公开(公告)号：US20130324874A1

公开(公告)日：2013-12-05

申请号：US13486715

申请日：2012-06-01

Applicant: Edgar A. BERNAL ,  Lalit Keshav MESTHA ,  Beilei XU

Inventor： Edgar A. BERNAL ,  Lalit Keshav MESTHA ,  Beilei XU

IPC: A61B5/113

CPC classification number: A61B5/1077 ,  A61B5/0064 ,  A61B5/091 ,  A61B5/1128 ,  A61B5/1135 ,  G01B11/2527

Abstract: 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.

Abstract translation: 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：US20130235178A1

公开(公告)日：2013-09-12

申请号：US13416436

申请日：2012-03-09

Applicant: Yao Rong WANG ,  Lalit Keshav MESTHA ,  Beilei XU ,  Raja BALA ,  Graham PENNINGTON

Inventor： Yao Rong WANG ,  Lalit Keshav MESTHA ,  Beilei XU ,  Raja BALA ,  Graham PENNINGTON

IPC: H04N5/33 ,  G06K9/62

CPC classification number: G06K9/00255 ,  G06K9/00838 ,  G06K9/2018 ,  H04N5/33

Abstract: What is disclosed is a system and method for selecting the optimal wavelength ban combination for a multi-band infrared camera system which is optimized for skin detection. An objective function is constructed specifically for this application from classified performance and the algorithm generates wavelengths by maximizing the objective function. A specific wavelength band combination is selected which maximizes the objective function. Also disclosed is a 3-band and 4-band camera system with filters each having a transmittance of one of a combination of wavelength bands optimized to detect skin in the infrared band. The camera systems disclosed herein find their intended uses in a wide array of vehicle occupancy detection systems and applications. Various embodiments are disclosed.

Abstract translation: 公开的是用于为针对皮肤检测而优化的多频带红外相机系统选择最佳波长禁止组合的系统和方法。 目标函数由分类性能专门为此应用构建，算法通过最大化目标函数生成波长。 选择使目标函数最大化的特定波段组合。 还公开了一种具有滤波器的三频带和四频带相机系统，每个滤波器具有被优化以检测红外频带中的皮肤的波长带的组合之一的透射率。 本文公开的相机系统在各种车辆占用检测系统和应用中找到其预期用途。 公开了各种实施例。

公开(公告)号：US20130148904A1

公开(公告)日：2013-06-13

申请号：US13324433

申请日：2011-12-13

Applicant: Yao Rong WANG ,  Lalit Keshav MESTHA

Inventor： Yao Rong WANG ,  Lalit Keshav MESTHA

IPC: G06K9/62

CPC classification number: G06K9/72 ,  G06K9/4652

Abstract: What is disclosed is a system and method for post-processing a multi-spectral image which has already been processed for pixel classification. A binary image is received which contains pixels that have been classified using a pixel classification method. Each pixel in the image has an associated intensity value and has a pixel value of 1 or 0 depending on whether the pixel has been classified as a material of interest or not. A block of size m×n is defined. Pixel values in a block are changed according to a threshold-based filtering criteria such that pixels in the same block all have the same binary value. The block is then shifted by k pixels and pixel processing repeats until all pixels have been processed. Once all blocks have been processed, contiguous pixels having the same binary value are grouped to form objects. In such a manner, pixel classification errors are reduced.

Abstract translation: 所公开的是用于后处理已经被处理用于像素分类的多光谱图像的系统和方法。 接收包含使用像素分类方法分类的像素的二进制图像。 图像中的每个像素具有相关联的强度值，并且具有像素值为1或0的取决于像素是否被分类为感兴趣的材料。 定义一个大小为m×n的块。 块中的像素值根据基于阈值的滤波准则而改变，使得相同块中的像素都具有相同的二进制值。 然后将块移动k个像素，并重复像素处理直到所有像素都被处理。 一旦所有块都被处理，具有相同二进制值的连续像素被分组以形成对象。 以这种方式，减少像素分类误差。

公开(公告)号：US20130141574A1

公开(公告)日：2013-06-06

申请号：US13312414

申请日：2011-12-06

Applicant: Edul N. DALAL ,  Peter PAUL ,  Lalit Keshav MESTHA ,  Abu Saeed ISLAM

Inventor： Edul N. DALAL ,  Peter PAUL ,  Lalit Keshav MESTHA ,  Abu Saeed ISLAM

IPC: H04N5/33

CPC classification number: G06K9/00362 ,  G06K9/2018 ,  H04N5/33

Abstract: What is disclosed is a method for vehicle occupancy detection using a single band infrared imaging system. First, an infrared image of a vehicle intended to be processed for human occupancy detection is captured using a single band infrared camera set to a predefined wavelength band. A candidate sub-image is identified within the captured image. A cumulative histogram is formed using the reflectance values of each pixel in the candidate region. A threshold reflectance value is then determined from the cumulative histogram using a pre-defined cumulative occurrence fraction value which corresponds to a value equivalent to an average sized human face. Embodiments for setting the threshold reflectance value are disclosed. Thereafter, human occupants can be distinguished in the image from the vehicle's interior by comparing pixel reflectances in the sub-image against the threshold reflectance value.

