会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 31. 发明申请
    • PITCH TO PITCH ONLINE GRAY BALANCE CALIBRATION
    • 点击在线灰度平衡校准
    • US20080007802A1
    • 2008-01-10
    • US11428489
    • 2006-07-03
    • R. Enrique VITURROLalit Keshav MESTHAJoseph D. HANCOCKTonya L. LOVE
    • R. Enrique VITURROLalit Keshav MESTHAJoseph D. HANCOCKTonya L. LOVE
    • H04N1/46
    • H04N1/46
    • 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.
    • 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。
    • 32. 发明申请
    • WEB-BASED SYSTEM AND METHOD FOR VIDEO ANALYSIS
    • 基于WEB的系统和视频分析方法
    • US20130236073A1
    • 2013-09-12
    • US13417979
    • 2012-03-12
    • Nischal M. PIRATLALalit Keshav MESTHAMeera SAMPATH
    • Nischal M. PIRATLALalit Keshav MESTHAMeera SAMPATH
    • G06K9/46G06F3/048
    • G06K9/00979
    • What is disclosed is a web-based system which comprises, in part, video analysis modules for performing different types of analysis services on a video, and a server in network communication with a user's computing device. A user selects one or more menu options displayed on a webpage. Each of the menu options is associated with a respective video analysis available to the user. The user makes their election and, within the same session, uploads to the server a video desired to be analyzed with respect to each of the video analysis services selected by the user. Once the server has obtained the user's selection(s) and has received the uploaded video, the server communicates the video to each video analysis module associated with each of the respective analysis services. Upon each completion of the video analysis, the results are communicated back to the user. Various embodiments are disclosed.
    • 公开的是基于网络的系统,其部分地包括用于在视频上执行不同类型的分析服务的视频分析模块,以及与用户的计算设备进行网络通信的服务器。 用户选择网页上显示的一个或多个菜单选项。 每个菜单选项与用户可用的各自的视频分析相关联。 用户进行选举,并且在同一会话内,向服务器上传相对于由用户选择的每个视频分析服务而要分析的视频。 一旦服务器获得用户的选择并已经接收到上传的视频,服务器将该视频传送到与每个相应的分析服务相关联的每个视频分析模块。 在每次完成视频分析时,将结果传回给用户。 公开了各种实施例。
    • 33. 发明申请
    • DERIVING ARTERIAL PULSE TRANSIT TIME FROM A SOURCE VIDEO IMAGE
    • 从源视频图像导出动脉脉冲时间
    • US20130218028A1
    • 2013-08-22
    • US13401286
    • 2012-02-21
    • Lalit Keshav MESTHA
    • Lalit Keshav MESTHA
    • A61B5/024A61B6/00
    • G06T7/0012A61B5/0075A61B5/02125G06T2207/30076G06T2207/30104
    • What is disclosed is a system and method for determining an arterial pulse transit time of a subject of interest in a remote sensing environment. A video imaging system is used to capture a time varying source images of a proximal and distal region of a subject intended to be analyzed for arterial pulse transit time. A time series signal for each of the proximal and distal regions is extracted from the source images and a phase of each of the extracted time series signals is computed. A difference is then computed between these phases. This phase difference is a monotonic function of frequencies in the signals. From the monotonic function, an arterial pulse transit time of the subject is extracted. The subject's arterial pulse transit time is then communicated to a computer system. The computer system determines blood pressure, blood vessel blockage, blood flow velocity, or a peripheral neuropathy.
    • 公开的是用于确定遥感环境中感兴趣的对象的动脉脉冲传播时间的系统和方法。 视频成像系统用于捕获旨在分析动脉脉冲传播时间的受试者的近端和远端区域的时变源图像。 从源图像提取每个近端和远端区域的时间序列信号,并且计算每个提取的时间序列信号的相位。 然后在这些阶段之间计算差异。 该相位差是信号中频率的单调函数。 从单调功能,提取对象的动脉脉冲传播时间。 然后将受试者的动脉脉冲传播时间传达到计算机系统。 计算机系统确定血压,血管阻塞,血流速度或周围神经病变。
    • 34. 发明申请
    • IMAGE-BASED DETERMINATION OF CO AND CO2 CONCENTRATIONS IN VEHICLE EXHAUST GAS EMISSIONS
    • 基于图像的车辆排放气体CO和CO2浓度的确定
    • US20130181836A1
    • 2013-07-18
    • US13419856
    • 2012-03-14
    • George Cunha CARDOSOLalit Keshav MESTHA
    • George Cunha CARDOSOLalit Keshav MESTHA
    • G06K9/62G08B21/00H04N7/18
    • G01M15/108
    • What is disclosed is a system and method for image-based determination of concentration of CO and CO2 in a vehicle's exhaust gas in an emissions testing environment. In one embodiment, the present method involves receiving an IR image of the exhaust plume of a motor vehicle intended to be tested for CO and CO2 concentrations. The IR image has been captured using a mid-wave infrared camera with at least one optical filter tuned to the infrared absorption band of CO and CO2. The images are pre-processed to isolate pixels which contain the exhaust plume. The intensity values of pixels in those isolated regions are normalized and concentrations of CO and CO2 are determined via a calibration curve which relates pixel intensities to concentrations. The concentrations are compared to an emissions standard set for the vehicle to determine whether the vehicle is a gross polluter.
