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91.发明授权Method and system to personalize sensor characterizing reference database in multiple LED spectrophotometers 有权在多个LED分光光度计中个性化传感器特征参考数据库的方法和系统公开(公告)号：US07555396B2
公开(公告)日：2009-06-30
申请号：US11086087
申请日：2005-03-22
申请人： Lalit Keshav Mestha
发明人： Lalit Keshav Mestha
IPC分类号： G01D18/00
CPC分类号： G01J3/50 , G01J3/02 , G01J3/0275 , G01J3/501 , G01J3/524
摘要： To generate a reference database for a particular sensor in a multiple LED spectrophotometric system with a reduced number of test measurements taken from training samples, a first set of reflectance reference measurements are generated from a test target on to a reference sensor from a plurality of different LED emissions. A first spectral reconstruction reference matrix is computed by performing an operational characterization of the reference sensor from the first set of reflectance reference measurements. A second set of reflectance reference measurements from the test target is generated from a second subject sensor whose operation is to be personalized by the objective reference database. The second set of reflectance reference measurements are less in number than the first set. A second reconstruction matrix is computed by performing an operational characterization of the subject sensor from the second set of measurements. The second reconstruction matrix is adjusted by relating the second set of reflectance measurements to a set of corresponding reflectance measurements of the reference sensor, whereby the adjusting of the second matrix comprises computing an optimal solution spectral reconstruction matrix for the second sensor. The reference database is generated from the optimal solution spectral reconstruction matrix.
摘要翻译： 为了在具有从训练样本获得的测试测量数量减少的多个LED分光光度系统中产生用于特定传感器的参考数据库，从测试目标产生第一组反射参考测量值到多个不同的参考传感器 LED排放。 通过从第一组反射参考测量值执行参考传感器的操作表征来计算第一光谱重构参考矩阵。 来自测试目标的第二组反射参考测量从第二目标传感器产生，其第二对象传感器的操作将由目标参考数据库进行个性化。 第二组反射参考测量数量少于第一组。 通过从第二组测量执行对象传感器的操作表征来计算第二重建矩阵。 通过将第二组反射率测量值与参考传感器的一组对应的反射率测量值相关联来调整第二重构矩阵，由此第二矩阵的调整包括计算第二传感器的最优解谱重构矩阵。 参考数据库是从最优解谱重建矩阵生成的。
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公开(公告)号：US20090040616A1
公开(公告)日：2009-02-12
申请号：US11890575
申请日：2007-08-07
IPC分类号： G02B27/00
CPC分类号： G02B26/001 , G01J3/02 , G01J3/0256 , G01J3/26 , G01J3/2803 , G03G2215/00616
摘要： Disclosed is a microelectromechanically tunable Fabry-Perot device and method of manufacturing tunable Fabry-Perot device and method of manufacturing. The F-P device comprises a first and second substrate which has partially reflective planar surfaces, and the partially reflective planar surfaces are separated by a predetermined separation distance and aligned to provide a F-P cavity, where one or more piezoelectric members are adapted to displace the first and second substrates when an electric field is applied.
摘要翻译： 公开了一种微机电可调法布里 - 珀罗器件和制造可调谐法布里 - 珀罗器件的方法和制造方法。 FP器件包括第一和第二衬底，其具有部分反射的平面表面，并且部分反射的平面表面被隔开预定的间隔距离并对齐以提供FP腔，其中一个或多个压电元件适于使第一和 施加电场时的第二基板。
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公开(公告)号：US09226691B2
公开(公告)日：2016-01-05
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
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。
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94.发明授权公开(公告)号：US09141868B2
公开(公告)日：2015-09-22
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
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。
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95.发明授权Image indexed rendering of images for tuning images from single or multiple print engines 有权用于从单个或多个打印引擎调整图像的图像索引的图像渲染公开(公告)号：US09066054B2
公开(公告)日：2015-06-23
申请号：US12199392
申请日：2008-08-27
CPC分类号： H04N1/6072 , H04N1/00957 , H04N1/56 , H04N2201/0082 , H04N2201/3256
摘要： A system and method for rendering an image provide for segmenting the image into a plurality of segments based on image content and, for each identified segment, identifying a rendering profile from a set of rendering profiles. The rendering profile may include a look up table for converting pixels from a first color space, such as a device independent color space, e.g., RGB, to second color space, such as a device dependent color space, e.g., CMYK. The identified rendering profile is applied to the respective segment and the segments to which the profiles have been applied are combined into a print job for rendering on print media by an associated color output device or otherwise output. The system allows different segments in the image to be processed through different rendering profiles most suited to the objects that the segments contain.
