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1. 发明授权

US09329700B2 Interactive system with successively activated illumination sources 有权
标题翻译：具有相继激活的照明源的交互式系统
公开(公告)号：US09329700B2
公开(公告)日：2016-05-03
申请号：US13522078
申请日：2011-01-14
申请人： Grant McGibney , David Holmgren , Lawrence Bruce Hewitt
发明人： Grant McGibney , David Holmgren , Lawrence Bruce Hewitt
IPC分类号： G06F3/03 , G06F3/042
CPC分类号： G06F3/0308 , G06F3/0428
摘要： An illumination assembly for an interactive input system (20), comprises at least one imaging device (60) capturing image frames of a region of interest; a plurality of illumination sources (84a, 84b, 84c) associated with the imaging device and being located at different positions relative to the imaging device, the illumination sources providing illumination to the region of interest; and a controller (72) communicating with the illumination sources, the controller conditioning the illumination sources so that the illumination sources provide illumination to the region of interest in succession, the timing of image frame capture by the imaging device being coordinated with the illumination pattern of the illumination sources.
摘要翻译：一种用于交互式输入系统（20）的照明组件，包括：至少一个成像设备（60），其捕获感兴趣区域的图像帧; 与成像装置相关联并位于相对于成像装置的不同位置的多个照明源（84a，84b，84c），所述照明源向感兴趣的区域提供照明; 以及与照明源通信的控制器（72），所述控制器调节所述照明源，使得所述照明源依次向所述感兴趣区域提供照明，所述成像设备的图像帧捕获的定时与所述照明模式的照明模式协调照明源。

2. 发明授权

US07692625B2 Camera-based touch system 有权
标题翻译：基于摄像头的触摸系统
公开(公告)号：US07692625B2
公开(公告)日：2010-04-06
申请号：US10312983
申请日：2001-07-05
申请人： Gerald Morrison , David Holmgren
发明人： Gerald Morrison , David Holmgren
IPC分类号： G09G5/00
CPC分类号： G06F3/0428
摘要： A camera-based touch system (50) includes a passive touch surface (60) and at least two cameras (63) associated with the touch surface. The at least two cameras (63) have overlapping fields of view (FOV) encompassing the touch surface. The at least two cameras (63) acquire images of the touch surface from different locations and generate image data. A processor (54) receives and processes image data generated by the at least two cameras to determine the location of the pointer relative to the touch surface when the pointer is captured in images acquired by the at least two cameras. Actual pointer contact with the touch surface and pointer hover above the touch surface can be determined.
摘要翻译：基于照相机的触摸系统（50）包括与触摸表面相关联的无源触摸表面（60）和至少两个相机（63）。所述至少两个相机（63）具有覆盖所述触摸表面的重叠视场（FOV）。至少两个相机（63）从不同位置获取触摸表面的图像并产生图像数据。处理器（54）接收并处理由至少两个照相机产生的图像数据，以便当在至少两个相机获取的图像中捕获指针时，确定指针相对于触摸表面的位置。可以确定与触摸表面和指针悬停在触摸表面上方的实际指针接触。

3. 发明申请

US20140022448A1 INTERACTIVE SYSTEM WITH SUCCESSIVELY ACTIVATED ILLUMINATION SOURCES 有权
标题翻译：具有连续激活的照明源的交互系统
公开(公告)号：US20140022448A1
公开(公告)日：2014-01-23
申请号：US13522078
申请日：2011-01-14
申请人： Grant McGibney , David Holmgren , Lawrence Bruce Hewitt
发明人： Grant McGibney , David Holmgren , Lawrence Bruce Hewitt
IPC分类号： G06F3/03
CPC分类号： G06F3/0308 , G06F3/0428
摘要： An illumination assembly for an interactive input system (20), comprises at least one imaging device (60) capturing image frames of a region of interest; a plurality of illumination sources (84a, 84b, 84c) associated sociated with the imaging device and being located at different positions relative to the imaging device, the illumination sources providing illumination to the region of interest; and a controller (72) communicating with the illumination sources, the controller conditioning the illumination sources so that the illumination sources provide illumination to the region of interest in succession, the timing of image frame capture by the imaging device being coordinated with the illumination pattern of the illumination sources.
摘要翻译：一种用于交互式输入系统（20）的照明组件，包括：至少一个成像设备（60），其捕获感兴趣区域的图像帧; 与成像装置相关联并且相对于成像装置位于不同位置的多个照明源（84a，84b，84c），所述照明源向感兴趣的区域提供照明; 以及与照明源通信的控制器（72），所述控制器调节所述照明源，使得所述照明源依次向所述感兴趣区域提供照明，所述成像设备的图像帧捕获的定时与所述照明模式的照明模式协调照明源。

