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1. 发明授权

US09392984B2 Computed tomography system with dynamic bowtie filter 有权
标题翻译：计算机断层摄影系统与动态蝴蝶结过滤器
公开(公告)号：US09392984B2
公开(公告)日：2016-07-19
申请号：US14125926
申请日：2012-06-14
申请人： Norbert J. Pelc , Scott Hsieh
发明人： Norbert J. Pelc , Scott Hsieh
IPC分类号： A61B6/06 , G21K1/10 , G02B5/20 , A61B6/00 , G02B5/22 , G02B26/02 , A61B6/03
CPC分类号： A61B6/4035 , A61B6/032 , A61B6/06 , A61B6/405 , A61B6/4241 , A61B6/44 , A61B6/547 , A61B6/583 , G02B5/201 , G02B5/22 , G02B26/02 , G21K1/10
摘要： A CT apparatus for scanning an object is provided. An x-ray source is provided, wherein the x-ray source provides a collimated x-ray beam with a cross-section with a length and thickness. A plurality of wedges is provided between the source and object. An actuator is connected to the wedges for moving the wedges substantially perpendicular to the length of the cross-section of the collimated x-ray beam. An x-ray detector is located on an opposite side of the object from the x-ray source and is for detecting x-rays that pass through the object and the plurality of wedges. A gantry rotates the x-ray source, the plurality of wedges, and the x-ray detector around an axis of rotation.
摘要翻译：提供一种用于扫描物体的CT装置。提供了一种x射线源，其中x射线源提供具有长度和厚度的横截面的准直X射线束。在源和物体之间提供多个楔形件。致动器连接到楔块，用于基本上垂直于准直X射线束横截面的长度移动楔块。 X射线检测器位于物体与x射线源相反的一侧，用于检测穿过物体和多个楔形物的X射线。台架围绕旋转轴旋转x射线源，多个楔形物和x射线探测器。

2. 发明授权

US10182223B2 Three-dimensional imaging system 有权
公开(公告)号：US10182223B2
公开(公告)日：2019-01-15
申请号：US13820116
申请日：2010-11-19
申请人： Morteza Gharib , Alexei Harvard , Scott Hsieh , Jian Lu
发明人： Morteza Gharib , Alexei Harvard , Scott Hsieh , Jian Lu
IPC分类号： H04N13/207 , H04N13/02 , G06T7/70 , G06T7/593
摘要： Hardware and software configurations, optionally, for performing profilometry of an object are disclosed. An advantageous imaging device is described. An advantageous approach to determining imager position is also described. Each aspect described may be used independently of the other. Moreover, the teaching may find use in other fields including velocimetry, etc.

3. 发明申请

US20110074932A1 Accurate 3D Object Reconstruction Using a Handheld Device with a Projected Light Pattern 有权
标题翻译：使用具有投影光图案的手持设备进行精确的3D对象重建
公开(公告)号：US20110074932A1
公开(公告)日：2011-03-31
申请号：US12869919
申请日：2010-08-27
申请人： Morteza Gharib , Jian Lu , Alexei Harvard , Scott Hsieh
发明人： Morteza Gharib , Jian Lu , Alexei Harvard , Scott Hsieh
IPC分类号： H04N13/02
CPC分类号： G01B11/25 , G01B11/16 , G01B11/167 , G01B11/22 , G01B11/2513 , G01B11/2545 , G06T7/521 , G06T7/55 , H04N13/189 , H04N13/221
摘要： A lens and aperture device for determining 3D information. A projector projects an optical pattern toward a surface. The camera has at least two off-axis apertures thereon, arranged to obtain an image of the projected pattern including defocused information. The camera is movable between different positions to image the surface from said different positions, and the projector is at a specified angle of at least 5° relative to said camera. A processor carries out a first operation using information received through the apertures to determine a pose of said camera, and to determine three dimensional information about the object based on a degree of deformation of said optical pattern on said surface indicative of a three dimensional surface. An embodiment projects a grid of laser dots and uses laser-dot defocusing for approximate Z and thus grid correspondence, which can greatly increase the working depth of the system.
摘要翻译：用于确定3D信息的透镜和光圈装置。投影仪将光学图案投影到表面。相机具有至少两个离轴孔，布置成获得包括散焦信息的投影图案的图像。相机可以在不同位置之间移动，以从所述不同位置对表面进行成像，并且投影仪相对于所述照相机处于至少5°的指定角度。处理器使用通过孔接收的信息来执行第一操作，以确定所述相机的姿态，并且基于表示三维表面的所述表面上的所述光学图案的变形程度来确定关于对象的三维信息。一个实施例投射一个激光点网格，并使用激光点散焦近似Z，从而可以大大增加系统的工作深度。

