公开(公告)号：US20130343634A1

公开(公告)日：2013-12-26

申请号：US13533678

申请日：2012-06-26

申请人： Beilei XU ,  Lalit Keshav MESTHA ,  Edgar A. BERNAL

发明人： Beilei XU ,  Lalit Keshav MESTHA ,  Edgar A. BERNAL

IPC分类号： G06K9/36

CPC分类号： G06T7/0075 ,  G01B11/25 ,  G06K9/36 ,  G06K9/46 ,  G06T7/521 ,  G06T7/55 ,  G06T7/593 ,  G06T2207/10012 ,  G06T2207/20104 ,  G06T2207/30076

摘要： What is disclosed is system and method for contemporaneously reconstructing images of a scene illuminated with unstructured and structured illumination sources. In one embodiment, the system comprises capturing a first 2D image containing energy reflected from a scene being illuminated by a structured illumination source and a second 2D image containing energy reflected from the scene being illuminated by an unstructured illumination source. A controller effectuates a manipulation of the structured and unstructured illumination sources during capture of the video. A processor is configured to execute machine readable program instructions enabling the controller to manipulate the illumination sources, and for effectuating the contemporaneous reconstruction of a 2D intensity map of the scene using the second 2D image and of a 3D surface map of the scene using the first 2D image. The reconstruction is effectuated by manipulating the illumination sources.

摘要翻译： 公开的是同时重建用非结构化和结构化照明源照明的场景的图像的系统和方法。 在一个实施例中，系统包括捕获包含由结构化照明源照亮的场景反射的能量的第一2D图像和包含由非结构化照明源照亮的场景反射的能量的第二2D图像。 在拍摄视频期间，控制器实现对结构化和非结构化照明源的操纵。 处理器被配置为执行机器可读程序指令，使得控制器能够操纵照明源，并且使用第二2D图像和场景的3D表面图使用第一图像来实现场景的2D强度地图的同时重建 2D图像。 通过操纵照明源来实现重建。

公开(公告)号：US20130322729A1

公开(公告)日：2013-12-05

申请号：US13483992

申请日：2012-05-30

申请人： Lalit Keshav MESTHA ,  Beilei XU ,  Edgar A. BERNAL

发明人： Lalit Keshav MESTHA ,  Beilei XU ,  Edgar A. BERNAL

IPC分类号： G06K9/46

CPC分类号： G06T7/0016 ,  A61B5/0077 ,  A61B5/02 ,  A61B5/021 ,  A61B5/02416 ,  A61B5/029 ,  A61B5/489 ,  G06T2207/10024 ,  G06T2207/10048 ,  G06T2207/30076 ,  G06T2207/30101

摘要： What is disclosed is a non-contact system and method for determining cardiac function parameters from a vascular pattern identified from RGB and IR video signals captured simultaneously of a region of exposed skin of a subject of interest. In one embodiment, a video of a region of exposed skin is captured using a video camera that captures color values for pixels over visible channels and an IR camera that measures pixel intensity values in wavelength ranges of interest. Pixel intensity values are processed to generate a vascular binary mask that indicates pixel locations corresponding to the vascular pathways. The IR images are registered with corresponding data from the camera's visible channels such that pixels that correspond to the vascular pattern can be isolated in each frame of the video of visible color data. Once processed, pixels associated with the isolated vascular patterns are analyzed to determine desired cardiac function parameters.

摘要翻译： 公开的是一种非接触式系统和方法，用于根据由目标受试者的暴露皮肤区域同时捕获的RGB和IR视频信号识别的血管图案来确定心脏功能参数。 在一个实施例中，使用捕获可见信道上的像素的颜色值的摄像机和测量感兴趣的波长范围内的像素强度值的IR照相机捕获暴露皮肤区域的视频。 处理像素强度值以产生指示对应于血管通路的像素位置的血管二进制掩模。 红外图像与来自相机的可视通道的相应数据一起登记，使得与血管图案相对应的像素可以在可见颜色数据的视频的每个帧中被隔离。 一旦处理，分析与分离的血管图案相关联的像素以确定期望的心脏功能参数。

公开(公告)号：US20130324874A1

公开(公告)日：2013-12-05

申请号：US13486715

申请日：2012-06-01

申请人： Edgar A. BERNAL ,  Lalit Keshav MESTHA ,  Beilei XU

发明人： Edgar A. BERNAL ,  Lalit Keshav MESTHA ,  Beilei XU

IPC分类号： A61B5/113

CPC分类号： A61B5/1077 ,  A61B5/0064 ,  A61B5/091 ,  A61B5/1128 ,  A61B5/1135 ,  G01B11/2527

摘要： What is disclosed is a system and method for estimating minute ventilation by analyzing distortions in reflections of structured illumination patterns captured in a video of a thoracic region of a subject of interest being monitored for respiratory function. Measurement readings can be acquired in a few seconds under a diverse set of lighting conditions and provide a non-contact approach to patient respiratory function that is particularly useful for infant care in an intensive care unit (ICU), sleep studies, and can aid in the early detection of sudden deterioration of physiological conditions due to detectable changes in patient chest volume. The systems and methods disclosed herein provide an effective tool for minute ventilation estimation and respiratory function study and analysis in a non-contact remote sensing environment.

