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：US08335017B1

公开(公告)日：2012-12-18

申请号：US13167349

申请日：2011-06-23

Applicant: Alvaro Enrique Gil ,  Lalit Keshav Mestha ,  Wencheng Wu ,  Edul N. Dalal

Inventor： Alvaro Enrique Gil ,  Lalit Keshav Mestha ,  Wencheng Wu ,  Edul N. Dalal

IPC: H04N1/46

CPC classification number: H04N1/622

Abstract: What is disclosed is a feedback control based system and method for selecting spot color recipes for improved spot color rendition while simultaneously minimizing a function of image quality attributes formed with states defined as vectors such as L*, a*, b*, mottle, graininess, etc. Color is measured with an in-line spectrophotometer or with a full/partial width array. If the sensor is not available, then a model of the print device is used to optimize the function of image quality attributes. In one example embodiment, a spot color of interest is selected along with a set of image quality attributes to be improved for the spot colors of interest. Set points for process actuators and color recipes of the color marking device are adjusted such that a function of the image quality attributes is minimized when the spot color is rendered on the device. Various workflows are disclosed.

Abstract translation: 所公开的是基于反馈控制的系统和方法，用于选择改进的专色再现的专色配方，同时最小化由定义为诸如L *，a *，b *，斑点，颗粒度的矢量形成的图像质量属性的功能 等等。使用直列分光光度计或全/部分宽度阵列测量颜色。 如果传感器不可用，则使用打印设备的型号来优化图像质量属性的功能。 在一个示例性实施例中，选择感兴趣的专色连同一组图像质量属性以便针对感兴趣的专色进行改进。 调整颜色标记装置的处理执行器和颜色配置的设定点，使得当在设备上呈现专色时，图像质量属性的功能被最小化。 公开了各种工作流程。

公开(公告)号：US08314979B2

公开(公告)日：2012-11-20

申请号：US12274980

申请日：2008-11-20

Applicant: Lalit Keshav Mestha ,  Matthew F. Hoffmann

Inventor： Lalit Keshav Mestha ,  Matthew F. Hoffmann

IPC: G03F3/08 ,  H04N1/60 ,  G06K9/00

CPC classification number: H04N1/603

Abstract: Disclosed are color management methods and systems to adaptively tune colors for one or more image marking devices. Specifically, exemplary embodiments include methods and systems to create profiles for preference color matching. For example, Lab values associated with target node colors can be warped using a predefined function for special regions of interest.

Abstract translation: 公开了用于自适应地调整一个或多个图像标记装置的颜色的颜色管理方法和系统。 具体地，示例性实施例包括用于创建偏好颜色匹配的简档的方法和系统。 例如，与目标节点颜色相关联的实验室值可以使用特定感兴趣区域的预定义函数进行扭曲。

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：US20120147194A1

公开(公告)日：2012-06-14

申请号：US12967775

申请日：2010-12-14

Applicant: Yao Rong Wang ,  Zhigang Fan ,  Lalit Keshav Mestha

Inventor： Yao Rong Wang ,  Zhigang Fan ,  Lalit Keshav Mestha

IPC: H04N5/33 ,  G06K9/46

CPC classification number: H04N5/33 ,  G06K9/00369 ,  G06K9/00785 ,  G06K9/00805 ,  G06K9/00838 ,  G06K9/2018

Abstract: What is disclosed is a novel system and method for determining the number of persons in an IR image obtained using an IR imaging system. The present method separates a human from the surrounding background via a set of particularly formed intensity ratios. Quantities derived from these ratios and threshold values are used to selectively classify whether a pixel in the IR image is from a human or from a non-human. Based upon the classification of the various pixels in the IR image, the number of persons is determined. Various embodiments are disclosed.