Abstract translation: 所公开的是使用单频带红外成像系统的车辆占用检测方法。 首先，使用设定为预定波长带的单频带红外线摄像机来捕捉旨在进行人身携带检测的车辆的红外图像。 在拍摄图像内识别候选子图像。 使用候选区域中的每个像素的反射率值形成累积直方图。 然后使用对应于等于平均大小的人脸的值的预定义累积出现分数值，从累积直方图确定阈值反射率值。 公开了设定阈值反射率值的实施例。 此后，通过将子图像中的像素反射率与阈值反射率值进行比较，可以将图像与车辆内部区分开。

公开(公告)号：US20130079658A1

公开(公告)日：2013-03-28

申请号：US13246560

申请日：2011-09-27

Applicant: George Cunha CARDOSO ,  Lalit Keshav MESTHA ,  Beilei XU

Inventor： George Cunha CARDOSO ,  Lalit Keshav MESTHA ,  Beilei XU

IPC: A61B5/08

CPC classification number: A61B5/0059 ,  A61B5/0037 ,  A61B5/0816 ,  A61B5/0836 ,  A61B5/7257 ,  A61B2576/00 ,  A61M2205/3313 ,  A61M2230/432 ,  G01N21/3504 ,  G01N33/497

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20120262577A1

公开(公告)日：2012-10-18

申请号：US13086006

申请日：2011-04-13

Applicant: Yao Rong WANG ,  Zhigang FAN ,  Lalit Keshav MESTHA

Inventor： Yao Rong WANG ,  Zhigang FAN ,  Lalit Keshav MESTHA

IPC: H04N5/33 ,  H04N7/18 ,  G06K9/00

CPC classification number: G06K9/00369 ,  G06K2009/4657 ,  G06T7/11 ,  G06T2207/10048 ,  G06T2207/30242

Abstract: What is disclosed is a novel system and method for determining the number of objects in an IR image obtained using an IR imaging system. In one embodiment, a total of N intensity values are collected for each pixel in an IR image using a IR imaging system comprising an IR detection device and an IR Illuminator. Intensity values are retrieved from a database which have been estimated for a plurality of known materials, such as skin and hair. A classification is determined for each pixel in the IR image using either a best fitting method of a reflectance, or a correlation method. Upon classification, a total number of objects in the IR image can be determined. The present system and method finds its intended uses in of real world applications such as, determining the number of occupants in a vehicle traveling in a HOV/HOT lane.

Abstract translation: 所公开的是用于确定使用IR成像系统获得的IR图像中的对象数量的新颖系统和方法。 在一个实施例中，使用包括IR检测装置和IR照明器的IR成像系统对IR图​​像中的每个像素收集总共N个强度值。 从已经为多种已知材料（例如皮肤和头发）估计的数据库检索强度值。 使用反射率的最佳拟合方法或相关方法来确定IR图像中的每个像素的分类。 在分类时，可以确定IR图像中的对象的总数。 本系统和方法在现实应用中找到其预期用途，例如确定在HOV / HOT车道中行驶的车辆中的乘客人数。

公开(公告)号：US20110019212A1

公开(公告)日：2011-01-27

申请号：US12507515

申请日：2009-07-22

Applicant: Yao Rong WANG ,  Lalit Keshav MESTHA

Inventor： Yao Rong WANG ,  Lalit Keshav MESTHA

IPC: H04N1/60

CPC classification number: H04N1/407

Abstract: A method for calibrating an image printing system that includes a plurality of parallel printers, where each of the printers has a minimum luminance value. The method includes determining a minimum luminance value profile for the plurality of printers in the image printing system based on the minimum luminance values of each of the printers in the image printing system, determining a black point compensation function based on the determined minimum luminance value profile, adjusting luminance values for input image data using the determined black point compensation function, and rendering, with the parallel printers, images on substrates based on the input image data with adjusted luminance levels.

Abstract translation: 一种用于校准包括多个平行打印机的图像打印系统的方法，其中每个打印机具有最小的亮度值。 该方法包括基于图像打印系统中的每个打印机的最小亮度值确定图像打印系统中的多个打印机的最小亮度值分布，基于所确定的最小亮度值分布来确定黑点补偿功能 使用确定的黑点补偿功能调整输入图像数据的亮度值，并且使用并行打印机，基于具有调整的亮度水平的输入图像数据来渲染基板上的图像。

公开(公告)号：US20100198368A1

公开(公告)日：2010-08-05

申请号：US12363898

申请日：2009-02-02

Applicant: Lalit Keshav MESTHA ,  Prudhvi K. GURRAM ,  Alvaro Enrique GIL

Inventor： Lalit Keshav MESTHA ,  Prudhvi K. GURRAM ,  Alvaro Enrique GIL

IPC: G05B13/04

CPC classification number: G03G15/065 ,  G03G15/0266 ,  G03G15/50

Abstract: Methods and planning systems used to schedule gain matrices for process control loops and determine optimal values for manipulated variables according to a minimum cost function. A cost function is calculated for each of a predetermined number of plans as a sum of partial cost functions calculated over a predetermined number of projections in a horizon. Each partial cost function after the initial projection of a plan is calculated using a scheduled gain matrix. The gain matrix can be scheduled for each projection by selection from a predetermined set of gain matrices or can be calculated in real time during the calculation for each projection.

