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1. 发明授权

US11494882B2 Image processing systems and methods 有权
公开(公告)号：US11494882B2
公开(公告)日：2022-11-08
申请号：US16709099
申请日：2019-12-10
申请人： Light Blue Optics Ltd.
发明人： Raul Benet Ballester , Eyal Katz , Barak Maoz , Adrian James Cable , Euan Christopher Smith , Gareth John McCaughan , Shane Thornton
IPC分类号： G06T5/00 , G06T7/254
摘要： An image capture system comprises a camera configured to capture an image of a whiteboard, or similar, viewed from an acute angle. A linear polarizer has a surface substantially perpendicular to a plane of the board and an axis of polarization substantially perpendicular to the plane of the board or within 30° of the perpendicular to the plane of the board. The camera is configured to capture the image of the board through the polarizer. A normal to the polarizer is directed in a different direction to a direction defined by an optic axis of the camera.

2. 发明申请

US20220247987A1 IMAGE DEMOSAICING TAKING ACCOUNT OF CHROMATIC ABBERATION 有权
公开(公告)号：US20220247987A1
公开(公告)日：2022-08-04
申请号：US17622492
申请日：2020-06-26
申请人： LIGHT BLUE OPTICS LTD
发明人： Gareth John MCCAUGHAN , Euan Christopher SMITH
IPC分类号： H04N9/64 , G06T3/40 , H04N9/04 , H04N9/77
摘要： A method of chromatically-corrected image demosaicing for a sensor with a colour filter array (CFA) such as a Bayer filter array. The demosaicing makes use of local chromatic aberration correction data to determine chromatically-corrected pixel positions for spatial interpolation. In implementations a chromatically-corrected quadratic adjustment is also applied.

3. 发明授权

US10540755B2 Image processing systems and methods 有权
公开(公告)号：US10540755B2
公开(公告)日：2020-01-21
申请号：US15550732
申请日：2016-02-12
申请人： Light Blue Optics Ltd.
发明人： Raul Benet Ballester , Eyal Katz , Barak Maoz , Adrian James Cable , Euan Christopher Smith , Gareth John McCaughan , Shane Thornton
IPC分类号： G06T5/00 , G06T11/60 , H04N5/04 , G06T7/254
摘要： A method of capturing writing or drawing on a whiteboard comprises inputting camera data for a succession of image frames of the whiteboard, and processing data from said image frames to remove parts of the image frames corresponding to parts of a user or user pen writing or drawing on the whiteboard. The processing involves filtering to distinguish between i) motion of the user/user pen parts in the image frames, and ii) writing/drawing image information in the image frames which appears or changes during said writing or drawing but which is thereafter substantially unchanging. The filtered data defines captured writing or drawing from the whiteboard.

4. 发明申请

US20210176247A1 DEVICE AUTHORIZATION SYSTEMS 有权
公开(公告)号：US20210176247A1
公开(公告)日：2021-06-10
申请号：US16764722
申请日：2018-11-19
申请人： Light Blue Optics Ltd.
发明人： Euan Christopher SMITH , Julian HALL
IPC分类号： H04L29/06
摘要： A method of distributed authorization of one or more client applications to one or more connected devices. The method comprises: receiving at a connected device, from a browser executing a client application, a client token and an access request. The client token has been provided to the client application by a process comprising generating one or more client tokens, one for each of one or more client applications (a client token defines permissions for a client application and a domain hosting the client application); signing the client tokens with a private key of a client token issuer, and distributing the client tokens to the client applications; verifying a signature of the client token using a public key of the client token issuer; determining whether the client token grants the client application permission for the access request and, if permission is granted: replying to the browser with a redirect response including an access token granting permission for the client application to access the connected device and identification of the domain hosting the client application from the client token; and executing the redirect response with the browser to make the access token available to the client application for use by the client application when requesting the connected device to perform a task.

5. 发明申请

US20180040111A1 Image Processing Systems and Methods 审中-公开
公开(公告)号：US20180040111A1
公开(公告)日：2018-02-08
申请号：US15550732
申请日：2016-02-12
申请人： Light Blue Optics Ltd.
发明人： Raul BENET BALLESTER , Eyal KATZ , Barak MAOZ , Adrian James CABLE , Euan Christopher SMITH , Gareth John MCCAUGHAN , Shane Thornton
IPC分类号： G06T5/00 , G06T7/254
摘要： We describe a method of capturing writing or drawing on a whiteboard. The method comprises: inputting camera data for a succession of image frames, wherein the camera data is from a camera directed towards the whiteboard and the image frames comprise successive images of the whiteboard from the camera; and user filter processing data from said image frames to remove parts of said image frames corresponding to parts of a user or user pen writing or drawing on said whiteboard. The user-filter processing comprises filtering to distinguish between motion of the user/user pen parts in the image frames and writing/drawing image information in the image frames which appears or changes during said writing or drawing but which is thereafter substantially unchanging. The method outputs writing/drawing data from the user filter-processing, this defining captured writing or drawing from the whiteboard.

