公开(公告)号：US07385704B2

公开(公告)日：2008-06-10

申请号：US11092635

申请日：2005-03-30

申请人： Lalit K. Mestha ,  Joel A. Kubby ,  Yao Rong Wang

发明人： Lalit K. Mestha ,  Joel A. Kubby ,  Yao Rong Wang

IPC分类号： G01B9/02 ,  G01J3/45

CPC分类号： G01J3/2823 ,  G01J3/26 ,  G01N21/255 ,  G01N21/31 ,  G02B26/001

摘要： A low cost spectral camera may include a multiple Fabry-Perot cavity filter with silicon photodetectors distributed one beside another in a two-dimensional matrix fashion. Each cavity may be designed to capture a pixel from an image. The two-dimensional fabry-perot array may function as a sensor to capture an image in spectral form. Spectral information may be obtained to generate spectral displays.

摘要翻译： 低成本光谱相机可以包括具有硅光电探测器的多个法布里 - 珀罗腔滤波器，其以二维矩阵方式彼此分布。 每个空腔可被设计成从图像中捕获像素。 二维fabry-perot阵列可以用作传感器以以光谱形式捕获图像。 可以获得光谱信息以产生光谱显示。

公开(公告)号：US07339704B2

公开(公告)日：2008-03-04

申请号：US10465457

申请日：2003-06-19

申请人： Lalit K. Mestha ,  Norman W. Zeck ,  Kenneth J. Mihalyov ,  Gaurav Sharma

发明人： Lalit K. Mestha ,  Norman W. Zeck ,  Kenneth J. Mihalyov ,  Gaurav Sharma

IPC分类号： H04N1/50 ,  H04N1/56 ,  G06K9/00

CPC分类号： H04N1/6025 ,  H04N1/6055

摘要： The present invention implements a CMYK to CMYK pre-transform in front of at least one printer to be clustered where the transform is designed to ensure that the printers addressed through the pre-transform have substantially identical output color for substantially identical input CMYK values. As one form of implementation a method is disclosed to build CMY to CMY 3D-LUTs and 1D-LUT for K using sensors in the field. Making use of a system LUT—CMY to CMY 3D-LUT and a K to K 1D-LUT—improves consistency and provides a coherent control strategy and a means to provide standardized input CMY and K values in a clustered environment so that single or multiple vendor DFEs see substantially identical CMYK values.

摘要翻译： 本发明在至少一个打印机之前实现CMYK到CMYK预变换，以便将变换设计成保证通过预变换寻址的打印机对于基本上相同的输入CMYK值具有基本相同的输出颜色。 作为实现的一种形式，公开了一种使用现场传感器构建CMY到CMY 3D-LUT和1D-LUT的方法。 利用系统LUT-CMY到CMY 3D-LUT和K至K 1D-LUT提高了一致性，并提供了一致的控制策略，并提供了一种在集群环境中提供标准化输入CMY和K值的方法，使单个或多个 供应商DFE看到基本相同的CMYK值。

公开(公告)号：US09020185B2

公开(公告)日：2015-04-28

申请号：US13247575

申请日：2011-09-28

申请人： Lalit K. Mestha ,  Beilei Xu

发明人： Lalit K. Mestha ,  Beilei Xu

IPC分类号： G06K9/00 ,  A61B5/00 ,  A61B5/024 ,  G06K9/20

CPC分类号： A61B5/0075 ,  A61B5/0077 ,  A61B5/024 ,  A61B5/7257 ,  G06K9/00362 ,  G06K9/0051 ,  G06K9/0057 ,  G06K9/2018 ,  G06K2009/00939 ,  G06T7/0016 ,  G06T2207/10024 ,  G06T2207/10048 ,  G06T2207/30076

摘要： An embodiment generally relates to systems and methods for estimating heart rates of individuals using non-contact imaging. A processing module can process multi-spectral video images of individuals and detect skin blobs within different images of the multi-spectral video images. The skin blobs can be converted into time series signals and processed with a band pass filter. Further, the time series signals can be processed to separate pulse signals from unnecessary signals. The heart rate of the individual can be estimated according to the resulting time series signal processing.