    • 所公开的是用于在排放测试环境中基于图像确定车辆废气中CO和CO 2浓度的系统和方法。 在一个实施例中,本方法包括接收旨在被测试CO和CO 2浓度的机动车辆的排气羽流的IR图像。 使用中波红外摄像机捕获IR图像,其中至少一个光滤波器被调谐到CO和CO 2的红外吸收带。 图像被预处理以分离包含排气羽流的像素。 将这些孤立区域中的像素的强度值归一化,并通过将像素强度与浓度相关联的校准曲线来确定CO和CO 2的浓度。 将浓度与车辆的排放标准进行比较,以确定车辆是否是总污染物。
    • 35. 发明申请
    • HYPERSPECTRAL IMAGE RECONSTRUCTION VIA A COMPRESSED SENSING FRAMEWORK
    • 通过压缩感知框架进行超视距图像重建
    • US20130016284A1
    • 2013-01-17
    • US13180895
    • 2011-07-12
    • Lalit Keshav MESTHAAlvaro Enrique GIL
    • Lalit Keshav MESTHAAlvaro Enrique GIL
    • H04N5/14
    • G06T5/50G06T2207/10036
    • What is disclosed is a system and method for image reconstruction using a compressed sensing framework to increase the number of wavelength bands in hyperspectral video systems. The present method utilizes a restricted representation matrix and sampling matrix to reconstruct bands to a very large number without losing information content. Reference multi-band image vectors are created and those vectors are processed in a block-wise form to obtain custom orthonormal representation matrices. A sampling matrix is also constructed offline in the factory. The compressed sensing protocol is applied using a l1-norm optimization (or relaxation) algorithm to reconstruct large number of wavelength bands with each band being interspersed within the band of interest that are not imaged. The teaching hereof leads to very large number of bands without increasing the hardware cost.
    • 所公开的是使用压缩感测框架来增加高光谱视频系统中的波段数目的图像重构的系统和方法。 本方法利用受限表示矩阵和采样矩阵将频带重构成非常大的数目,而不会丢失信息内容。 创建参考多频带图像矢量并且以块形式处理这些矢量以获得自定义正交表示矩阵。 采样矩阵也在工厂内离线构建。 使用l1范数优化(或松弛)算法应用压缩感测协议来重构大量波长带,其中每个频带分散在不成像的感兴趣的频带内。 这里的教学导致非常多的频带,而不增加硬件成本。
    • 36. 发明申请
    • APPARATUS AND METHOD FOR COLOR CONTROL OF CLEAR COATED IMAGES ON MEDIA
    • 用于彩色控制彩色图像在媒体上的装置和方法
    • US20090316165A1
    • 2009-12-24
    • US12143040
    • 2008-06-20
    • Lalit Keshav MESTHAPeter Stanley FISHER
    • Lalit Keshav MESTHAPeter Stanley FISHER
    • H04N1/60
    • H04N1/6058
    • 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.
    • 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。
    • 37. 发明申请
    • USING A PARETO FRONTIER TO FIND AN OPTIMAL COLOR SOLUTION FOR SPOT CALIBRATION
    • 使用PARETO FRONTIER寻找最佳颜色解决方案进行点校准
    • US20130088729A1
    • 2013-04-11
    • US13253660
    • 2011-10-05
    • Lina FUAlvaro Enrique GILLalit Keshav MESTHA
    • Lina FUAlvaro Enrique GILLalit Keshav MESTHA
    • H04N1/60
    • H04N1/60H04N1/54
    • What is disclosed is a method for determining a color solution which achieves color objectives for a color marking device involves performing the following. In one embodiment, N objectives of interest are identified for a color marking device and a N-dimensional Pareto Front is constructed which comprises a collection of color solutions which accommodates those objectives. The Pareto Front is constructed using an optimization process based upon printer models of the objectives. Color solutions can be at least one color recipe, or a combination of color recipes and process actuators. A target point is selected in an N-dimensional objective space based upon at least one user-selected preference. The target point is then mapped to a point on the Pareto Front. The mapping identifies one of the color solutions which, in turn, is used to generate a spot color for the device. The generated spot color achieves the user-selected preference.