摘要翻译： 用于渲染图像的系统和方法提供了基于图像内容将图像分割成多个片段，并且对于每个识别的片段，从一组渲染轮廓识别渲染轮廓。 呈现轮廓可以包括用于将来自第一颜色空间（例如，与设备无关的颜色空间，例如RGB）的像素转换为第二颜色空间（例如，依赖于设备的色彩空间，例如CMYK）的查找表。 所识别的呈现轮廓被应用于相应的段，并且将已经应用轮廓的段组合成打印作业，以通过相关联的颜色输出装置在打印介质上进行渲染或以其他方式输出。 该系统允许通过不同的渲染轮廓来处理图像中的不同片段，这些轮廓最适合片段包含的对象。
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96.发明授权公开(公告)号：US09019358B2
公开(公告)日：2015-04-28
申请号：US13023310
申请日：2011-02-08
申请人： Lalit Keshav Mestha , Beilei Xu , Peter Paul
发明人： Lalit Keshav Mestha , Beilei Xu , Peter Paul
CPC分类号： G06K9/0063 , G06K2009/00644
摘要： What is disclosed is a novel system and method for simultaneous spectral decomposition suitable for image object identification and categorization for scenes and objects under analysis. The present system captures different spectral planes simultaneously using a Fabry-Perot multi-filter grid each tuned to a specific wavelength. A method for classifying pixels in the captured image is provided. The present system and method finds its uses in a wide array of applications such as, for example, occupancy detection in a transportation management system and in medical imaging and diagnosis for healthcare management. The teachings hereof further find their uses in other applications where there is a need to capture a two dimensional view of a scene and decompose the scene into its spectral bands such that objects in the image can be appropriately identified.
摘要翻译： 所公开的是一种用于同时频谱分解的新型系统和方法，适用于分析场景和物体的图像对象识别和分类。 本系统使用每个调谐到特定波长的法布里 - 珀罗多滤波器网格同时捕获不同的频谱平面。 提供了一种用于对拍摄图像中的像素进行分类的方法。 本系统和方法在广泛的应用中发现其用途，例如在运输管理系统中的占用检测以及用于医疗管理的医学成像和诊断。 其中的教导进一步发现它们在其他应用中的用途，其中需要捕获场景的二维视图并将场景分解为其光谱带，使得可以适当地识别图像中的对象。
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公开(公告)号：US08971985B2
公开(公告)日：2015-03-03
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
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。
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98.发明授权公开(公告)号：US08810658B2
公开(公告)日：2014-08-19
申请号：US13364835
申请日：2012-02-02
申请人： Sandra Skaff , Raja Bala , Lalit Keshav Mestha , Beilei Xu
发明人： Sandra Skaff , Raja Bala , Lalit Keshav Mestha , Beilei Xu
IPC分类号： H04N5/33
摘要： What is disclosed is a system and method for estimating color for pixels in an infrared image. In one embodiment, an infrared image is received which has been captured using a N-band infrared imaging system comprising a multi-spectral camera or a hyperspectral camera. The IR image is composed of an array of pixels with N intensity values having been collected for each pixel in the image. Then, for each pixel of interest, a search metric is used to search a database of vector samples to identify a visible-IR set which is closest to the intensity values of the IR band vector collected for the pixel. A visible vector representation is then estimated for the pixel based upon the visible portion corresponding to the closest visible-IR set. Thereafter, color coordinates for this pixel are computed from the visible vector. The method repeats for all pixels of interest in the IR image.