摘要翻译： 所公开的是通过分析被监测用于呼吸功能的感兴趣受试者的胸部区域的视频中捕获的结构化照明模式的反射中的失真来估计每分钟通气的系统和方法。 测量读数可以在多种照明条件下几秒钟内获得，并提供对患者呼吸功能的非接触式方法，对重症监护室（ICU），睡眠研究中的婴儿护理特别有用，并且可以帮助 由于患者胸部体积的可检测变化，早期检测到生理状况突然恶化。 本文公开的系统和方法为非接触式遥感环境中的分钟通气估计和呼吸功能研究和分析提供了有效的工具。

公开(公告)号：US20130342756A1

公开(公告)日：2013-12-26

申请号：US13533605

申请日：2012-06-26

申请人： Beilei XU ,  Lalit Keshav MESTHA ,  Edgar A. BERNAL

发明人： Beilei XU ,  Lalit Keshav MESTHA ,  Edgar A. BERNAL

IPC分类号： H04N5/222

CPC分类号： A61B5/0077 ,  A61B5/0035 ,  A61B5/0073 ,  H04N5/2256 ,  H04N5/23296 ,  H04N5/2354

摘要： What is disclosed is a system and method for enabling hybrid video capture of a scene being illuminated with structured and unstructured illumination sources over a wavelength range of interest that significantly intersects with each other. In one embodiment, the present system comprises a video capture device for capturing video of a scene being actively illuminated by both a structured and unstructured illumination source; a controller for controlling a manipulation of at least one structured and at least one unstructured illumination sources during capture of the video by the video capture device; and a processor in communication with the controller, the processor executing machine readable program instructions effectuating the manipulation. Various embodiments are disclosed.

摘要翻译： 所公开的是一种系统和方法，用于实现在结构化和非结构化照明源上照射的场景的混合视频捕获，所述结构化和非结构化照明源在相互显着相交的感兴趣的波长范围内。 在一个实施例中，本系统包括用于捕获被结构化和非结构化照明源主动照亮的场景的视频的视频捕获设备; 控制器，用于在由所述视频捕捉设备拍摄所述视频期间控制对至少一个结构化和至少一个非结构化照明源的操纵; 以及与所述控制器通信的处理器，所述处理器执行执行所述操作的机器可读程序指令。 公开了各种实施例。

公开(公告)号：US20130324875A1

公开(公告)日：2013-12-05

申请号：US13529648

申请日：2012-06-21

申请人： Lalit Keshav MESTHA ,  Edgar A. BERNAL ,  Beilei XU

发明人： Lalit Keshav MESTHA ,  Edgar A. BERNAL ,  Beilei XU

IPC分类号： A61B5/113

CPC分类号： A61B5/1077 ,  A61B5/0064 ,  A61B5/0816 ,  A61B5/1128 ,  A61B5/1135 ,  G01B11/2527 ,  G06K9/0053 ,  G06T7/262 ,  G06T7/521 ,  G06T2207/10016 ,  G06T2207/10024 ,  G06T2207/10048 ,  G06T2207/10152 ,  G06T2207/20044 ,  G06T2207/20056 ,  G06T2207/30076 ,  G09G2380/08

摘要： What is disclosed is a system and method for estimating a respiration rate by analyzing distortions in reflections of structured illumination patterns captured in a video containing a view of a subject's thoracic region. In one embodiment, a video of a target region of a body of a subject of interest is received. Video image frames are processed to estimate 3D time-series data for the target region. As more fully disclosed herein, the subject's respiration rate is estimated from the 3D time-series data. Measurements can be acquired under a diverse set of lighting conditions. The teachings hereof provide a non-contact approach to patient respiratory function monitoring that is useful for intensive care units and for monitoring at homes, and which aid in the detection of sudden deterioration of physiological conditions due to changes in respiration rates. The teachings hereof provide an effective tool for non-contact respiratory function study and analysis.

