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1. 发明授权

US06810279B2 Hyperspectral imaging calibration device 有权
标题翻译：高光谱成像校准装置
公开(公告)号：US06810279B2
公开(公告)日：2004-10-26
申请号：US09986105
申请日：2001-11-07
申请人： James R. Mansfield , Jenny E. Freeman , Michael E. Leventon , Michael J. Hopmeier , Derek Brand
发明人： James R. Mansfield , Jenny E. Freeman , Michael E. Leventon , Michael J. Hopmeier , Derek Brand
IPC分类号： A61B505
CPC分类号： G01J3/2823 , G01J3/28 , G01J2003/2866
摘要： Hyperspectral imaging calibration devices and methods for their use are described that generate images of three dimensional samples. A calibration device may assume the shape of a desired imaging sample such as a body part and may be sterile prior to placement. The calibration device may include openings or may be modified to expose a region of the sample during use. Spectral images, typically obtained at multiple wavelengths, are made of the calibration device. Algorithms are provided that utilize the spectral images of the calibration device to determine the effects of lighting conditions and sample shape on the sample image to form a calibrated image. Calibrated images produced by these devices and methods can provide information, including clinical data that are less sensitive to lighting and sample shape compared to alternative technologies.
摘要翻译：描述了用于生成三维样本图像的高光谱成像校准装置及其使用方法。校准装置可以呈现期望的成像样品的形状，例如身体部位，并且可以在放置之前是无菌的。校准装置可以包括开口，或者可以被修改以在使用期间暴露样品的区域。通常在多个波长下获得的光谱图像由校准装置制成。提供了利用校准装置的光谱图像来确定照明条件和样品形状对样品图像的影响以形成校准图像的算法。通过这些设备和方法生成的校准图像可以提供信息，包括与替代技术相比对照明和样品形状不太敏感的临床数据。

2. 发明授权

US07013172B2 Hyperspectral imaging calibration device 有权
公开(公告)号：US07013172B2
公开(公告)日：2006-03-14
申请号：US10896232
申请日：2004-07-22
申请人： James R. Mansfield , Jenny E. Freeman , Michael E. Leventon , Michael J. Hopmeier , Derek Brand
发明人： James R. Mansfield , Jenny E. Freeman , Michael E. Leventon , Michael J. Hopmeier , Derek Brand
IPC分类号： A61B5/05
CPC分类号： G01J3/2823 , G01J3/28 , G01J2003/2866
摘要： Hyperspectral imaging calibration devices and methods for their use are described that generate images of three dimensional samples. A calibration device may assume the shape of a desired imaging sample such as a body part and may be sterile prior to placement. The calibration device may include openings or may be modified to expose a region of the sample during use. Spectral images, typically obtained at multiple wavelengths, are made of the calibration device. Algorithms are provided that utilize the spectral images of the calibration device to determine the effects of lighting conditions and sample shape on the sample image to form a calibrated image. Calibrated images produced by these devices and methods can provide information, including clinical data that are less sensitive to lighting and sample shape compared to alternative technologies.

3. 发明授权

US5912720A Technique for creating an ophthalmic augmented reality environment 失效
标题翻译：创造眼科增强现实环境的技术
公开(公告)号：US5912720A
公开(公告)日：1999-06-15
申请号：US22878
申请日：1998-02-12
申请人： Jeffrey W. Berger , Michael E. Leventon , Ron Kikinis
发明人： Jeffrey W. Berger , Michael E. Leventon , Ron Kikinis
IPC分类号： A61B3/135 , A61B3/14 , G06T7/00
CPC分类号： G06T7/0044 , A61B3/145 , G06T7/0028 , A61B3/135 , G06T2207/30041
摘要： An ophthalmic augmented reality environment is developed in order to allow for (a) more precise laser treatment for ophthalmic diseases, (b) teaching, (c) telemedicine, and (d) real-time image measurement, analysis, and comparison. A preferred embodiment of the system is designed around a standard slit-lamp biomicroscope. The microscope is interfaced to a CCD camera, and the image is sent to a video capture board. A single computer workstation coordinates image capture, registration, and display. The captured image is registered with previously stored, montaged photographic and/or angiographic data, with superposition facilitated by fundus-landmark-based fast registration algorithms. The computer then drives a high intensity, VGA resolution video display with adjustable brightness and contrast attached to one of the oculars of the slit-lamp biomicroscope.
摘要翻译：开发眼科增强现实环境，以便（a）更准确地对眼科疾病进行激光治疗，（b）教学，（c）远程医疗和（d）实时图像测量，分析和比较。系统的优选实施例围绕标准裂隙灯生物显微镜设计。显微镜与CCD相机接口，图像发送到视频采集板。单个计算机工作站协调图像捕获，注册和显示。捕获的图像与先前存储的蒙版照相和/或血管造影数据一起登记，通过基于地标的快速注册算法进行叠加。然后，计算机驱动高分辨率的VGA分辨率视频显示，其可调节的亮度和对比度连接到裂隙灯生物显微镜的一个眼睛。

