351A1

公开(公告)日：2007-12-20

申请号：US11424306

申请日：2006-06-15

申请人： Xiang Zhou ,  Martin Birk

发明人： Xiang Zhou ,  Martin Birk

IPC分类号： H01S3/00

CPC分类号： H01S3/06758 ,  H01S3/094096 ,  H01S3/10015 ,  H01S3/1305 ,  H01S3/1608 ,  H01S3/2375 ,  H01S3/302 ,  H01S2301/04 ,  H04B10/2916 ,  H04B10/296

摘要： A method for cost-effective optical transmission with fast Raman tilt or other transient event control uses a combination of Erbium-doped fiber amplifiers (EDFAs) and Raman fiber amplifiers (RFAs), where EDFAs are used as the primary optical amplifiers to compensate the span loss while the RFA (advantageously a forward-pumped RFA) is used only in some specific spans with a feed-forward control circuit serving as a fast Raman tilt transient compensator, the RFA also serving as an optical amplifier. A long haul optical transmission system using feed-forward controlled RFA's periodically spaced along its length, for example, when add-drop multiplexing is used, makes full use of the economics of EDFAs and the fast tilt transient control capability of a RFA enabled by an adjustable speed feed-forward or feed-back control technique. In addition, the introduced RFA also performs a dynamic gain equalization function which may eliminate the need or at least reduce the number of standalone dynamic gain equalizers which are required for an ultra-long-haul (ULH) WDM system to compensate for tilt. The invention is also applicable to the common EDFA/Raman hybrid systems and to some all-Raman systems where backward-pumped RFAs are used at each span to enhance Raman transient event control speed.

公开(公告)号：US20070291349A1

公开(公告)日：2007-12-20

申请号：US11424307

申请日：2006-06-15

申请人： Xiang Zhou ,  Martin Birk

发明人： Xiang Zhou ,  Martin Birk

IPC分类号： H01S3/00

CPC分类号： H01S3/302 ,  H01S3/06758 ,  H01S3/10015 ,  H01S3/1301 ,  H04B10/2916

摘要： A method for cost-effective optical transmission with fast Raman tilt or other transient event control uses a combination of Erbium-doped fiber amplifiers (EDFAs) and Raman fiber amplifiers (RFAs), where EDFAs are used as the primary optical amplifiers to compensate the span loss while the RFA (advantageously a forward-pumped RFA) is used only in some specific spans with a feed-forward control circuit serving as a fast Raman tilt transient compensator, the RFA also serving as an optical amplifier. A long haul optical transmission system using feed-forward controlled RFA's periodically spaced along its length, for example, when add-drop multiplexing is used, makes full use of the economics of EDFAs and the fast tilt transient control capability of a RFA enabled by an adjustable speed feed-forward or feed-back control technique. In addition, the introduced RFA also performs a dynamic gain equalization function which may eliminate the need or at least reduce the number of standalone dynamic gain equalizers which are required for an ultra-long-haul (ULH) WDM system to compensate for tilt. The invention is also applicable to the common EDFA/Raman hybrid systems and to some all-Raman systems where backward-pumped RFAs are used at each span to enhance Raman transient event control speed.

摘要翻译： 具有快速拉曼倾斜或其他瞬态事件控制的具有成本效益的光传输方法使用掺铒光纤放大器（EDFA）和拉曼光纤放大器（RFAs）的组合，其中EDFA用作主要光放大器以补偿跨距 损失，而RFA（有利地是前馈RFA）仅在具有用作快速拉曼倾斜瞬态补偿器的前馈控制电路的某些特定跨度中使用，RFA也用作光放大器。 使用前馈控制RFA的长距离光传输系统，例如当使用插入多路复用时，其长度周期性地间隔开，从而充分利用了EDFA的经济性和由RFA实现的RFA的快速倾斜瞬态控制能力 可调速度前馈或反馈控制技术。 此外，引入的RFA还执行动态增益均衡功能，其可以消除对超长距离（ULH）WDM系统所需的补偿倾斜的需要或至少减少独立的动态增益均衡器的数量。 本发明还可应用于普通的EDFA /拉曼混合系统和一些全拉曼系统，其中在每个跨度处使用反向泵浦RFA以增强拉曼瞬态事件控制速度。