摘要翻译： 公开的是通过分析在包含受试者胸部区域的视图中捕获的结构化照明模式的反射中的失真来估计呼吸率的系统和方法。 在一个实施例中，接收感兴趣对象的身体的目标区域的视频。 处理视频图像帧以估计目标区域的3D时间序列数据。 如本文更全面地公开的，从3D时间序列数据估计对象的呼吸速率。 可以在多种照明条件下获得测量。 本文的教导为患者呼吸功能监测提供了非接触的方法，该方法对于重症监护病房有用，并且在家中进行监测，并且有助于检测呼吸速率变化引起的生理状况突然恶化。 本文的教导为非接触式呼吸功能研究和分析提供了有效的工具。

公开(公告)号：US20130324830A1

公开(公告)日：2013-12-05

申请号：US13486682

申请日：2012-06-01

申请人： Edgar A. BERNAL ,  Lalit Keshav MESTHA ,  Beilei XU

发明人： Edgar A. BERNAL ,  Lalit Keshav MESTHA ,  Beilei XU

IPC分类号： A61B6/00 ,  H04N7/18

CPC分类号： G06F19/3418 ,  A61B5/091 ,  A61B5/1128 ,  A61B5/1135 ,  G06F19/00 ,  G06T7/521 ,  G06T2207/10152 ,  G06T2207/30004 ,  G06T2207/30076 ,  H04N7/181

摘要： What is disclosed is a system and method for estimating minute ventilation by analyzing distortions in reflections of structured illumination patterns captured in a video of a thoracic region of a subject of interest being monitored for respiratory function. Measurement readings can be acquired in a few seconds under a diverse set of lighting conditions and provide a non-contact approach to patient respiratory function that is particularly useful for infant care in an intensive care unit (ICU), sleep studies, and can aid in the early detection of sudden deterioration of physiological conditions due to detectable changes in chest volume. The systems and methods disclosed herein provide an effective tool for non-contact minute ventilation estimation and respiratory function analysis.

摘要翻译： 所公开的是通过分析被监测用于呼吸功能的感兴趣受试者的胸部区域的视频中捕获的结构化照明模式的反射中的失真来估计每分钟通气的系统和方法。 测量读数可以在多种照明条件下几秒钟内获得，并提供对患者呼吸功能的非接触式方法，对重症监护室（ICU），睡眠研究中的婴儿护理特别有用，并且可以帮助 早期发现由于胸部体积可检测到的生理状况突然恶化。 本文公开的系统和方法提供了用于非接触式分钟通气估计和呼吸功能分析的有效工具。

公开(公告)号：US20130324876A1

公开(公告)日：2013-12-05

申请号：US13486637

申请日：2012-06-01

申请人： Edgar A. BERNAL ,  Lalit Keshav MESTHA ,  Beilei XU

发明人： Edgar A. BERNAL ,  Lalit Keshav MESTHA ,  Beilei XU

IPC分类号： A61B5/091

CPC分类号： A61B5/091 ,  A61B5/0064 ,  A61B5/1077 ,  A61B5/1128 ,  A61B5/1135 ,  G01B11/2527

摘要： What is disclosed is a system and method for estimating tidal chest volume using 3D surface reconstruction based on an analysis of captured reflections of structured illumination patterns from the subject with a video camera. The imaging system hereof captures the reflection of the light patterns from a target area of the subject's thoracic region. The captured information produces a depth map and a volume is estimated from the resulting 3D map. The teachings hereof provide a non-contact approach to patient respiration monitoring that is particularly useful for infant care in a neo-natal intensive care unit (NICU), and can aid in the early detection of sudden deterioration of physiological condition due to detectable changes in respiratory function. The systems and methods disclosed herein provide an effective tool for tidal chest volume study and respiratory function analysis.

摘要翻译： 所公开的是基于使用摄像机对来自被摄体的结构化照明图案的捕获反射的分析来使用3D表面重建来估计潮汐胸部体积的系统和方法。 其成像系统捕获来自受试者胸部区域的目标区域的光图案的反射。 捕获的信息产生一个深度图，并且从所得到的3D地图估计出一个体积。 本发明的教导提供了对新生儿重症监护病房（NICU）中的婴儿护理特别有用的患者呼吸监测的非接触方法，并且可以有助于早期发现由于可检测的变化引起的生理状态突然恶化 呼吸功能。 本文公开的系统和方法为潮汐胸部体积研究和呼吸功能分析提供了有效的工具。

公开(公告)号：US20130242097A1

公开(公告)日：2013-09-19

申请号：US13419605

申请日：2012-03-14

申请人： George Cunha CARDOSO ,  Lalit Keshav MESTHA ,  Mark S. CANTELLI ,  Edgar A. BERNAL

发明人： George Cunha CARDOSO ,  Lalit Keshav MESTHA ,  Mark S. CANTELLI ,  Edgar A. BERNAL

IPC分类号： H04N5/33 ,  H04N7/18

CPC分类号： G01N25/72

摘要： What is disclosed is a system for non-contact, video-based determination of vehicle component failure due to overheating. In a manner more fully disclosed herein, at least one infrared camera is used to capture an infrared image of a component of a vehicle to be inspected for overheating. The images are processed to isolate that component. A temperature is estimated for the isolated component in the image using a camera calibration curve which relates pixel intensities to temperature. A temperature threshold for the isolated component is retrieved from a database based upon a classification of the vehicle. The estimated temperature is then compared to that component's temperature threshold. If the estimated temperature is above the retrieved threshold, a signal is initiated. The teachings hereof find their uses in a variety of remote and non-cooperative vehicle inspection modes in the field of transportation safety. Various embodiments are disclosed.

