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1.发明申请Data Detection For Visible Light Communications Using Conventional Camera Sensor 有权使用传统相机传感器的可见光通信的数据检测公开(公告)号：US20120281987A1
公开(公告)日：2012-11-08
申请号：US13520589
申请日：2011-01-13
IPC分类号： H04B10/10
CPC分类号： H05B37/0272 , H05B37/029
摘要： The invention relates to a detection system for determining data embedded into the light output of a light source in a form of a repeating sequence of N symbols. The detection system includes a camera and a processing unit. The camera is configured to acquire a series of images of the scene via specific open/closure patterns of the shutter. The processing unit is configured to process the acquired series of images to determine the repeating sequence of N symbols. By carefully triggering when a shutter of the camera is open to capture the different symbols of the encoded light within each frame time of a camera, a conventional camera with a relatively long frame time may be employed. Therefore, the techniques presented herein are suitable for detecting the invisible “high frequency” coded light while using less expensive cameras as those used in the prior art.
摘要翻译： 本发明涉及一种用于以N个符号的重复序列的形式确定嵌入到光源的光输出中的数据的检测系统。 检测系统包括照相机和处理单元。 相机被配置为通过快门的特定打开/关闭图案来获取场景的一系列图像。 处理单元被配置为处理所获取的一系列图像以确定N个符号的重复序列。 通过在相机的快门被打开以捕捉相机的每个帧时间内的编码光的不同符号时，通过小心地触发，可以采用具有相对长的帧时间的常规相机。 因此，本文中提出的技术适用于在使用比现有技术中使用的较便宜的照相机时检测不可见的高频编码光。
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公开(公告)号：US20120281879A1
公开(公告)日：2012-11-08
申请号：US13520588
申请日：2011-01-11
申请人： Ruud Vlutters , Frederik Jan De Bruijn , Lorenzo Feri , Tim Corneel Wilhelmus Schenk , Remco Theodorus Johannes Muijs
发明人： Ruud Vlutters , Frederik Jan De Bruijn , Lorenzo Feri , Tim Corneel Wilhelmus Schenk , Remco Theodorus Johannes Muijs
CPC分类号： H05B37/02 , G06K9/2036
摘要： The invention relates to a detection system for determining whether a light contribution of a light source is present at a selected position within a 2D scene. The light contribution includes an embedded code comprising a repeating sequence of N symbols. The detection system includes a camera and a processing unit. The camera is configured to acquire a series of images of the scene via specific open/closure patterns of the shutter. Each image includes a plurality of pixels, each pixel representing an intensity of the light output of the light source at a different physical position within the scene. The processing unit is configured to process the acquired series of images to determine whether the light contribution of the first light source is present at the selected physical position within the scene by e.g. correlating a sequence of pixels of the acquired series corresponding to the selected physical position with the first sequence of N symbols.
摘要翻译： 本发明涉及一种用于确定在2D场景内的选定位置是否存在光源的光贡献的检测系统。 光贡献包括包括N个符号的重复序列的嵌入代码。 检测系统包括照相机和处理单元。 相机被配置为通过快门的特定打开/关闭图案来获取场景的一系列图像。 每个图像包括多个像素，每个像素表示在场景内的不同物理位置处的光源的光输出的强度。 处理单元被配置为处理所获取的一系列图像以确定第一光源的光贡献是否存在于场景内的所选物理位置。 将所选择的所选择的物理位置的序列的像素序列与N个符号的第一序列相关联。
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3.发明授权Data detection for visible light communications using conventional camera sensor 有权使用常规相机传感器的可见光通信的数据检测公开(公告)号：US08942570B2
公开(公告)日：2015-01-27
申请号：US13520589
申请日：2011-01-13
CPC分类号： H05B37/0272 , H05B37/029
摘要： The invention relates to a detection system for determining data embedded into the light output of a light source in a form of a repeating sequence of N symbols. The detection system includes a camera and a processing unit. The camera is configured to acquire a series of images of the scene via specific open/closure patterns of the shutter. The processing unit is configured to process the acquired series of images to determine the repeating sequence of N symbols. By carefully triggering when a shutter of the camera is open to capture the different symbols of the encoded light within each frame time of a camera, a conventional camera with a relatively long frame time may be employed. Therefore, the techniques presented herein are suitable for detecting the invisible “high frequency” coded light while using less expensive cameras as those used in the prior art.