摘要翻译： 一个实施方案通常涉及用于估计使用非接触成像的个体心率的系统和方法。 处理模块可以处理个体的多光谱视频图像并检测多光谱视频图像的不同图像内的皮肤斑点。 皮肤斑点可以转换成时间序列信号，并用带通滤波器处理。 此外，时间序列信号可以被处理以将脉冲信号与不必要的信号分开。 可以根据所得到的时间序列信号处理来估计个体的心率。

公开(公告)号：US20130070957A1

公开(公告)日：2013-03-21

申请号：US13233780

申请日：2011-09-15

申请人： Yeqing Zhang ,  Beilei Xu ,  Lalit K. Mestha ,  Graham Pennington

发明人： Yeqing Zhang ,  Beilei Xu ,  Lalit K. Mestha ,  Graham Pennington

IPC分类号： G06K9/00

CPC分类号： G06K9/3241 ,  G06K9/00362 ,  G06K9/3233

摘要： An embodiment generally relates to systems and methods for determining cell phone usage automatically by individuals operating vehicles. A processing module can process multi-spectral images or videos of individuals and detect different regions in the image such as face regions, hand regions, and cell phone regions. Further, the processing module can analyze the regions based on locations and numbers of skin pixels and cell phone pixels to determine if the individual is holding his or her cell phone near his or her face. Based on the analysis, it can be determined whether the individual is operating the cell phone. Further, the analysis can yield a confidence level associated with the cell phone usage.

摘要翻译： 实施例一般涉及用于由个人操作车辆自动确定手机使用的系统和方法。 处理模块可以处理个人的多光谱图像或视频，并检测图像中的不同区域，例如面部区域，手区域和蜂窝电话区域。 此外，处理模块可以基于皮肤像素和手机像素的位置和数量来分析区域，以确定个体是否将他或她的手机保持在他或她的脸部附近。 基于分析，可以确定个人是否在操作手机。 此外，分析可以产生与手机使用相关联的置信水平。

公开(公告)号：US08210690B2

公开(公告)日：2012-07-03

申请号：US12568074

申请日：2009-09-28

申请人： Peter M. Gulvin ,  Lalit K. Mestha ,  Yao Rong Wang ,  Pinyen Lin

发明人： Peter M. Gulvin ,  Lalit K. Mestha ,  Yao Rong Wang ,  Pinyen Lin

IPC分类号： G03B21/14 ,  G03B21/60 ,  G02B5/22 ,  G01J3/45 ,  G01B9/02

CPC分类号： G02B26/001 ,  G02B3/0062 ,  G03B21/005 ,  G03B21/14 ,  G09G3/001 ,  G09G3/2018 ,  G09G3/3466

摘要： A projection system includes a display apparatus comprising a plurality of tunable Fabry-Perot filters, each of the filters being configured for shifting between a state in which the filter transmits radiation in a bandwidth in the visible range of the electromagnetic spectrum and a state in which the filter transmits radiation in a bandwidth outside the visible range of the electromagnetic spectrum. An illuminator provides light to the plurality of Fabry-Perot filters. A control system receives image data and controls the display apparatus to project an image onto an associated display surface. The control system includes a modulator which provides wavelength modulation signals to the plurality of Fabry-Perot filters to modulate a color of pixels in the image and causes selected ones of the Fabry-Perot filters to shift into the bandwidth outside the visible range to modulate the brightness of pixels in the image.