摘要翻译： 公开的是用于估计红外图像中的像素的颜色的系统和方法。 在一个实施例中，接收使用包括多光谱相机或高光谱相机的N波段红外成像系统捕获的红外图像。 IR图像由对图像中的每个像素收集的具有N个强度值的像素阵列组成。 然后，对于感兴趣的每个像素，使用搜索度量来搜索向量样本的数据库，以识别最接近为该像素收集的IR带矢量的强度值的可见IR集合。 然后基于对应于最接近的可见IR集的可见部分，针对像素估计可见矢量表示。 此后，从可见矢量计算该像素的颜色坐标。 该方法针对IR图像中所有感兴趣的像素重复。
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99.发明授权Minimally invasive image-based determination of carbon dioxide (CO2) concentration in exhaled breath 有权呼吸呼气中二氧化碳（CO2）浓度的微创图像测定公开(公告)号：US08715202B2
公开(公告)日：2014-05-06
申请号：US13246560
申请日：2011-09-27
CPC分类号： A61B5/0059 , A61B5/0037 , A61B5/0816 , A61B5/0836 , A61B5/7257 , A61B2576/00 , A61M2205/3313 , A61M2230/432 , G01N21/3504 , G01N33/497
摘要： What is disclosed is a system and method for image-based determination of carbon dioxide (CO2) concentration in exhaled breath. In one embodiment, an image of the exhaled airstream of a subject of interest is received. The image is captured using a mid-wave infrared camera system having an optical filter tuned to the infrared absorption band of CO2. The image is preprocessed to isolate a region of pixels containing the exhaled airstream and intensity values of pixels in the identified region are normalized by a value of a known radiance such as that of the subject's nose or face. The image is analyzed to determine CO2 concentration levels of the exhaled airstream using a calibration curve which relates pixel intensity to CO2 concentrations. The calibration curve is derived using a physics-based parameterized model. The CO2 concentration levels are determined and communicated to a computer workstation. Various embodiments are disclosed.
摘要翻译： 公开的是用于基于图像的测定呼出气中的二氧化碳（CO 2）浓度的系统和方法。 在一个实施例中，接收感兴趣对象的呼出气流的图像。 使用具有调谐到CO 2的红外吸收带的光学滤波器的中波红外相机系统捕获图像。 图像被预处理以隔离包含呼出气流的像素的区域，并且通过诸如被摄体的鼻子或脸部的已知辐射的值对识别的区域中的像素的强度值进行归一化。 使用将像素强度与CO2浓度相关联的校准曲线来分析图像以确定呼出气流的CO 2浓度水平。 使用基于物理的参数化模型导出校准曲线。 确定二氧化碳浓度水平并传送到计算机工作站。 公开了各种实施例。
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公开(公告)号：US08693050B2
公开(公告)日：2014-04-08
申请号：US12536600
申请日：2009-08-06
申请人： Lalit Keshav Mestha , Wenjie Dong
发明人： Lalit Keshav Mestha , Wenjie Dong
IPC分类号： G06F15/00
CPC分类号： H04N1/6033 , H04N1/40006
摘要： What is disclosed is a novel system and method for controlling process color in a color adjustment system in an image marking device. A control parameter, such as a gain matrix, forms a basis of an adaptive closed-loop controller. A sensitivity matrix is used to calculate the gain matrix. This permits complex color adjustments at a customer location. The present system and method is well suited for long production runs because, as the system moves (or drifts) away from nominal, the color control system will learn the changes in the system (e.g., new input-output sensitivity) with print, measure, and prediction processes, operating on the test patches, and effectively adapt to these changes by re-computing the feedback controller gains and revising the current actuator values to follow desired target color values. The present system and method can also be used for adjusting or developing a CMYK recipe in color management LUTs.
摘要翻译： 所公开的是用于控制图像标记装置中的颜色调整系统中的处理颜色的新型系统和方法。 诸如增益矩阵的控制参数形成自适应闭环控制器的基础。 灵敏度矩阵用于计算增益矩阵。 这允许在客户位置进行复杂的颜色调整。 本系统和方法非常适合长时间的生产运行，因为随着系统从标称位移（或漂移）移动（或漂移），颜色控制系统将通过打印，测量来了解系统的变化（例如，新的输入 - 输出灵敏度） 以及在测试补丁上运行的预测过程，并且通过重新计算反馈控制器增益并修改当前致动器值以跟随期望的目标颜色值来有效地适应这些变化。 本系统和方法也可用于调整或开发色彩管理LUT中的CMYK配方。
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