Abstract translation: 用于计划过程控制回路的增益矩阵的方法和规划系统，并根据最小成本函数确定操纵变量的最佳值。 对于预定数量的计划中的每一个计算成本函数，作为在水平线上预定数量的投影计算的部分成本函数的总和。 使用调度增益矩阵计算平面图初始投影后的每个部分成本函数。 增益矩阵可以通过从预定的增益矩阵组中选择来为每个投影进行调度，或者可以在每个投影的计算期间实时计算增益矩阵。

公开(公告)号：US20090190966A1

公开(公告)日：2009-07-30

申请号：US12208078

申请日：2008-09-10

Applicant: Lalit Keshav MESTHA ,  Palghat RAMESH ,  John G. SHAW ,  Dale R. MASHTARE ,  Joel A. KUBBY

Inventor： Lalit Keshav MESTHA ,  Palghat RAMESH ,  John G. SHAW ,  Dale R. MASHTARE ,  Joel A. KUBBY

IPC: G03G15/08

CPC classification number: G03G15/0818 ,  G03G2215/00957 ,  G03G2215/0653 ,  G03G2215/1614

Abstract: Exemplary embodiments provide a roll member that includes one or more linear arrays of actuator cells and methods for making and using the roll member. In one embodiment, each linear array of the roll member can be controllably actuated as a group by, e.g., an oscillating voltage, to release toner particles adhered thereto and to form a uniform toner cloud in the development area between the roll member and an image receiving member. The controllable actuation can also aid in the unloading process of the residual toner particles from the roll member. In various embodiments, the uniform toner cloud and/or the controllable unloading process can enable a non-interactive development system for image-on-image full-color printing.

Abstract translation: 示例性实施例提供了包括一个或多个致动器单元的线性阵列的辊构件以及用于制造和使用辊构件的方法。 在一个实施例中，辊构件的每个线性阵列可以通过例如振荡电压作为一组进行可控地致动，以释放附着在其上的调色剂颗粒，并在辊构件和图像之间的显影区域中形成均匀的调色剂云 接收成员。 可控制的致动还可以帮助来自辊构件的剩余调色剂颗粒的卸载过程。 在各种实施例中，均匀调色剂云和/或可控卸载过程可以实现用于图像上全色打印的非交互式显影系统。

公开(公告)号：US20080007802A1

公开(公告)日：2008-01-10

申请号：US11428489

申请日：2006-07-03

Applicant: R. Enrique VITURRO ,  Lalit Keshav MESTHA ,  Joseph D. HANCOCK ,  Tonya L. LOVE

Inventor： R. Enrique VITURRO ,  Lalit Keshav MESTHA ,  Joseph D. HANCOCK ,  Tonya L. LOVE

IPC: H04N1/46

CPC classification number: H04N1/46

Abstract: A printer or other marking engine includes a marking material transfer device, such as a photoreceptor drum or belt, that includes a plurality of pitches. Each pitch receives an individual color of marking material and conveys the marking material to a substrate. The marking engine forms a desired image in a main image area of the substrate using marking material from one or more of the pitches, and produces a target patch pattern for each of the pitches in a margin area located outside the main image area. A measuring device such as a spectrophotometer is used to measure each target patch pattern, and based on the measured values, an individual color calibration is performed for each pitch for use in a subsequent marking operation. The color calibration may include generating or modifying a tone reproduction curve for each pitch based on the measured values. The margin area may be later trimmed off, thereby removing the portion of the substrate on which the target patch pattern is formed.

Abstract translation: 打印机或其他标记引擎包括包括多个间距的标记材料传送装置，例如感光鼓或皮带。 每个音调接收标记材料的单独颜色，并将标记材料传送到基底。 标记引擎使用来自一个或多个间距的标记材料在基板的主图像区域中形成期望的图像，并且在位于主图像区域外部的边缘区域中产生用于每个间距的目标贴图。 使用诸如分光光度计的测量装置来测量每个目标贴片图案，并且基于测量值，对于每个间距执行单独的颜色校准以用于随后的标记操作。 颜色校准可以包括基于测量值产生或修改每个音高的色调再现曲线。 可以稍后修剪边缘区域，从而去除其上形成有目标贴片图案的基板的部分。