摘要翻译： 投影系统包括：显示装置，包括多个可调的法布里 - 珀罗滤光器，每个滤光器被配置为在滤光器在电磁光谱的可见光范围内的带宽中透射辐射的状态和 滤波器在电磁光谱的可见范围之外的带宽内传输辐射。 照明器向多个法布里 - 珀罗滤光器提供光。 控制系统接收图像数据并控制显示装置将图像投影到相关联的显示表面上。 该控制系统包括调制器，该调制器向多个法布里 - 珀罗滤波器提供波长调制信号，以调制图像中的像素的颜色，并使选定的法布里 - 珀罗滤波器转移到可见光范围之外的带宽中，以调制 图像中像素的亮度。

公开(公告)号：US07839498B2

公开(公告)日：2010-11-23

申请号：US11797062

申请日：2007-04-30

申请人： Lalit K. Mestha ,  Sohail A. Dianat ,  Francesca G. Polo ,  Gary W. Skinner

发明人： Lalit K. Mestha ,  Sohail A. Dianat ,  Francesca G. Polo ,  Gary W. Skinner

IPC分类号： G01J3/40 ,  G02B25/04

CPC分类号： G01J3/28 ,  G01J3/46 ,  G01J3/462 ,  G01J3/50 ,  G01J3/501 ,  G01J3/524 ,  G01J2003/466 ,  G06F17/30289 ,  H04N1/6033 ,  Y10S707/99937

摘要： To determine spectra, integrated multiple illuminant measurements from a non-fully illuminant populated color sensor may be converted into a fully populated spectral curve using a reference database. The reference database is partitioned into a plurality of clusters, and an appropriate centroid is determined for each cluster by, for example, vector quantization. Training samples that form the reference database may be assigned to the clusters by comparing the Euclidean distance between the centroids and the sample under consideration, and assigning each sample to the cluster having the centroid with the shortest Euclidean distance. When all training samples have been assigned, the resulting structure is stored as the reference database. When reconstructing the spectra for new measurements from the sensor, the Euclidean distances between actual color samples under measurement and each cluster centroid are measured. The spectra are then reconstructed using only the training samples from the cluster corresponding to the shortest Euclidean distance, resulting in improved speed and accuracy.

摘要翻译： 为了确定光谱，可以使用参考数据库将来自非完全光源的填充颜色传感器的集成多个光源测量值转换为完全填充的光谱曲线。 参考数据库被划分成多个簇，并且通过例如向量量化为每个簇确定适当的质心。 形成参考数据库的训练样本可以通过比较质心和所考虑的样本之间的欧氏距离，并将每个样本分配给具有最短欧几里德距离的质心的群集来分配给群集。 当所有训练样本都被分配后，结果存储为参考数据库。 当从传感器重建新测量的光谱时，测量测量下的实际颜色样本与每个聚类质心之间的欧氏距离。 然后使用仅对应于最短欧几里得距离的簇的训练样本重建光谱，从而提高速度和精度。

公开(公告)号：US20090190964A1

公开(公告)日：2009-07-30

申请号：US12019051

申请日：2008-01-24

申请人： Pinyen Lin ,  Baomin Xu ,  Lalit K. Mestha

发明人： Pinyen Lin ,  Baomin Xu ,  Lalit K. Mestha

IPC分类号： G03G15/08 ,  H01L41/16 ,  H01L41/08 ,  H01L41/22

CPC分类号： G03G15/0818 ,  G03G2215/0861 ,  H01L41/0986 ,  H01L41/313 ,  Y10T29/42 ,  Y10T29/49544

摘要： Exemplary embodiments provide a roll member that includes one or more piezoelectric tape and methods for making and using the roll member. The piezoelectric tape can be flexible and include a plurality of piezoelectric elements configured in a manner that the piezoelectric elements can be addressed individually or as groups with various numbers of elements in each group. In an exemplary embodiment, the disclosed roll member can be used as a donor roll for a development system of an electrophotographic printing machine to create controlled and desired toner powder cloud for high quality image development, such as an image on image development in a hybrid scavengeless development (HSD) system.