4. 发明申请

US20160328836A1 X-RAY ANTI-SCATTER GRID WITH VARYING GRID RATIO 审中-公开
标题翻译：具有变化网格比的X射线抗散射网格
公开(公告)号：US20160328836A1
公开(公告)日：2016-11-10
申请号：US15073909
申请日：2016-03-18
申请人： Scott Hsieh
发明人： Scott Hsieh
IPC分类号： G06T7/00 , G06T11/00 , G21K1/10 , G06T3/40 , A61B6/03 , A61B6/00
CPC分类号： A61B6/5282 , A61B6/4291 , G21K1/025
摘要： A device for estimating scatter in X-ray imaging is described. An anti-scatter grid with varying grid ratio is used in conjunction with an X-ray detector. The anti-scatter grid comprises attenuating lamellae that block scattered radiation. The anti-scatter grid contains regions of lesser or greater scatter rejection efficiency, which can be achieved by variations in the grid ratio. Contrast between these regions can be used to estimate residual scatter content. A method for estimating scatter from this device is further described.
摘要翻译：描述了用于估计X射线成像中的散射的装置。与X射线检测器结合使用具有不同栅格比的反散射栅格。防散射网格包括衰减阻挡散射辐射的薄片。防散射栅格包含较小或更大的散射抑制效率的区域，这可以通过电网比率的变化来实现。这些区域之间的对比可用于估计残留散射含量。进一步描述了用于从该装置估计散射的方法。

5. 发明申请

US20140368617A1 DEFOCUSING FEATURE MATCHING SYSTEM TO MEASURE CAMERA POSE WITH INTERCHANGEABLE LENS CAMERAS 审中-公开
标题翻译：使用可互换镜头相机测量相机位置的特征匹配系统
公开(公告)号：US20140368617A1
公开(公告)日：2014-12-18
申请号：US14303988
申请日：2014-06-13
申请人： Morteza Gharib , Jian Lu , Scott Hsieh , Francisco Pereira , Alexei Harvard , David Jeon
发明人： Morteza Gharib , Jian Lu , Scott Hsieh , Francisco Pereira , Alexei Harvard , David Jeon
IPC分类号： H04N13/02 , G03B17/56
CPC分类号： H04N13/204 , G02B7/34 , G03B9/02 , G03B17/14 , G03B17/565 , G03B19/12 , G03B35/00 , H04N5/235 , H04N5/2356 , H04N9/045
摘要： A lens and aperture device for determining 3D information. An SLR camera has a lens and aperture that allows the SLR camera to determine defocused information.
摘要翻译：用于确定3D信息的透镜和光圈装置。单反相机具有透镜和光圈，允许单反相机确定散焦信息。

6. 发明申请

US20110037832A1 Defocusing Feature Matching System to Measure Camera Pose with Interchangeable Lens Cameras 有权
标题翻译：散焦特征匹配系统用可互换镜头相机测量相机姿势
公开(公告)号：US20110037832A1
公开(公告)日：2011-02-17
申请号：US12853181
申请日：2010-08-09
申请人： Morteza Gharib , Jian Lu , Scott Hsieh , Francisco Pereira , Alexei Harvard , David Jeon
发明人： Morteza Gharib , Jian Lu , Scott Hsieh , Francisco Pereira , Alexei Harvard , David Jeon
IPC分类号： H04N15/00 , G02B13/16
CPC分类号： H04N13/204 , G02B7/34 , G03B9/02 , G03B17/14 , G03B17/565 , G03B19/12 , G03B35/00 , H04N5/235 , H04N5/2356 , H04N9/045
摘要： A lens and aperture device for determining 3D information. An SLR camera has a lens and aperture that allows the SLR camera to determine defocused information.
摘要翻译：用于确定3D信息的透镜和光圈装置。单反相机具有透镜和光圈，允许单反相机确定散焦信息。

7. 发明授权

US09993219B2 X-ray anti-scatter grid with varying grid ratio 有权
公开(公告)号：US09993219B2
公开(公告)日：2018-06-12
申请号：US15073909
申请日：2016-03-18
申请人： Scott Hsieh
发明人： Scott Hsieh
IPC分类号： A61B6/00 , G21K1/02 , G06T11/00
CPC分类号： A61B6/5282 , A61B6/4291 , G21K1/025
摘要： A device for estimating scatter in X-ray imaging is described. An anti-scatter grid with varying grid ratio is used in conjunction with an X-ray detector. The anti-scatter grid comprises attenuating lamellae that block scattered radiation. The anti-scatter grid contains regions of lesser or greater scatter rejection efficiency, which can be achieved by variations in the grid ratio. Contrast between these regions can be used to estimate residual scatter content. A method for estimating scatter from this device is further described.