摘要翻译： 本发明涉及一种用于以N个符号的重复序列的形式确定嵌入到光源的光输出中的数据的检测系统。 检测系统包括照相机和处理单元。 相机被配置为通过快门的特定打开/关闭图案来获取场景的一系列图像。 处理单元被配置为处理所获取的一系列图像以确定N个符号的重复序列。 通过在相机的快门被打开以捕捉相机的每个帧时间内的编码光的不同符号时，通过小心地触发，可以采用具有相对长的帧时间的常规相机。 因此，本文所提出的技术适用于检测不可见的“高频”编码光，同时使用比现有技术中使用的较便宜的照相机。
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公开(公告)号：US08755561B2
公开(公告)日：2014-06-17
申请号：US13520588
申请日：2011-01-11
申请人： Ruud Vlutters , Frederik Jan De Bruijn , Lorenzo Feri , Tim Corneel Wilhelmus Schenk , Remco Theodorus Johannes Muijs
发明人： Ruud Vlutters , Frederik Jan De Bruijn , Lorenzo Feri , Tim Corneel Wilhelmus Schenk , Remco Theodorus Johannes Muijs
IPC分类号： G06K9/00
CPC分类号： H05B37/02 , G06K9/2036
摘要： The invention relates to a detection system for determining whether a light contribution of a light source is present at a selected position within a 2D scene. The light contribution includes an embedded code comprising a repeating sequence of N symbols. The detection system includes a camera and a processing unit. The camera is configured to acquire a series of images of the scene via specific open/closure patterns of the shutter. Each image includes a plurality of pixels, each pixel representing an intensity of the light output of the light source at a different physical position within the scene. The processing unit is configured to process the acquired series of images to determine whether the light contribution of the first light source is present at the selected physical position within the scene by e.g. correlating a sequence of pixels of the acquired series corresponding to the selected physical position with the first sequence of N symbols.
摘要翻译： 本发明涉及一种用于确定在2D场景内的选定位置是否存在光源的光贡献的检测系统。 光贡献包括包括N个符号的重复序列的嵌入代码。 检测系统包括照相机和处理单元。 相机被配置为通过快门的特定打开/关闭图案来获取场景的一系列图像。 每个图像包括多个像素，每个像素表示在场景内的不同物理位置处的光源的光输出的强度。 处理单元被配置为处理所获取的一系列图像以确定第一光源的光贡献是否存在于场景内的所选物理位置。 将所选择的所选择的物理位置的序列的像素序列与N个符号的第一序列相关联。
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公开(公告)号：US09131221B2
公开(公告)日：2015-09-08
申请号：US13379453
申请日：2010-06-21
CPC分类号： H04N13/218 , H04N13/10 , H04N13/207 , H04N13/289
摘要： A camera and camera system is provided with an optical device (8). The optical device creates simultaneously two or more images of object on a sensor (4) forming a compound image. The distance d between the constituting images of objects in the compound image is dependent on the distance Z to the camera. The compound image is analyzed (9), e.g. deconvolved to determine the distances d between the double images. These distances are then converted into a depth map (10).
摘要翻译： 相机和相机系统设置有光学装置（8）。 光学装置在形成复合图像的传感器（4）上同时产生两个或多个物体图像。 复合图像中物体的构成图像之间的距离d取决于相机的距离Z。 分析复合图像（9），例如 解卷积以确定双重图像之间的距离d。 然后将这些距离转换成深度图（10）。
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公开(公告)号：US08934005B2
公开(公告)日：2015-01-13
申请号：US14232016
申请日：2012-07-03
摘要： A system and method that measures an optical focus of a distant optical imaging system (EYE), in particular the ocular accommodation of a distant human subject. A luminous pattern of light (P1, A1) is projected by a projector (P) in focus (A2) at a known focal plane (FPL1) in front of the distant optical imaging system (EYE), and an image of the reflection of the pattern (A3) on a sensor surface of the distant optical imaging system (EYE), for instance the retina of an eye, is recorded by a camera (CAM) having an optical axis (AXCAM) coinciding at least partly with or situated close to the optical axis (AXP) of the projection device (P). The sharpness of the luminous pattern (A3) reflected from the sensor surface (retina) is determined.
摘要翻译： 测量远距离光学成像系统（EYE）的光学焦点的系统和方法，特别是遥远的人类对象的眼睛适应。 在远距离光学成像系统（EYE）前面的已知焦平面（FPL1）处，通过投影仪（P）在聚焦（A2）处投射光（P1，A1）的发光图案，并且反射的图像 远距离光学成像系统（EYE）的传感器表面（EYE）上的图案（A3）例如眼睛的视网膜由相机（CAM）记录，该照相机（CAM）具有至少部分地或位于近处的光轴（AXCAM） 到投影装置（P）的光轴（AXP）。 确定从传感器表面（视网膜）反射的发光图案（A3）的清晰度。
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公开(公告)号：US20130035599A1
公开(公告)日：2013-02-07
申请号：US13641906
申请日：2011-04-13
CPC分类号： A61B5/1135 , G06T7/521 , G06T2207/10016 , G06T2207/30004
摘要： The invention relates to a respiratory motion detection apparatus (1) for detecting respiratory motion of a person. An illuminator (3) illuminates the person (2) with an illumination pattern (11), and a detector (4) detects the illumination pattern (11) on the person (2) over time. A temporal respiratory motion signal being indicative of the respiratory motion of the person (2) is determined from the detected illumination pattern by a respiratory motion signal determination unit (5). The illumination pattern deforms significantly with slight movements of the person. Thus, since the respiratory motion signal determination unit (5) is adapted to determine the temporal respiratory motion signal from the detected illumination pattern, even slight respiratory movements of the person can be determined. The sensitivity of detecting respiratory movements of a person can therefore be improved.