    • 所公开的是确定实现彩色标记装置的色彩目标的色彩解决方案的方法,包括执行以下操作。 在一个实施例中,为彩色标记装置识别出感兴趣的N个目标,并且构造了包括适应这些目标的颜色解决方案集合的N维帕累托前端。 帕累托前面采用基于目标打印机模型的优化过程构建。 颜色解决方案可以是至少一种颜色配方,或颜色配方和过程执行器的组合。 基于至少一个用户选择的偏好在N维目标空间中选择目标点。 目标点然后映射到帕累托阵线上的一个点。 该映射标识了颜色解决方案之一,而这些颜色解决方案又被用于生成设备的专色。 生成的专色实现了用户选择的偏好。
    • 38. 发明申请
    • 3D IMAGING USING STRUCTURED LIGHT FOR ACCURATE VEHICLE OCCUPANCY DETECTION
    • 使用结构光进行三维成像以实现精确的车辆检测
    • US20130307932A1
    • 2013-11-21
    • US13476334
    • 2012-05-21
    • Lalit Keshav MESTHAYonghui ZHAO
    • Lalit Keshav MESTHAYonghui ZHAO
    • H04N13/02H04N5/225H04N5/33
    • G01S17/89G01B11/2513G01S17/003G06K9/00201G06K9/00838H04N5/33
    • What is disclosed is a method which combines structured illumination in the SWIR wavelength range with the detection capabilities of NIR to generate a 3D image of a scene for accurate vehicle occupancy determination. In one embodiment, structured light is projected through a customized optical element comprising a patterned grid. Wavelengths of the received structured pattern are shifted to a CCD detectable range. The shifted light comprises an image in a structured pattern. The wavelength-shifted light is detected using an infrared detector operating in the NIR. For each pixel in the detected patterned image, an amount of distortion caused by 3D surface variation at this pixel location is determined. The distortion is converted to a depth value. The process repeats for all pixels. A 3D image is constructed using each pixel's depth value. The number of occupants in the vehicle is determined from the constructed 3D image.
    • 所公开的是将SWIR波长范围内的结构照明与NIR的检测能力相结合的方法,以产生用于准确车辆占用确定的场景的3D图像。 在一个实施例中,结构化光通过包括图案化网格的定制光学元件投影。 接收到的结构化图案的波长被移动到CCD可检测范围。 移动的光包括结构化图案中的图像。 使用在NIR中操作的红外检测器来检测波长偏移的光。 对于检测到的图案化图像中的每个像素,确定由该像素位置处的3D表面变化引起的失真量。 失真转换为深度值。 该过程重复所有像素。 使用每个像素的深度值构建3D图像。 从构建的3D图像确定车辆中的乘客人数。
    • 39. 发明申请
    • COMPENSATING FOR SPECTRAL DIFFERENCES BETWEEN TWO SPECTROPHOTOMETERS FOR ACCURATE COLOR MANAGEMENT
    • 对两种光谱仪之间的光谱差异进行精确色彩管理的补偿
    • US20120296595A1
    • 2012-11-22
    • US13108544
    • 2011-05-16
    • Edul N. DALALLalit Keshav MESTHAWencheng WU
    • Edul N. DALALLalit Keshav MESTHAWencheng WU
    • G06F19/00
    • G01J3/501G01J3/524H04N1/6052
    • What is disclosed is a system and method for compensating for differences between two spectrophotometers for accurate color control in a color management system. In one example embodiment, at least one print is generated on the digital color printing system incorporating an inline spectral reflectance measurement sensor. A spectral reflectance of the print is measured using an inline spectral reflectance measurement sensor. Spectral reflectance of the print is measured using a selected offline spectral reflectance measurement sensor. From the measurements, a sensor correction model is determined which transforms spectral measurements obtained from the inline sensor into spectra approximating what the offline sensor would measure. The sensor correction model is used to perform color management on the digital color printing system such that print output of the digital color printing system is accurate when measured on the offline sensor.
    • 公开的是用于补偿两种分光光度计之间在色彩管理系统中精确色彩控制的差异的系统和方法。 在一个示例实施例中,在包含内联光谱反射测量传感器的数字彩色打印系统上产生至少一个打印。 使用在线光谱反射率测量传感器测量打印的光谱反射率。 使用选定的离线光谱反射率测量传感器测量打印的光谱反射率。 从测量中,确定传感器校正模型,其将从在线传感器获得的光谱测量值变换为近似离线传感器将测量的光谱。 传感器校正模型用于在数字彩色打印系统上执行颜色管理,使得在离线传感器上测量时数字彩色打印系统的打印输出是准确的。