摘要翻译： 公开的是用于非接触，视频确定由于过热导致的车辆部件故障的系统。 以这里更全面地公开的方式，使用至少一个红外摄像机来捕获要检查的车辆的部件的红外图像过热。 处理图像以隔离该组件。 使用将像素强度与温度相关联的相机校准曲线估计图像中的孤立分量的温度。 基于车辆的分类，从数据库检索隔离部件的温度阈值。 然后将估计的温度与该组件的温度阈值进行比较。 如果估计的温度高于检索到的阈值，则启动信号。 本文的教导在运输安全领域的各种远程和非合作车辆检验模式中发现其用途。 公开了各种实施例。

公开(公告)号：US20130345568A1

公开(公告)日：2013-12-26

申请号：US13532057

申请日：2012-06-25

申请人： Lalit Keshav MESTHA ,  Survi KYAL ,  Beilei XU ,  Himanshu J. MADHU

发明人： Lalit Keshav MESTHA ,  Survi KYAL ,  Beilei XU ,  Himanshu J. MADHU

IPC分类号： A61B5/024 ,  A61B6/00

CPC分类号： A61B5/02405 ,  A61B5/0004 ,  A61B5/02416 ,  A61B5/7235 ,  A61B2576/00

摘要： What is disclosed is a video-based system and method for estimating heart rate variability from time-series signals generated from video images captured of a subject of interest being monitored for cardiac function. In a manner more fully disclosed herein, low frequency and high frequency components are extracted from a time-series signal obtained by processing a video of the subject being monitored. A ratio of the low and high frequency of the integrated power spectrum within these components is computed. Analysis of the dynamics of this ratio over time is used to estimate heart rate variability. The teachings hereof can be used in a continuous monitoring mode with a relatively high degree of measurement accuracy and find their uses in a variety of diverse applications such as, for instance, emergency rooms, cardiac intensive care units, neonatal intensive care units, and various telemedicine applications.

摘要翻译： 所公开的是一种基于视频的系统和方法，用于从由心脏功能监测的感兴趣对象的视频图像产生的时间序列信号估计心率变异性。 以这里更完全公开的方式，从通过处理被监视对象的视频获得的时间序列信号中提取低频和高频分量。 计算这些分量内的综合功率谱的低频和高频比。 分析这个比率随时间的动力学被用于估计心率变异性。 其教导可以以相对较高的测量精度的连续监测模式使用，并且可以在各种各样的应用中使用，例如急诊室，心脏重症监护病房，新生儿重症监护病房和各种各样的 远程医疗应用。

公开(公告)号：US20130343614A1

公开(公告)日：2013-12-26

申请号：US13528307

申请日：2012-06-20

申请人： Survi KYAL ,  Lalit Keshav MESTHA ,  Beilei XU

发明人： Survi KYAL ,  Lalit Keshav MESTHA ,  Beilei XU

IPC分类号： G06K9/36

CPC分类号： G06K9/6217 ,  A61B5/024 ,  G06K9/0057 ,  G06K2209/05

摘要： What is disclosed is a computationally efficient system and method for estimating a subject's cardiac pulse rate from multi-channel source video data. In one embodiment, A time-series signal is continuously processed by repeatedly: (1) conditioning the estimated source signal obtained on a previous iteration to produce a next reference signal; (2) using this reference signal to perform constrained source separation on this next segment to obtain an estimated source signal. A frequency at which this next estimated source signal converged is the subject's estimated cardiac pulse rate for this signal segment. The reference signal is repeatedly updated. Upon convergence, the sliding window is shifted to define a next segment of the time-series signal. The method repeats for each time-series signal segment on a continuous basis or until a termination criteria is met. In such a manner, the subject's cardiac pulse rate is estimated from video data on a continuous basis.

摘要翻译： 所公开的是用于从多信道源视频数据估计被摄体的心脏脉搏率的计算有效的系统和方法。 在一个实施例中，时间序列信号通过重复地连续处理：（1）调节在先前迭代中获得的估计的源信号以产生下一个参考信号; （2）使用该参考信号在该下一个段执行受限的源分离以获得估计的源信号。 该下一个估计的源信号收敛的频率是该信号段的对象的估计的心脏脉搏率。 参考信号被重复更新。 在收敛时，滑动窗口被移动以限定时间序列信号的下一个段。 该方法在连续的基础上重复每个时间序列信号段，或直到满足终止标准。 以这种方式，从连续的视频数据估计被检者的心脏脉搏率。