摘要翻译： 本发明涉及一种用于检测人的呼吸运动的呼吸运动检测装置（1）。 照明器（3）用照明图案（11）照亮人（2），检测器（4）随着时间检测人（2）上的照明图案（11）。 由呼吸运动信号确定单元（5）从检测到的照明模式确定指示人（2）的呼吸运动的时间呼吸运动信号。 随着人的轻微动作，照明图案显着变形。 因此，由于呼吸运动信号判定单元（5）适合于根据检测到的照明图案来确定时间呼吸运动信号，所以能够确定人的轻微呼吸运动。 因此，可以提高检测人的呼吸运动的灵敏度。
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公开(公告)号：US20120162375A1
公开(公告)日：2012-06-28
申请号：US13379453
申请日：2010-06-21
IPC分类号： H04N13/02
CPC分类号： H04N13/218 , H04N13/10 , H04N13/207 , H04N13/289
摘要： A camera and camera system is provided with an optical device (8). The optical device creates simultaneously two or more images of object on a sensor (4) forming a compound image. The distance d between the constituting images of objects in the compound image is dependent on the distance Z to the camera. The compound image is analysed (9), e.g. deconvolved to determine the distances d between the double images. These distances are then converted into a depth map (10).
摘要翻译： 相机和相机系统设置有光学装置（8）。 光学装置在形成复合图像的传感器（4）上同时产生两个或多个物体图像。 复合图像中物体的构成图像之间的距离d取决于相机的距离Z。 分析复合图像（9），例如 解卷积以确定双重图像之间的距离d。 然后将这些距离转换成深度图（10）。
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公开(公告)号：US11471073B2
公开(公告)日：2022-10-18
申请号：US13641906
申请日：2011-04-13
摘要： The invention relates to a respiratory motion detection apparatus (1) for detecting respiratory motion of a person. An illuminator (3) illuminates the person (2) with an illumination pattern (11), and a detector (4) detects the illumination pattern (11) on the person (2) over time. A temporal respiratory motion signal being indicative of the respiratory motion of the person (2) is determined from the detected illumination pattern by a respiratory motion signal determination unit (5). The illumination pattern deforms significantly with slight movements of the person. Thus, since the respiratory motion signal determination unit (5) is adapted to determine the temporal respiratory motion signal from the detected illumination pattern, even slight respiratory movements of the person can be determined. The sensitivity of detecting respiratory movements of a person can therefore be improved.
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公开(公告)号：US20110311119A1
公开(公告)日：2011-12-22
申请号：US13254200
申请日：2010-03-01
IPC分类号： G06K9/00
CPC分类号： G06T7/20 , A61B5/0064 , A61B5/0255 , A61B5/0816 , A61B5/7285 , A61B6/541 , A61B2562/0233 , A61B2562/046 , G06T7/90 , G06T2207/10016 , G06T2207/10024 , G06T2207/30076 , G06T2207/30201
摘要： A method of processing images of at least one living being, includes obtaining a sequence (19) of digital images taken at consecutive points in time. At least one measurement zone (26) comprising a plurality of image points is selected. For each measurement zone (26), a signal (28,30) representative of at least variations in a time-varying value of a combination of pixel values at least a number of the image points for use in determining at least one of a presence and a frequency value of at least one peak in a spectrum of the signal (28,30) corresponding to a frequency of a periodic physiological phenomenon is obtained. The step (25) of selecting at least one measurement zone (26) includes analyzing information based on pixel data of a plurality of image parts in at least one of the images (19), each image part including at least one image point, and selecting each measurement zone (26) from contiguous parts determined to have similar characteristics.
摘要翻译： 一种处理至少一个生物的图像的方法，包括获得在连续的时间点拍摄的数字图像的序列（19）。 选择包括多个图像点的至少一个测量区域（26）。 对于每个测量区域（26），表示至少多个图像点的组合的时间变化值的变化的信号（28,30），用于确定至少一个存在 并且获得与周期性生理现象的频率对应的信号（28,30）的频谱中的至少一个峰值的频率值。 选择至少一个测量区域（26）的步骤（25）包括基于至少一个图像（19）中的多个图像部分的像素数据分析信息，每个图像部分包括至少一个图像点，以及 从被确定为具有相似特征的连续部分中选择每个测量区域（26）。
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