公开(公告)号：US20070258132A1

公开(公告)日：2007-11-08

申请号：US11381244

申请日：2006-05-02

申请人： Xiang Zhou ,  Martin Birk

发明人： Xiang Zhou ,  Martin Birk

IPC分类号： H01S3/00

CPC分类号： H01S3/302 ,  H01S3/06754 ,  H01S3/09408 ,  H01S3/1301 ,  H01S2301/02 ,  H04B10/2916

摘要： An improved feedback-based dynamic gain control technique for a WDM system employing multi-wavelength-pumped Raman fiber amplifiers (RFAs) is proposed, in which only one feedback or feed-forward signal is required for the control of multiple Raman pumps. Compared to the traditional method requiring multiple feedback signals for multiple pumps, the proposed method results in substantial simplification of the control circuit and also exhibits faster control speed. Moreover, the proposed method allows use of the total signal gain as the feedback signal, which is more robust against polarization-related issues than the traditional method using signal powers at several different channels as the feedback signals. The improved technique has advantage for dynamic gain control in a backward-pumped distributed RFA because the feedback signal may be detected right after the RFA. For feed-forward, a telemetry channel may be used to send the feed-forward signal to a feed-forward control circuit for the multiple Raman pumps. In addition, the feed-forward control technique and the feedback control technique may be used together to achieve better performance than using each of them separately to control multiple Raman pumps. Polarization-related issues may be reduced by utilizing amplified spontaneous emission (ASE) noise as the feedback signal for a feedback-based gain control circuit for the RFA.

摘要翻译： 提出了一种用于采用多波长泵浦拉曼光纤放大器（RFAs）的WDM系统的改进的基于反馈的动态增益控制技术，其中仅需要一个反馈或前馈信号来控制多个拉曼泵。 与传统方法相比，对于多个泵需要多个反馈信号，所提出的方法可以大大简化控制电路，并且还具有更快的控制速度。 此外，所提出的方法允许使用总信号增益作为反馈信号，其对于偏振相关问题比在几个不同信道处使用信号功率的传统方法作为反馈信号更加鲁棒。 改进的技术对于反向泵浦分布式RFA中的动态增益控制具有优势，因为可以在RFA之后正确检测反馈信号。 对于前馈，可以使用遥测通道将前馈信号发送到多个拉曼泵的前馈控制电路。 此外，前馈控制技术和反馈控制技术可以一起使用以实现比分别使用它们来控制多个拉曼泵更好的性能。 通过利用放大的自发发射（ASE）噪声作为用于RFA的基于反馈的增益控制电路的反馈信号，可以减少极化相关问题。

公开(公告)号：US20070122018A1

公开(公告)日：2007-05-31

申请号：US11590451

申请日：2006-10-31

申请人： Xiang Zhou ,  Arun Krishnan ,  Alok Gupta ,  Vaclav Potesil

发明人： Xiang Zhou ,  Arun Krishnan ,  Alok Gupta ,  Vaclav Potesil

IPC分类号： G06K9/00 ,  A61B5/05

CPC分类号： G06T7/0012 ,  G06T7/38 ,  G06T2207/30004

摘要： A method of automatic change quantification for medical decision support includes: automatically detecting a structure in a set of medical images; characterizing the detected structure including modeling of deformation characteristics of the detected structure; matching images based on the characterization of the detected structure, wherein a size measure of the detected structure is constrained according to the deformation characteristics; and quantifying a change in the detected structure.

摘要翻译： 用于医疗决策支持的自动变化量化的方法包括：自动检测一组医学图像中的结构; 表征检测到的结构，包括检测结构的变形特性的建模; 基于检测结构的表征匹配图像，其中检测结构的尺寸测量根据变形特性被约束; 并量化检测结构的变化。

公开(公告)号：US20070109628A1

公开(公告)日：2007-05-17

申请号：US11424315

申请日：2006-06-15

申请人： Xiang Zhou ,  Martin Birk

发明人： Xiang Zhou ,  Martin Birk

IPC分类号： H01S3/00

CPC分类号： H04B10/296 ,  H01S3/005 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/06766 ,  H01S3/0677 ,  H01S3/094011 ,  H01S3/094046 ,  H01S3/094096 ,  H01S3/10007 ,  H01S3/10015 ,  H01S3/1301 ,  H01S3/302 ,  H01S2301/04 ,  H01S2301/06 ,  H04B10/2916 ,  H04B10/2942