4. 发明授权

US6115052A System for reconstructing the 3-dimensional motions of a human figure from a monocularly-viewed image sequence 失效
标题翻译：用于从单眼观看的图像序列重建人物的三维运动的系统
公开(公告)号：US6115052A
公开(公告)日：2000-09-05
申请号：US23148
申请日：1998-02-12
申请人： William T. Freeman , Michael E. Leventon
发明人： William T. Freeman , Michael E. Leventon
IPC分类号： G01B11/00 , G06T1/00 , G06T13/40 , G06T15/70 , G06K9/62 , G06T15/00
CPC分类号： G06T13/40
摘要： A system is provided for reconstructing the 3-dimensional motions of a hu figure from a monocularly viewed image sequence in which a statistical approach is used coupled with the use of a set of motion capture examples to build a gaussian probability model for short human motion sequences. In a simplified rendering domain, this yields an optimal 3-d estimate of human motion used to create realistic animations given a 2-d temporal sequence. The subject system is also useful to identify which motion modes are difficult to estimate. In one embodiment, a stick figure is overlaid on the input video image to allow manual correction of incorrectly tracked body parts. The utilization of stick figure correction permits manual correction for a more accurate 3-d reconstruction of the motion depicted in the input video sequence. An interactive tracking system processes real video sequences, and achieves good 3-d reconstructions of the human figure motion.
摘要翻译：提供一种用于从单眼观看的图像序列重构人物的三维运动的系统，其中使用统计方法与使用一组运动捕捉示例一起构建用于短人类运动序列的高斯概率模型。在简化的渲染域中，给出了2-d时间序列，这就产生了用于创建逼真动画的人体运动的最佳3-d估计。主题系统也可用于识别哪些运动模式难以估计。在一个实施例中，将棒图叠加在输入视频图像上以允许手动校正不正确跟踪的身体部位。使用棒图校正可以手动校正输入视频序列中描绘的运动的更精确的3维重建。一个交互式跟踪系统处理真实的视频序列，并且实现人体运动的良好的3维重建。

5. 发明授权

US06362821B1 Surface model generation for visualizing three-dimensional objects using multiple elastic surface nets 有权
标题翻译：使用多个弹性表面网可视化三维物体的表面模型生成
公开(公告)号：US06362821B1
公开(公告)日：2002-03-26
申请号：US09225454
申请日：1999-01-06
申请人： Sarah F. F. Gibson , Michael E. Leventon
发明人： Sarah F. F. Gibson , Michael E. Leventon
IPC分类号： G06T1700
CPC分类号： G06T17/20
摘要： A method generates a surface model for a three-dimensional object. The object is scanned from a plurality of directions to produce a volume data for each scanning direction. Each volume data is segmented to extract data associated with the object. The volume data are then registered to a common coordinate frame. After registration, a surface net is initialized for each volume data. The multiple surface nets are relaxed and merge according to the common coordinate frame to generate a renderable surface model.
摘要翻译：一种方法生成三维物体的表面模型。从多个方向扫描物体以产生每个扫描方向的体数据。每个卷数据被分段以提取与对象相关联的数据。然后将体积数据登记到公共坐标系。注册后，为每个卷数据初始化一个曲面网。多个表面网络被放宽并根据公共坐标系进行合并，以生成可渲染的表面模型。

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