6. 发明申请

US20150212653A1 Scanning Touch Systems 审中-公开
标题翻译：扫描触摸系统
公开(公告)号：US20150212653A1
公开(公告)日：2015-07-30
申请号：US14421391
申请日：2013-08-13
申请人： Light Blue Optics Ltd
发明人： Adrian James Cable , Paul Richard , Euan Christopher Smith , Gareth John McCahghan , Peter William Tudor Mash
IPC分类号： G06F3/042
CPC分类号： G06F3/0423
摘要： Various approaches to touch sensing systems are disclosed As an example, a touch sensing system is disclosed that includes: an optical beam source to provide an optical beam; a pair of controllable beam deflectors comprising at least first and second beam deflectors, wherein the first beam deflector is configured to deflect the optical beam through a first angle towards a touch sensing region, and wherein the second beam deflector is configured to deflect scattered light from an object in the touch sensing region through a second angle; a detector, in particular a detector array; and an imaging system to image the deflected scattered light from the second beam deflector onto the detector array. The first and second beam deflectors are controlled in tandem to scan the touch sensing region.
摘要翻译：公开了触摸感测系统的各种方法作为示例，公开了一种触摸感测系统，其包括：提供光束的光束源; 一对可控射束偏转器，其包括至少第一和第二光束偏转器，其中第一光束偏转器被配置为使光束朝向触摸感测区域偏转第一角度，并且其中第二光束偏转器被配置为偏转来自通过第二角度在触摸感测区域中的对象; 检测器，特别是检测器阵列; 以及成像系统，用于将来自第二光束偏转器的偏转的散射光成像到检测器阵列上。串联地控制第一和第二光束偏转器以扫描触摸感测区域。

7. 发明申请

US20150049063A1 Touch Sensing Systems 审中-公开
标题翻译：触摸感应系统
公开(公告)号：US20150049063A1
公开(公告)日：2015-02-19
申请号：US14388341
申请日：2013-03-25
申请人： Light Blue Optics Ltd
发明人： Euan Christopher Smith , Paul Richard Routley , Lilian Lacoste
IPC分类号： G06F3/042
CPC分类号： G06F3/0421 , G06F3/0425 , G06F3/0426 , G06F2203/04106
摘要： A touch sensing system, for sensing the position of at least one object with respect to surface, the system comprising: a first, 2D touch sensing subsystem to detect a first location of said object with respect to a surface and to provide first location data; a second, object position sensing subsystem to detect a second location of said object, wherein said second location of said object is not constrained by said surface, and to provide second location data; a system to associate said first location data and said second location and to determine additional object-related data from said association; and a system to report position data for said object, wherein said position data comprises data dependent on at least one of said first and second locations and on said additional object-related data.
摘要翻译：一种用于感测相对于表面的至少一个物体的位置的触摸感测系统，所述系统包括：第一2D触摸感测子系统，用于检测所述物体相对于表面的第一位置并提供第一位置数据; 第二对象位置感测子系统，用于检测所述对象的第二位置，其中所述对象的所述第二位置不受所述表面约束，并且提供第二位置数据; 关联所述第一位置数据和所述第二位置并且从所述关联确定附加的对象相关数据的系统; 以及用于报告所述对象的位置数据的系统，其中所述位置数据包括取决于所述第一和第二位置中的至少一个以及所述附加对象相关数据的数据。

8. 发明申请

US20140247249A1 Touch Sensitive Display Devices 审中-公开
标题翻译：触摸敏感显示设备
公开(公告)号：US20140247249A1
公开(公告)日：2014-09-04
申请号：US14349956
申请日：2012-10-08
申请人： Light Blue Optics Ltd
发明人： Euan Christopher Smith , Jonathan Freeman
IPC分类号： G06F3/042 , G06F3/041
CPC分类号： G06F3/0425 , G06F3/0418 , G06F3/0426
摘要： Some embodiments of the present invention provide touch sensitive image display devices including: an image projector to project a displayed image onto a surface; a touch sensor light source to project a plane of light above the displayed image; a camera to capture a touch sense image from light scattered from the plane of light by an approaching object; and a signal processor to process the touch sense image to identify a location of the object. The light path to the touch sensor camera includes a keystone-distortion compensating topical element, in particular a convex curved aspherical minor.
摘要翻译：本发明的一些实施例提供了触敏图像显示装置，包括：将显示图像投影到表面上的图像投影仪; 触摸传感器光源，用于投影所显示图像上方的平面; 相机，用于从靠近的物体从光平面散射的光捕获触摸感测图像; 以及处理所述触摸感测图像以识别所述对象的位置的信号处理器。触摸传感器摄像机的光路包括梯形失真补偿局部元件，特别是凸形弯曲非球面微型。

9. 发明授权

US10303305B2 Scanning touch systems 有权
公开(公告)号：US10303305B2
公开(公告)日：2019-05-28
申请号：US14421391
申请日：2013-08-13
申请人： Light Blue Optics Ltd
发明人： Adrian James Cable , Paul Richard Routley , Euan Christopher Smith , Gareth John McCaughan , Peter William Tudor Mash
IPC分类号： G06F3/042
摘要： Various approaches to touch sensing systems are disclosed As an example, a touch sensing system is disclosed that includes: an optical beam source to provide an optical beam; a pair of controllable beam deflectors comprising at least first and second beam deflectors, wherein the first beam deflector is configured to deflect the optical beam through a first angle towards a touch sensing region, and wherein the second beam deflector is configured to deflect scattered light from an object in the touch sensing region through a second angle; a detector, in particular a detector array; and an imaging system to image the deflected scattered light from the second beam deflector onto the detector array. The first and second beam deflectors are controlled in tandem to scan the touch sensing region.

10. 发明申请

US20180108121A1 Timeline Image Capture Systems and Methods 审中-公开
公开(公告)号：US20180108121A1
公开(公告)日：2018-04-19
申请号：US15831070
申请日：2017-12-04
申请人： Light Blue Optics Ltd.
发明人： Gareth John McCaughan , Euan Christopher Smith , Raul John Benet Ballester , Nicholas John Hollinghurst
IPC分类号： G06T5/00 , G06T11/60 , H04N5/04
CPC分类号： G06T5/006 , G06K9/00335 , G06K9/00375 , G06K2009/363 , G06T5/002 , G06T5/005 , G06T7/254 , G06T11/60 , H04N5/04
摘要： Various approaches related to capturing content of erasable boards are discussed herein.

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