Featured wands for camera calibration and as a gesture based 3D interface device
    1.
    发明授权
    Featured wands for camera calibration and as a gesture based 3D interface device 有权
    用于相机校准的特色魔杖和作为基于手势的3D界面装置

    公开(公告)号:US07775439B2

    公开(公告)日:2010-08-17

    申请号:US11680515

    申请日:2007-02-28

    IPC分类号: G06K7/10

    摘要: Passive wands, tracked by one or more cameras, are used as user interface devices. The wands are inexpensive, and are a natural way for users to interact with devices such as large displays. Each wand may be used to specify a full 6 degrees of freedom, which can be helpful for manipulation of 3D applications. The wands may also be used to identify 3D world points, which is useful for multi-camera calibration, and for building 3D models of physical spaces. The described methods provide a more precise estimation of wand pose, and can be implemented with a single camera. Also described is a method for estimation wand pose using information available along a one dimensional ‘line scan’ within the image, which simplifies processing.

    摘要翻译: 由一个或多个摄像机跟踪的被动魔棒被用作用户界面设备。 魔杖价格便宜,是用户与大型显示器等设备交互的自然方式。 每个魔杖可用于指定完整的6自由度,这有助于3D应用的操纵。 魔杖还可以用于识别3D世界点,这对于多摄像机校准是有用的,并且用于构建物理空间的3D模型。 所描述的方法提供了对Wand姿态的更精确的估计,并且可以用单个相机来实现。 还描述了一种使用沿着图像内的一维“线扫描”可用的信息来估计魔杖姿态的方法,这简化了处理。

    FEATURED WANDS FOR CAMERA CALIBRATION AND AS A GESTURE BASED 3D INTERFACE DEVICE
    2.
    发明申请
    FEATURED WANDS FOR CAMERA CALIBRATION AND AS A GESTURE BASED 3D INTERFACE DEVICE 有权
    用于相机校准的特征和作为基于姿态的3D接口设备

    公开(公告)号:US20080167818A1

    公开(公告)日:2008-07-10

    申请号:US11680515

    申请日:2007-02-28

    IPC分类号: G01S5/00

    摘要: Passive wands, tracked by one or more cameras, are used as user interface devices. The wands are inexpensive, and are a natural way for users to interact with devices such as large displays. Each wand may be used to specify a full 6 degrees of freedom, which can be helpful for manipulation of 3D applications. The wands may also be used to identify 3D world points, which is useful for multi-camera calibration, and for building 3D models of physical spaces. The described methods provide a more precise estimation of wand pose, and can be implemented with a single camera. Also described is a method for estimation wand pose using information available along a one dimensional ‘line scan’ within the image, which simplifies processing.

    摘要翻译: 由一个或多个摄像机跟踪的被动魔棒被用作用户界面设备。 魔杖价格便宜,是用户与大型显示器等设备交互的自然方式。 每个魔杖可用于指定完整的6自由度,这有助于3D应用的操纵。 魔杖还可以用于识别3D世界点,这对于多摄像机校准是有用的,并且用于构建物理空间的3D模型。 所描述的方法提供了对Wand姿态的更精确的估计,并且可以用单个相机来实现。 还描述了一种使用沿着图像内的一维“线扫描”可用的信息来估计魔杖姿态的方法,这简化了处理。

    System, server and method for optimizing a group management protocol
    4.
    发明授权
    System, server and method for optimizing a group management protocol 有权
    用于优化组管理协议的系统,服务器和方法

    公开(公告)号:US08625591B2

    公开(公告)日:2014-01-07

    申请号:US13326811

    申请日:2011-12-15

    IPC分类号: H04L12/56

    CPC分类号: H04L12/185 H04L63/0236

    摘要: The present invention discloses a method and router for optimizing a group management protocol so as to reduce the complexity in setting and switching filter modes in the prior protocols. The method includes: a group member sends a membership report to a multicast router; upon reception of the membership report, the multicast router judges whether the report carries an EXCLUDE mode non-empty source list; if so, the router updates a corresponding state inside the router according to a non-source-specific join; or else, the router updates the corresponding state inside the router directly with the information of the report. The method provided by the present invention can avoid the complex switching and processing of filter modes in the prior protocols.