8. 发明授权

US08773514B2 Accurate 3D object reconstruction using a handheld device with a projected light pattern 有权
标题翻译：使用具有投影光图案的手持设备进行精确的3D对象重建
公开(公告)号：US08773514B2
公开(公告)日：2014-07-08
申请号：US12869919
申请日：2010-08-27
申请人： Morteza Gharib , Jian Lu , Alexei Harvard , Scott Hsieh
发明人： Morteza Gharib , Jian Lu , Alexei Harvard , Scott Hsieh
IPC分类号： H04N13/02 , G01B11/25 , G01B11/16 , G01B11/22 , H04N13/00
CPC分类号： G01B11/25 , G01B11/16 , G01B11/167 , G01B11/22 , G01B11/2513 , G01B11/2545 , G06T7/521 , G06T7/55 , H04N13/189 , H04N13/221
摘要： A camera has a lens and aperture device for determining 3D information. A projector projects an optical pattern toward a surface. The camera has at least two off-axis apertures thereon, arranged to obtain an image of the projected pattern including defocused information. The camera is movable between different positions to image the surface from said different positions, and the projector is at a specified angle of at least 5° relative to said camera. A processor carries out a first operation using information received through the apertures to determine a pose of said camera, and to determine three dimensional information about the object based on a degree of deformation of said optical pattern on said surface indicative of a three dimensional surface. An embodiment projects a grid of laser dots and uses laser-dot defocusing for approximate Z and thus grid correspondence, which can greatly increase the working depth of the system.
摘要翻译：相机具有用于确定3D信息的透镜和光圈装置。投影仪将光学图案投影到表面。相机具有至少两个离轴孔，布置成获得包括散焦信息的投影图案的图像。相机可以在不同位置之间移动，以从所述不同位置对表面进行成像，并且投影仪相对于所述照相机处于至少5°的指定角度。处理器使用通过孔接收的信息来执行第一操作，以确定所述相机的姿态，并且基于表示三维表面的所述表面上的所述光学图案的变形程度来确定关于对象的三维信息。一个实施例投射一个激光点网格，并使用激光点散焦近似Z，从而可以大大增加系统的工作深度。

9. 发明授权

US08773507B2 Defocusing feature matching system to measure camera pose with interchangeable lens cameras 有权
标题翻译：散焦特征匹配系统用可互换镜头相机测量相机姿态
公开(公告)号：US08773507B2
公开(公告)日：2014-07-08
申请号：US12853181
申请日：2010-08-09
申请人： Morteza Gharib , Jian Lu , Scott Hsieh , Francisco Pereira , Alexei Harvard , David Jeon
发明人： Morteza Gharib , Jian Lu , Scott Hsieh , Francisco Pereira , Alexei Harvard , David Jeon
IPC分类号： H04N13/02
CPC分类号： H04N13/204 , G02B7/34 , G03B9/02 , G03B17/14 , G03B17/565 , G03B19/12 , G03B35/00 , H04N5/235 , H04N5/2356 , H04N9/045
摘要： A lens and aperture device for determining 3D information. An SLR camera has a lens and aperture that allows the SLR camera to determine defocused information.
摘要翻译：用于确定3D信息的透镜和光圈装置。单反相机具有透镜和光圈，允许单反相机确定散焦信息。

10. 发明申请

US20130235165A1 THREE-DIMENSIONAL IMAGING SYSTEM 审中-公开
标题翻译：三维成像系统
公开(公告)号：US20130235165A1
公开(公告)日：2013-09-12
申请号：US13820116
申请日：2010-11-19
申请人： Morteza Gharib , Alexei Harvard , Scott Hsieh , Jian Lu
发明人： Morteza Gharib , Alexei Harvard , Scott Hsieh , Jian Lu
IPC分类号： H04N13/02
CPC分类号： H04N13/207 , G06T7/593 , G06T7/70 , G06T2207/10024 , G06T2207/10028 , G06T2207/20016 , G06T2207/30036 , G06T2207/30244 , H04N13/214
摘要： Hardware and software configurations, optionally, for performing profilometry of an object are disclosed. An advantageous imaging device is described. An advantageous approach to determining imager position is also described. Each aspect described may be used independently of the other. Moreover, the teaching may find use in other fields including velocimetry, etc.
摘要翻译：公开了用于执行对象轮廓测量的硬件和软件配置。描述了一种有利的成像装置。还描述了确定成像器位置的有利方法。所描述的每个方面可以独立于另一方使用。此外，教学可用于其他领域，包括测速仪等。

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