摘要： The present invention provides methods and apparatuses for controlling a gain of a bidirectionally-pumped Raman fiber amplifier having both forward optical pumps and backward optical pumps. The overall gain is controlled by adjusting the forward optical pumps, while the power levels of the backward optical pumps are essentially fixed. Gain circuitry operates in an opened loop configuration and uses a predetermined function relating a power variation of at least one wavelength region with a pump power adjustment for at least one forward optical pump. Two approximate linear relationships between the input signal power variations and the required pump power adjustments are utilized in controlling the Raman fiber amplifier. Each approximate linear relationship includes at least one linear coefficient that relates a power variation for a specific wavelength region and a power adjustment of a specific Raman pump.

公开(公告)号：US20070081712A1

公开(公告)日：2007-04-12

申请号：US11542477

申请日：2006-10-03

申请人： Xiaolei Huang ,  Xiang Zhou ,  Anna Jerebko ,  Arun Krishnan ,  Haiying Guan ,  Toshiro Kubota ,  Vaclav Potesil

发明人： Xiaolei Huang ,  Xiang Zhou ,  Anna Jerebko ,  Arun Krishnan ,  Haiying Guan ,  Toshiro Kubota ,  Vaclav Potesil

IPC分类号： G06K9/00

CPC分类号： G06T7/174 ,  G06T7/155 ,  G06T7/33 ,  G06T7/38 ,  G06T2207/10072 ,  G06T2207/20016 ,  G06T2207/20081 ,  G06T2207/20164 ,  G06T2207/30004 ,  G06T2207/30204

摘要： A method for segmenting digitized images includes providing a training set comprising a plurality of digitized whole-body images, providing labels on anatomical landmarks in each image of said training set, aligning each said training set image, generating positive and negative training examples for each landmark by cropping the aligned training volumes into one or more cropping windows of different spatial scales, and using said positive and negative examples to train a detector for each landmark at one or more spatial scales ranging from a coarse resolution to a fine resolution, wherein the spatial relationship between a cropping windows of a coarse resolution detector and a fine resolution detector is recorded.

摘要翻译： 用于分割数字化图像的方法包括提供包括多个数字化的全身图像的训练集合，在所述训练集合的每个图像中的解剖学标志上提供标签，对准每个所述训练集合图像，为每个界标生成正和负训练样本 通过将对准的训练量裁剪成不同空间尺度的一个或多个裁剪窗口，并且使用所述正和负的示例来在从粗分辨率到精细分辨率的一个或多个空间尺度上训练每个地标的检测器，其中空间 记录粗分辨率检测器的裁切窗与精细分辨率检测器之间的关系。

公开(公告)号：US20070081706A1

公开(公告)日：2007-04-12

申请号：US11505081

申请日：2006-08-16

申请人： Xiang Zhou ,  Arun Krishnan ,  Alok Gupta

发明人： Xiang Zhou ,  Arun Krishnan ,  Alok Gupta

IPC分类号： G06K9/00

CPC分类号： G06T7/0012 ,  G06F19/321 ,  G06T7/41 ,  G06T2207/10081 ,  G06T2207/10104 ,  G06T2207/20101 ,  G06T2207/30004 ,  G16H50/20

摘要： A system for providing automatic diagnosis and decision support includes: a medical image database; generative learning and modeling modules that build distributional appearance models and spatial relational models of organs or structures using images from the medical image database; a statistical whole-body atlas that includes one or more distributional appearance models and spatial relational models of organs or structure, in one or more whole-body imaging modalities, built by the generative learning and modeling modules; and discriminative learning and modeling modules that build two-class or multi-class classifiers for performing at least one of organ, structure or disease detection or segmentation.

摘要翻译： 一种用于提供自动诊断和决策支持的系统包括：医学图像数据库; 生成学习和建模模块，使用医学图像数据库中的图像构建器官或结构的分布外观模型和空间关系模型; 统计全身图集，包括一个或多个分布式外观模型和器官或结构的空间关系模型，在一个或多个全身成像模式中，由生成学习和建模模块构建; 以及构建用于执行器官，结构或疾病检测或分割中的至少一种的两类或多类分类器的辨别性学习和建模模块。