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1. 发明申请

WO2007044301A3 TRACKING OBJECTS WITH MARKERS 审中-公开
标题翻译：用标记跟踪对象
公开(公告)号：WO2007044301A3
公开(公告)日：2007-12-06
申请号：PCT/US2006038460
申请日：2006-10-04
申请人： INTERSENSE INC , FOXLIN ERIC , NAIMARK LEONID
发明人： FOXLIN ERIC , NAIMARK LEONID
IPC分类号： G06K9/00
CPC分类号： G06T7/73
摘要： The spatial location and azimuth of an object are computed from the locations, in a single camera image, of exactly two points on the object and information about an orientation of the object. One or more groups of four or more collinear markers are located in an image, and for each group, outer markers are determined, the distances from each outer marker to the nearest marker in the same group are compared, and the outer marker with a closer nearest marker is identified as the first outer marker. Based on known distances between the outer markers and the marker nearest the first outer marker, an amount of perspective distortion of the group of markers in the image is estimated. Based on the perspective distortion, relative distances from each other point in the group to one of the outer markers are determined. Based on the relative distances, the group is identified.
摘要翻译：对象的空间位置和方位角是根据单个摄像机图像中的位置来计算的，该位置恰好是对象上的两个点以及有关对象方向的信息。一个或多个四个或更多的共线标记位于图像中，并且对于每个组，确定外标记，比较同一组中每个外标记到最近标记的距离，并将外标记与更接近最近的标记被识别为第一个外部标记。基于外部标记和最靠近第一外部标记的标记之间的已知距离，估计图像中标记组的透视失真量。基于透视失真，确定组中每个其他点相对于外部标记之一的相对距离。基于相对距离，该组被识别。

2. 发明申请

WO0156007A8 SELF-REFERENCED TRACKING 审中-公开
标题翻译：自我跟踪
公开(公告)号：WO0156007A8
公开(公告)日：2002-01-24
申请号：PCT/US0102632
申请日：2001-01-26
申请人： INTERSENSE INC , FOXLIN ERIC
发明人： FOXLIN ERIC
IPC分类号： G01B11/03 , G06F3/00 , G06F3/01 , G06F3/033 , G09G5/00
CPC分类号： G06F3/012 , G02B27/017 , G02B2027/0187 , G06F3/011 , G06F3/0346 , G06F3/0421 , G06F2203/0331
摘要： A new tracking technique is essentially "sourceless" (30) in that it can be used anywhere with no set-up, yet it enables a much wider range of virtual environment-style navigation and interaction techniques than does a simple head-orientation track. A sourceless head orientation tracker (30) is combined with a head-worn tracking device (12) that tracks a hand-mounted 3D beacon (14) relative to the head (16). The system encourages use of intuitive interaction techniques which exploit proprioception.
摘要翻译：新的跟踪技术本质上是“无源的”（30），因为它可以在任何地方使用，无需设置，但与简单的头向导轨相比，它能够实现更广泛的虚拟环境风格的导航和交互技术。无源头部取向跟踪器（30）与跟踪相对于头部（16）的手形3D信标（14）的头戴式跟踪装置（12）组合。系统鼓励使用利用本体感觉的直觉交互技术。

3. 发明申请

WO2004015369A2 MOTION TRACKING SYSTEM AND METHOD 审中-公开
公开(公告)号：WO2004015369A2
公开(公告)日：2004-02-19
申请号：PCT/US0325194
申请日：2003-08-11
申请人： INTERSENSE INC , FOXLIN ERIC
发明人： FOXLIN ERIC
IPC分类号： G01C21/00 , G01C21/16 , G01S19/11 , G01S19/48 , G01C
CPC分类号： G01C21/16 , G01C25/005
摘要： A navigation or motion tracking system includes components associated with particular sensors, which are decoupled from a tracking component that takes advantage of information in the sensor measurements. The architecture of this system enables development of sensor-specific components independently of the tracking component, and enables sensors and their associated components to be added or removed without having to re-implement the tracking component. In a software implementation of the system, sensor-specific software components may be dynamically incorporated into the system and the tracking component is then automatically configured to take advantage of measurements from the corresponding sensors without having to modify the tracking component.