4. 发明申请

US20120250936A1 INTERACTIVE INPUT SYSTEM AND METHOD 有权
标题翻译：互动输入系统和方法
公开(公告)号：US20120250936A1
公开(公告)日：2012-10-04
申请号：US13077637
申请日：2011-03-31
申请人： DAVID HOLMGREN
发明人： DAVID HOLMGREN
IPC分类号： G06K9/00
CPC分类号： G06F3/042 , G06F2203/04104 , G06F2203/04108
摘要： A method of determining locations of at least two pointers in a captured image frame comprises generating a vertical intensity profile (VIP) from the captured image frame, the VIP comprising peaks generally corresponding to the at least two pointers; determining if the peaks are closely spaced and, if the peaks are closely spaced, fitting a curve to the VIP; analyzing the fitted curve to determine peak locations of the fitted curve; and registering the peak locations as the pointer locations.
摘要翻译：确定捕获的图像帧中的至少两个指针的位置的方法包括从所捕获的图像帧生成垂直强度分布（VIP），所述VIP包括通常对应于所述至少两个指针的峰值; 确定峰是否紧密间隔，如果峰紧密间隔，则将曲线拟合到VIP; 分析拟合曲线以确定拟合曲线的峰值位置; 并将峰值位置注册为指针位置。

5. 发明申请

US20050248539A1 Apparatus and method for detecting a pointer relative to a touch surface 有权
标题翻译：用于相对于触摸表面检测指针的装置和方法
公开(公告)号：US20050248539A1
公开(公告)日：2005-11-10
申请号：US10838536
申请日：2004-05-05
申请人： Gerald Morrison , David Holmgren
发明人： Gerald Morrison , David Holmgren
IPC分类号： G06F3/041 , G06F3/042 , G09G5/00
CPC分类号： G06F3/0428 , G06F3/0418 , G06T7/73 , G06T7/85 , G06T2207/10012 , G06T2207/20092 , G06T2207/30244
摘要： An apparatus for detecting a pointer relative to a touch surface includes at least two spaced imaging assemblies having overlapping fields of view encompassing the touch surface. The imaging assemblies see the touch surface in three-dimensions as a perspective view. The imaging assemblies acquire overlapping images from different locations. A processor receives and processes image data generated by at least one of the imaging assemblies to determine the location of the pointer relative to the touch surface.
摘要翻译：用于相对于触摸表面检测指针的装置包括至少两个间隔开的成像组件，其具有覆盖触摸表面的重叠视场。成像组件以三维方式看到触摸表面为透视图。成像组件从不同位置获取重叠图像。处理器接收并处理由至少一个成像组件产生的图像数据，以确定指针相对于触摸表面的位置。

6. 发明授权

US09176627B2 Camera-based touch system 有权
标题翻译：基于摄像头的触摸系统
公开(公告)号：US09176627B2
公开(公告)日：2015-11-03
申请号：US12753017
申请日：2010-04-01
申请人： Gerald Morrison , David Holmgren
发明人： Gerald Morrison , David Holmgren
IPC分类号： G09G5/00 , G06F3/042
CPC分类号： G06F3/0428
摘要： A camera-based touch system (50) includes a passive touch surface (60) and at least two cameras (63) associated with the touch surface. The at least two cameras (63) have overlapping fields of view (FOV) encompassing the touch surface. The at least two cameras (63) acquire images of the touch surface from different locations and generate image data. A processor (54) receives and processes image data generated by the at least two cameras to determine the location of the pointer relative to the touch surface when the pointer is captured in images acquired by the at least two cameras. Actual pointer contact with the touch surface and pointer hover above the touch surface can be determined.
摘要翻译：基于照相机的触摸系统（50）包括与触摸表面相关联的无源触摸表面（60）和至少两个相机（63）。所述至少两个相机（63）具有覆盖所述触摸表面的重叠视场（FOV）。至少两个相机（63）从不同位置获取触摸表面的图像并产生图像数据。处理器（54）接收并处理由至少两个照相机产生的图像数据，以便当在至少两个相机获取的图像中捕获指针时，确定指针相对于触摸表面的位置。可以确定与触摸表面和指针悬停在触摸表面上方的实际指针接触。