Abstract translation: 公开的是用于确定使用IR成像系统获得的IR图像中的人数的新颖系统和方法。 本方法通过一组特别形成的强度比将人与周围背景分离。 使用从这些比率和阈值导出的量来选择性地分类IR图像中的像素是来自人还是来自非人。 基于IR图像中的各种像素的分类，确定人数。 公开了各种实施例。

公开(公告)号：US08199360B2

公开(公告)日：2012-06-12

申请号：US12127719

申请日：2008-05-27

Applicant: Alvaro Enrique Gil ,  Lalit Keshav Mestha

Inventor： Alvaro Enrique Gil ,  Lalit Keshav Mestha

IPC: H04N1/60

CPC classification number: H04N1/603

Abstract: This disclosure provides printing methods, apparatus, and systems to generate a multidimensional printer profile for a color printer. Specifically, the profile is generated by a method of selecting a recruiter set of nodes associated with a plurality of target color nodes and selecting a candidate set of nodes associated with a plurality of target color nodes. The candidate nodes and recruiting node cooperate to generate a printer profile.

Abstract translation: 本公开提供了为彩色打印机生成多维打印机配置文件的打印方法，设备和系统。 具体地，通过选择与多个目标颜色节点相关联的节点的招募者集合并选择与多个目标颜色节点相关联的候选节点集合的方法来生成简档。 候选节点和招聘节点合作生成打印机配置文件。

公开(公告)号：US20110305389A1

公开(公告)日：2011-12-15

申请号：US12815823

申请日：2010-06-15

Applicant: Martin S. Maltz ,  Raja Bala ,  Lalit Keshav Mestha

Inventor： Martin S. Maltz ,  Raja Bala ,  Lalit Keshav Mestha

IPC: G06K9/00

CPC classification number: G06K9/00 ,  G06T11/001

Abstract: What is disclosed is a novel system and method for generating a hierarchical LUT for implementing a color transformation within a color imaging system. In one embodiment, a coarse LUT is received which comprises a plurality of sub-cubes arrayed on a plurality of coarse levels on a structured coarse grid. Each of the sub-cubes encompasses at least one coarse LUT node. Sub-cubes in the coarse grid are identified that are bisected by a boundary surface of the gamut. Then, each of the identified coarse LUT sub-cubes are associated with fine LUT which comprises a plurality of fine LUT nodes arrayed on a plurality of fine levels on a structured fine grid. A hierarchical LUT is generated from the coarse LUT and the associated fine LUTs. Thereafter, the hierarchical LUT can be used for color transformation within a color imaging system.

Abstract translation: 公开的是用于生成用于实现彩色成像系统内的颜色变换的分层LUT的新型系统和方法。 在一个实施例中，接收粗略LUT，其包括排列在结构化粗网格上的多个粗略级上的多个子立方体。 每个子立方体包含至少一个粗略LUT节点。 识别粗网格中的子立方体，其被色域的边界面平分。 然后，识别的粗略LUT子立方体中的每一个都与精细LUT相关联，该精细LUT包括排列在结构化细网格上的多个精细级上的多个精细LUT节点。 从粗略LUT和相关联的精细LUT生成分层LUT。 此后，分层LUT可以用于彩色成像系统内的颜色变换。

公开(公告)号：US08072646B2

公开(公告)日：2011-12-06

申请号：US12143040

申请日：2008-06-20

Applicant: Lalit Keshav Mestha ,  Peter Stanley Fisher

Inventor： Lalit Keshav Mestha ,  Peter Stanley Fisher

IPC: H04N1/60 ,  H04N1/46 ,  G03F3/08 ,  G06K9/00

CPC classification number: H04N1/6058

Abstract: An apparatus (100) and method (200) that controls color of a clear coated image on media is disclosed. The apparatus may include a controller (110) configured to control operations of the apparatus. The apparatus may include a memory (120) coupled to the controller. The memory may include reference color information corresponding to a desired color of an output image. The apparatus may include a front end (130) configured to provide a marking engine control signal corresponding to the desired color of the output image. The apparatus may include a color marking engine (140) coupled to the front end, where the color marking engine can be configured to generate an image on media responsive to the marking engine control signal using image output settings. The apparatus may include a clear coat finisher (150) configured to coat the image on the media with a clear coat to create a clear coated image on the media. The apparatus may include a sensor (160) configured to measure color attributes of the clear coated image and configured to provide color information of the clear coated image. The controller can be configured to determine a difference between the color information of the clear coated image and the reference color information and can be configured to adjust the image output settings according to the difference between the color information and the reference color information to achieve adjusted image output settings.