4. 发明申请

WO0109636A9 RANGE MEASURING SYSTEM 审中-公开
标题翻译：范围测量系统
公开(公告)号：WO0109636A9
公开(公告)日：2002-05-10
申请号：PCT/US0040430
申请日：2000-07-19
申请人： INTERSENSE INC , HARRINGTON MICHAEL , FOXLIN ERIC
发明人： HARRINGTON MICHAEL , FOXLIN ERIC
IPC分类号： G01S7/52 , G01S15/10 , G01S3/808 , G01S3/801
CPC分类号： G01S15/102 , G01S7/52026
摘要： A system (100) is provided having a transmitting transducer (112) for transmitting a burst of energy in response to an electrical drive waveform. The system (100) includes a receiving transducer (114) for generating an electrical signal in response to arrival of the transmitted burst of energy. A generator (118) is provided for generating the electrical drive waveform, such generator (118) generating such waveform to enable the receiving transducer (114) to produce the electrical signal with at least one of the following characteristics: (a) a series of waves having an amplitude which increases, then decreases, and then increases again; (b) a series of groups of waves, such series having an initial group of waves of a period, T, followed by a transitional group having at least one wave with a period different from the period, T, followed by a succeeding group of waves having the period, T; or (c) a series of groups of waves, such series having an initial group of waves and a later group of waves, the later group of waves having a phase shift of 2 pi n relative to the initial group of waves, where n is a non-integer number.
摘要翻译：提供了一种系统（100），其具有响应于电驱动波形传送能量脉冲的发射换能器（112）。系统（100）包括用于响应于所发射的能量爆发的到达而产生电信号的接收换能器（114）。提供发电机（118）用于产生电驱动波形，该发生器（118）产生这种波形以使得接收换能器（114）能够产生具有以下特征中的至少一个的电信号：（a）一系列具有振幅增大然后减小然后再次增加的波; （b）一系列波形，这些波段具有周期T的初始波群，随后是具有至少一个具有与周期T不同的周期的波的过渡组，随后是后续组具有时间段T的波; 或者（c）一系列具有初始波群和稍后一组波的串的波群，相对于初始波群，后一组波具有2πn的相移，其中n是一个非整数。

5. 发明申请

WO2004015369A9 MOTION TRACKING SYSTEM AND METHOD 审中-公开
标题翻译：运动跟踪系统和方法
公开(公告)号：WO2004015369A9
公开(公告)日：2004-09-16
申请号：PCT/US0325194
申请日：2003-08-11
申请人： INTERSENSE INC , FOXLIN ERIC
发明人： FOXLIN ERIC
IPC分类号： G01C21/00 , G01C21/16 , G01S19/11 , G01S19/48
CPC分类号： G01C21/16 , G01C25/005
摘要： A navigation or motion tracking system includes components associated with particular sensors, which are decoupled from a tracking component that takes advantage of information in the sensor measurements. The architecture of this system enables development of sensor-specific components independently of the tracking component, and enables sensors and their associated components to be added or removed without having to re-implement the tracking component. In a software implementation of the system, sensor-specific software components may be dynamically incorporated into the system and the tracking component is then automatically configured to take advantage of measurements from the corresponding sensors without having to modify the tracking component.
摘要翻译：导航或运动跟踪系统包括与特定传感器相关联的部件，所述特定传感器与利用传感器测量中的信息的跟踪部件分离。该系统的体系结构能够独立于追踪组件开发传感器特定组件，并且使传感器及其相关组件能够被添加或移除而不必重新实现追踪组件。在系统的软件实现中，传感器专用软件组件可以被动态地合并到系统中，并且跟踪组件然后被自动配置为利用来自相应传感器的测量而不必修改跟踪组件。

6. 发明申请

WO0109636A8 RANGE MEASURING SYSTEM 审中-公开
标题翻译：量程测量系统
公开(公告)号：WO0109636A8
公开(公告)日：2001-06-14
申请号：PCT/US0040430
申请日：2000-07-19
申请人： INTERSENSE INC , HARRINGTON MICHAEL , FOXLIN ERIC
发明人： HARRINGTON MICHAEL , FOXLIN ERIC
IPC分类号： G01S7/52 , G01S15/10 , G01S3/808 , G01S3/801
CPC分类号： G01S15/102 , G01S7/52026
摘要： A system (100) is provided having a transmitting transducer (112) for transmitting a burst of energy in response to an electrical drive waveform. The system (100) includes a receiving transducer (114) for generating an electrical signal in response to arrival of the transmitted burst of energy. A generator (118) is provided for generating the electrical drive waveform, such generator (118) generating such waveform to enable the receiving transducer (114) to produce the electrical signal with at least one of the following characteristics: (a) a series of waves having an amplitude which increases, then decreases, and then increases again; (b) a series of groups of waves, such series having an initial group of waves of a period, T, followed by a transitional group having at least one wave with a period different from the period, T, followed by a succeeding group of waves having the period, T; or (c) a series of groups of waves, such series having an initial group of waves and a later group of waves, the later group of waves having a phase shift of 2 pi n relative to the initial group of waves, where n is a non-integer number.
摘要翻译：提供了一种系统（100），其具有用于响应于电驱动波形而传输能量脉冲串的传输变换器（112）。系统（100）包括接收换能器（114），用于响应于所发射的能量突发的到达而产生电信号。发生器（118）被提供用于产生电驱动波形，这种发生器（118）产生这样的波形以使得接收换能器（114）能够产生具有以下特性中的至少一个的电信号：（a）一系列具有增大然后减小然后再增加的幅度的波; （b）一系列波组，这些系列具有周期为T的初始波群，其后是具有至少一个周期不同于周期T的波的过渡群，其后是随后的一组随后的具有周期T的波; 或（c）一系列波组，这些系列组具有初始波组和后一组波，后一组波相对于初始波组具有2ππ的相移，其中n是一个非整数。

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