Respiratory motion detection apparatus

    公开(公告)号:US11471073B2

    公开(公告)日:2022-10-18

    申请号:US13641906

    申请日:2011-04-13

    IPC分类号: A61B5/113 G06T7/521

    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.

    SYSTEM AND METHOD FOR TRACKING THE POINT OF GAZE OF AN OBSERVER
    3.
    发明申请
    SYSTEM AND METHOD FOR TRACKING THE POINT OF GAZE OF AN OBSERVER 有权
    跟踪观察点大小的系统和方法

    公开(公告)号:US20130002846A1

    公开(公告)日:2013-01-03

    申请号:US13582582

    申请日:2011-03-15

    IPC分类号: H04N7/18

    摘要: A system for tracking the point of gaze of an observer observing an object comprises a camera for recording an image of an eye of the observer, comprises a means for providing a luminous marker, and means for analyzing the image of the eye to determine the reflection of the marker on the eye and the centre of the pupil. The relative positions of the corneal reflection of the marker and the pupil centre are measured. The marker is repositioned, in dependence on the determined relative positions, to improve correspondence between the corneal reflection of the marker and the pupil centre.

    摘要翻译: 用于跟踪观察对象的观察者的目标点的系统包括用于记录观察者的眼睛的图像的照相机,包括用于提供发光标记的装置,以及用于分析眼睛的图像以确定反射的装置 的眼睛和瞳孔的中心的标记。 测量标记物和瞳孔中心的角膜反射的相对位置。 根据确定的相对位置重新定位标记,以改善标记物和瞳孔中心的角膜反射之间的对应关系。

    Data Detection For Visible Light Communications Using Conventional Camera Sensor
    4.
    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。

    Stereoscopic image capturing method, system and camera
    6.
    发明授权
    Stereoscopic image capturing method, system and camera 有权
    立体图像拍摄方法,系统和相机

    公开(公告)号:US09131221B2

    公开(公告)日:2015-09-08

    申请号:US13379453

    申请日:2010-06-21

    IPC分类号: H04N13/00 H04N13/02

    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)。

    System and method for remote measurement of optical focus
    7.
    发明授权
    System and method for remote measurement of optical focus 有权
    用于远程测量光学焦点的系统和方法

    公开(公告)号:US08934005B2

    公开(公告)日:2015-01-13

    申请号:US14232016

    申请日:2012-07-03

    IPC分类号: H04N7/18 G06F3/01 A61B3/10

    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。

    ADAPTIVE CONTENT RENDERING BASED ON ADDITIONAL FRAMES OF CONTENT
    8.
    发明申请
    ADAPTIVE CONTENT RENDERING BASED ON ADDITIONAL FRAMES OF CONTENT 失效
    基于内容的附加内容的自适应内容渲染

    公开(公告)号:US20100201878A1

    公开(公告)日:2010-08-12

    申请号:US12294625

    申请日:2007-03-29

    IPC分类号: H04N5/445 H04N5/262

    摘要: A device (500) and method for rendering content that includes analyzing previous and/or subsequent temporal portions of a content signal to determine elements that are positionally related to elements of a current portion of the content signal. The current portion of the content signal is rendered on a primary rendering device (530), such as a television, while the elements that are positionally related to elements of a current portion of the content signal are concurrently rendered on a secondary rendering device (540). In one embodiment, the elements that are rendered on the secondary rendering device (540) may be rendered at a lower resolution and/or lower frame rate than the rendered current portion of the content signal. In one embodiment, at least one of previous and subsequent temporal portions of a content signal may be analyzed at a lower resolution than the content signal.

    摘要翻译: 一种用于呈现内容的设备(500)和方法,包括分析内容信号的先前和/或后续时间部分以确定与内容信号的当前部分的元素位置相关的元素。 内容信号的当前部分在主要呈现设备(530)(诸如电视机)上呈现,而与内容信号的当前部分的元素位置相关的元素同时呈现在辅助再现设备(540)上 )。 在一个实施例中,在再现渲染设备(540)上呈现的元素可以以比内容信号的呈现的当前部分更低的分辨率和/或更低的帧速率呈现。 在一个实施例中,可以以比内容信号更低的分辨率来分析内容信号的先前和后续时间部分中的至少一个。

    MOTION CORRECTED MULTINUCLEAR MAGNETIC RESONANCE IMAGING
    9.
    发明申请
    MOTION CORRECTED MULTINUCLEAR MAGNETIC RESONANCE IMAGING 审中-公开
    运动校正MULTINUCLEAR MAGNETIC RESONANCE IMAGING

    公开(公告)号:US20100054570A1

    公开(公告)日:2010-03-04

    申请号:US12595252

    申请日:2008-04-09

    IPC分类号: G06K9/00

    摘要: The invention relates to a method for acquiring MR images (200-216) of an object, said object comprising at least first and second kinds of nuclei, the method comprising: acquiring (300; 304) first MR image data (200; 202; 204) of the object, wherein the first nuclei are excited, acquiring (302) second MR image data (206-216) of the object, wherein the second nuclei are excited, analyzing the first MR image data (200; 202; 204) determining motion parameters describing a motion of the object based on said analysis, motion correcting the first and/or second MR image data (206-216) using said motion parameters.

    摘要翻译: 本发明涉及一种用于获取对象的MR图像(200-216)的方法,所述对象至少包括第一和第二种核,所述方法包括:获取(300; 304)第一MR图像数据(200; 202; 204),其中所述第一核被激发,获取(302)所述对象的第二MR图像数据(206-216),其中所述第二核被激励,分析所述第一MR图像数据(200; 202; 204) 基于所述分析确定描述所述对象的运动的运动参数,使用所述运动参数运动校正所述第一和/或第二MR图像数据(206-216)。

    System and method for tracking the point of gaze of an observer
    10.
    发明授权
    System and method for tracking the point of gaze of an observer 有权
    用于跟踪观察者注视点的系统和方法

    公开(公告)号:US09237844B2

    公开(公告)日:2016-01-19

    申请号:US13582582

    申请日:2011-03-15

    摘要: A system for tracking the point of gaze of an observer observing an object comprises a camera for recording an image of an eye of the observer, comprises a means for providing a luminous marker, and means for analyzing the image of the eye to determine the reflection of the marker on the eye and the centre of the pupil. The relative positions of the corneal reflection of the marker and the pupil centre are measured. The marker is repositioned, in dependence on the determined relative positions, to improve correspondence between the corneal reflection of the marker and the pupil center.

    摘要翻译: 用于跟踪观察对象的观察者的目标点的系统包括用于记录观察者的眼睛的图像的照相机,包括用于提供发光标记的装置,以及用于分析眼睛的图像以确定反射的装置 的眼睛和瞳孔的中心的标记。 测量标记物和瞳孔中心的角膜反射的相对位置。 根据确定的相对位置重新定位标记,以改善标记物和瞳孔中心的角膜反射之间的对应关系。