7. 发明授权

US06919880B2 Calibrating camera offsets to facilitate object position determination using triangulation 有权
标题翻译：使用三角测量校准相机偏移量以便于对象位置确定
公开(公告)号：US06919880B2
公开(公告)日：2005-07-19
申请号：US09870698
申请日：2001-06-01
申请人： Gerald Morrison , David Holmgren
发明人： Gerald Morrison , David Holmgren
IPC分类号： G01B11/00 , G01C3/06 , G06F3/033 , G06F3/041 , G06F3/042 , G09G5/00
CPC分类号： G06F3/0418 , G06F3/0428
摘要： A touch system includes a reference frame, and at least two cameras having fields of view that overlap within the reference frame. The position of an object relative to the reference frame is determined from captured images of the object based on triangulation. The fields of view of the at least two cameras are rotated with respect to the coordinate system of the reference frame to define offset angles. The touch system is calibrated by: capturing an image of the object using each the at least two cameras at least one location within the reference frame; and for each location: determining the position of the object within each image, the position of the object within each image being represented by an angle φ, the angle being equal to the angle formed between an extremity of the field of view extending beyond the reference frame and a line extending from the camera that intersects the object within the image; and mathematically calculating the offset angles of the at least two cameras based on the angle determined for each image and the position of the at least two cameras relative to the coordinate system assigned to the reference frame.
摘要翻译：触摸系统包括参考框架和至少两个具有在参考框架内重叠的视场的照相机。基于三角测量，从对象的捕获图像确定对象相对于参考帧的位置。至少两个相机的视野相对于参考系的坐标系旋转以限定偏移角。所述触摸系统通过以下步骤进行校准：使用所述至少两个相机中的至少一个位置在所述参考帧内捕获所述对象的图像; 并且对于每个位置：确定每个图像内的对象的位置，每个图像内的对象的位置由角度phi表示，该角度等于在延伸超过参考的视场的末端之间形成的角度框架和从相机延伸的线与图像内的对象相交; 并且基于为每个图像确定的角度和所述至少两个照相机相对于分配给参考帧的坐标系的位置来数学地计算所述至少两个照相机的偏移角。

8. 发明授权

US08872772B2 Interactive input system and pen tool therefor 有权
标题翻译：交互式输入系统及笔工具
公开(公告)号：US08872772B2
公开(公告)日：2014-10-28
申请号：US12752915
申请日：2010-04-01
申请人： Sean Thompson , Grant McGibney , David Holmgren
发明人： Sean Thompson , Grant McGibney , David Holmgren
IPC分类号： G06F3/041 , G06F3/042 , G06F3/0354
CPC分类号： G06F3/0428 , G06F3/03545
摘要： A pen tool for use with a machine vision interactive input system comprises an elongate body and a tip arrangement at one end of the body, an end surface of the body at least partially about the tip arrangement carrying light reflective material that is visible to at least one imaging assembly of the interactive input system when the pen tool is angled.
摘要翻译：一种用于机器视觉交互式输入系统的笔工具，包括细长主体和位于主体一端的尖端装置，该主体的端表面至少部分地围绕至少部分地围绕至少可见的光反射材料当笔工具成角度时，交互式输入系统的一个成像组件。

9. 发明申请

US20120249422A1 INTERACTIVE INPUT SYSTEM AND METHOD 审中-公开
标题翻译：互动输入系统和方法
公开(公告)号：US20120249422A1
公开(公告)日：2012-10-04
申请号：US13077613
申请日：2011-03-31
申请人： EDWARD TSE , MICHAEL ROUNDING , DAN GREENBLATT , DAVID HOLMGREN
发明人： EDWARD TSE , MICHAEL ROUNDING , DAN GREENBLATT , DAVID HOLMGREN
IPC分类号： G09G5/08
CPC分类号： G06F3/017 , G06F3/0304
摘要： An interactive input system comprises an interactive surface, an illumination source projecting light onto the interactive surface such that a shadow is cast onto the interactive surface when a gesture is made by an object positioned between the illumination source and the interactive surface, at least one imaging device capturing images of a three-dimensional (3D) space in front of the interactive surface, and processing structure processing captured images to detect the shadow and object therein, and determine therefrom whether the gesture was performed within or beyond a threshold distance from the interactive surface and execute a command associated with the gesture.
摘要翻译：交互式输入系统包括交互表面，照明源将光投射到交互式表面上，使得当由位于照明源和交互表面之间的物体进行手势时，阴影投射到交互式表面上，至少一个成像设备捕获在交互式表面之前的三维（3D）空间的图像，以及处理结构处理捕获的图像以检测其中的阴影和对象，并从其确定手势是否在超出与交互式的阈值距离之内执行表面并执行与该手势相关联的命令。

10. 发明申请

US20110242006A1 INTERACTIVE INPUT SYSTEM AND PEN TOOL THEREFOR 有权
标题翻译：交互式输入系统及其工具
公开(公告)号：US20110242006A1
公开(公告)日：2011-10-06
申请号：US12752915
申请日：2010-04-01
申请人： SEAN THOMPSON , Grant McGibney , David Holmgren
发明人： SEAN THOMPSON , Grant McGibney , David Holmgren
IPC分类号： G06F3/033 , G06F3/041
CPC分类号： G06F3/0428 , G06F3/03545
摘要： A pen tool for use with a machine vision interactive input system comprises an elongate body and a tip arrangement at one end of the body, an end surface of the body at least partially about the tip arrangement carrying light reflective material that is visible to at least one imaging assembly of the interactive input system when the pen tool is angled.
摘要翻译：一种用于机器视觉交互式输入系统的笔工具，包括细长主体和位于主体一端的尖端装置，该主体的端表面至少部分地围绕至少部分地围绕至少可见的光反射材料当笔工具成角度时，交互式输入系统的一个成像组件。

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