    摘要翻译: 本发明公开了一种用于优化组管理协议的方法和路由器,以便降低在先前协议中设置和切换过滤模式的复杂度。 该方法包括:组成员向组播路由器发送成员关系报告; 组播路由器接收到成员关系报告后,判断该报告是否携带EXCLUDE模式非空源列表; 如果是,则路由器根据非源特定连接更新路由器内的对应状态; 否则,路由器会直接使用报告的信息更新路由器内的相应状态。 本发明提供的方法可以避免现有协议中的过滤模式的复杂切换和处理。

    Method and system for detection of deformable structures in medical images
    7.
    发明申请
    Method and system for detection of deformable structures in medical images 有权
    用于检测医学图像中可变形结构的方法和系统

    公开(公告)号:US20090010509A1

    公开(公告)日:2009-01-08

    申请号:US12214339

    申请日:2008-06-18

    IPC分类号: G06K9/62

    摘要: A method and system for detection of deformable structures in medical images is disclosed. Deformable structures can represent blood flow patterns in images such as Doppler echocardiograms. A probabilistic, hierarchical, and discriminant framework is used to detect such deformable structures. This framework integrates evidence from different primitive levels via a progressive detector hierarchy, including a series of discriminant classifiers. A target deformable structure is parameterized by a multi-dimensional parameter, and primitives or partial parameterizations of the parameter are determined. An input image is received, and a series of primitives are sequentially detected using the progressive detector hierarchy, in which each detector or classifier detects a corresponding primitive. The final detector detects configuration candidates for the deformable structure.

    摘要翻译: 公开了用于检测医学图像中的可变形结构的方法和系统。 可变形结构可以表示图像中的血流模式,例如多普勒超声心动图。 概率,分层和判别框架用于检测这种可变形结构。 该框架通过渐进式检测器层次结合不同原始级别的证据,包括一系列判别分类器。 目标可变形结构由多维参数进行参数化,并确定参数的基元或部分参数化。 接收输入图像,并且使用逐行检测器层级顺序地检测一系列图元,其中每个检测器或分类器检测相应的图元。 最终检测器检测可变形结构的配置候选。

    System and Method for Quasi-Real-Time Ventricular Measurements From M-Mode EchoCardiogram
    8.
    发明申请
    System and Method for Quasi-Real-Time Ventricular Measurements From M-Mode EchoCardiogram 有权
    从M模式回波心电图准确实时心室测量的系统和方法

    公开(公告)号:US20080281203A1

    公开(公告)日:2008-11-13

    申请号:US12054094

    申请日:2008-03-24

    IPC分类号: A61B8/00

    摘要: A method for measuring ventricular dimensions from M-mode echocardiograms, includes providing a digitized M-mode echocardiogram image, running a plurality of local classifiers, where each local classifier trained to detect a landmark on either an end-diastole (ED) line or an end-systole (ES) line in the image, recording all possible landmarks detected by the classifiers, where a search range in an N-dimensional parameter space defined by the landmarks for each dimension is reduced to a union of subsets, where each dimension of the parameter space corresponds a landmark, for each combination of possible landmarks, checking if an order of the landmarks is consistent with a known ordering of the landmarks, and if the order is consistent, running a global detector on each consistent combination of landmarks to find a landmark combination with a highest detection probability as a confirmed landmark detection, where the landmarks are used for measuring ventricular dimensions.

    摘要翻译: 一种用于从M型超声心动图测量心室尺寸的方法,包括提供数字化的M模式超声心动图图像,运行多个局部分类器,其中训练每个局部分类器以检测舒张末期(ED)线或 记录图像中的终点收缩(ES)线,记录由分类器检测到的所有可能的地标,其中由每个维度的地标定义的N维参数空间中的搜索范围被减少到子集的并集,其中每个维度 参数空间对应于地标,对于可能的地标的每个组合,检查地标的顺序是否与已知的地标的顺序一致,并且如果顺序一致,则在每个一致的地标组合上运行全局检测器以找到 具有最高检测概率的地标组合,作为确认的地标检测,其中地标被用于测量心室维度。

    Loudspeaker
    9.
    外观设计

    公开(公告)号:USD972531S1

    公开(公告)日:2022-12-13

    申请号:US29752109

    申请日:2020-09-25

    申请人: Feng Guo

    设计人: Feng Guo