Abstract translation: 公开了一种在介质上控制透明涂覆图像的颜色的设备（100）和方法（200）。 该装置可以包括被配置为控制装置的操作的控制器（110）。 该装置可以包括耦合到控制器的存储器（120）。 存储器可以包括对应于输出图像的期望颜色的参考颜色信息。 该装置可以包括被配置为提供与输出图像的期望颜色相对应的标记引擎控制信号的前端（130）。 该装置可以包括耦合到前端的颜色标记引擎（140），其中颜色标记引擎可以被配置为响应于使用图像输出设置的标记引擎控制信号在媒体上产生图像。 该设备可以包括透明涂层整理器（150），其被配置为用透明涂层在介质上涂覆图像，以在介质上产生清晰的涂覆图像。 该装置可以包括被配置为测量透明涂覆图像的颜色属性并被配置为提供透明涂覆图像的颜色信息的传感器（160）。 控制器可以被配置为确定透明涂覆图像的颜色信息与参考颜色信息之间的差异，并且可以被配置为根据颜色信息和参考颜色信息之间的差来调整图像输出设置，以实现调整图像 输出设置。

公开(公告)号：US20110134447A1

公开(公告)日：2011-06-09

申请号：US12630093

申请日：2009-12-03

Applicant: Lalit Keshav Mestha ,  Alvaro Enrique Gil

Inventor： Lalit Keshav Mestha ,  Alvaro Enrique Gil

IPC: H04N1/60

CPC classification number: H04N1/6058

Abstract: What is disclosed is a novel system and method for retrieving a gamut mapping for a color device. A ray-based model is derived from a system estimation of either a seed profile or a seed device. The model is hard coded inside a run-time ICC profile creation algorithm. The runtime profile generation code can be optimized for a variety of gamut mapping scenarios. The generated profile is provided to an imaging system wherein out-of-gamut colors are mapped to the color gamut of the host device. The present method provides an accurate way to reproduce colors of images by retrieving the gamut mapping from profiles or from the color device that use destination profiles for rendering images.

Abstract translation: 公开的是用于检索彩色设备的色域映射的新颖系统和方法。 基于射线的模型是从种子轮廓或种子装置的系统估计得出的。 该模型在运行时ICC配置文件创建算法中进行硬编码。 运行时配置文件生成代码可针对各种色域映射方案进行优化。 生成的轮廓被提供给成像系统，其中色域外色彩被映射到主机设备的色域。 本方法提供了通过从配置文件或从使用用于渲染图像的目的地配置文件的彩色设备检索色域映射来再现图像颜色的准确方法。

公开(公告)号：US07952759B2

公开(公告)日：2011-05-31

申请号：US12127473

申请日：2008-05-27

Applicant: Yao Rong Wang ,  Alvaro Enrique Gil ,  Lalit Keshav Mestha ,  Martin S. Maltz

Inventor： Yao Rong Wang ,  Alvaro Enrique Gil ,  Lalit Keshav Mestha ,  Martin S. Maltz

IPC: H04N1/40 ,  G06F15/00

CPC classification number: H04N1/6022 ,  H04N1/603

Abstract: This disclosure provides methods, apparatus and systems for generating a multidimensional printer profile for a color printer. Specifically, the disclosure provides a method to blend multiple GCR functions or strategies to produce a final GCR blended printer profile, for example a printer profile LUT.

Abstract translation: 本公开提供了用于生成彩色打印机的多维打印机配置文件的方法，装置和系统。 具体地，本公开提供了一种混合多个GCR功能或策略以产生最终的GCR混合打印机配置文件的方法，例如打印机配置文件LUT。