摘要翻译： 示例性实施例提供了包括一个或多个压电带的辊构件以及用于制造和使用辊构件的方法。 压电带可以是柔性的并且包括多个压电元件，这些压电元件被配置成使得压电元件可以被单独地寻址或者作为在每个组中具有各种元件数量的组。 在一个示例性实施例中，所公开的辊构件可以用作电子照相印刷机的显影系统的供体辊，以产生用于高质量图像显影的受控和期望的调色剂粉末，例如混合扫描器中图像显影的图像 开发（HSD）系统。

公开(公告)号：US07561133B2

公开(公告)日：2009-07-14

申请号：US11319395

申请日：2005-12-29

申请人： Lalit K. Mestha ,  Peter M. Gulvin ,  Pinyen Lin ,  Yao Rong Wang

发明人： Lalit K. Mestha ,  Peter M. Gulvin ,  Pinyen Lin ,  Yao Rong Wang

IPC分类号： G09G3/36

CPC分类号： G02B26/001 ,  G03B21/005

摘要： An apparatus may include an illuminator, a controller, a display panel, a modulator, and a plurality of Fabry-Perot cavities. The plurality of Fabry-Perot cavities generated an image from light provided by the illuminator, each pixel of the image corresponding to a respective one of the plurality of Fabry-Perot cavities. The controller controls the modulator to provide image modulation data to the plurality of Fabry-Perot cavities for generating the image, the modulator providing color information to a first cavity of the plurality of Fabry-Perot cavities for setting a size of the first cavity to correspond to a color of a first pixel of the image, the modulator providing gray level information to the first cavity for time-division multiplexing to correspond to a gray level of the first pixel. The display panel display pixels of the generated image based on colors and gray levels of each pixel of the generated image.

摘要翻译： 装置可以包括照明器，控制器，显示面板，调制器和多个法布里 - 珀罗腔。 多个法布里 - 珀罗腔由照明器提供的光产生图像，图像的每个像素对应于多个法布里 - 珀罗腔中的相应一个。 所述控制器控制所述调制器以向所述多个法布里 - 珀罗腔提供图像调制数据以产生图像，所述调制器向所述多个法布里 - 珀罗腔中的第一空腔提供颜色信息，用于将所述第一腔的尺寸设定为对应 对于图像的第一像素的颜色，调制器向第一腔提供灰度信息用于时分复用以对应于第一像素的灰度级。 显示面板基于生成图像的每个像素的颜色和灰度等级来显示生成的图像的像素。

公开(公告)号：US07513952B2

公开(公告)日：2009-04-07

申请号：US10000379

申请日：2001-10-31

申请人： Lalit K. Mestha ,  Yao Rong Wang ,  Kenneth J. Mihalyov

发明人： Lalit K. Mestha ,  Yao Rong Wang ,  Kenneth J. Mihalyov

IPC分类号： B05C11/10

CPC分类号： G01J3/46 ,  G01J3/463 ,  G01J3/524

摘要： A color sensor monitors the output of a color producing process and produces a signal representative of a color produced by the color producing process. The signal can be used as feedback signal to control the process. Occasionally, the color sensor signal includes a component representing a transient error. A system model of the color producing process is used to predict reasonable sensor signals. A comparison of the sensor signal with the predicted sensor signals is used to determine if the sensor signal is reasonable. If the sensor signal is unreasonable, a substitute signal is used as the feedback signal to the control process. The substitute signal can be a predicted sensor signal or a signal based on historical system performance data.

摘要翻译： 颜色传感器监测着色产生过程的输出并产生表示由生色过程产生的颜色的信号。 该信号可用作反馈信号来控制过程。 偶尔，颜色传感器信号包括表示瞬时误差的分量。 使用颜色生成过程的系统模型来预测合理的传感器信号。 使用传感器信号与预测传感器信号的比较来确定传感器信号是否合理。 如果传感器信号不合理，则使用替代信号作为控制过程的反馈信号。 替代信号可以是预测的传感器信号或基于历史系统性能数据的信号。

公开(公告)号：US07383261B2

公开(公告)日：2008-06-03

申请号：US10758096

申请日：2004-01-16

申请人： Lalit K. Mestha ,  Sohail A. Dianat ,  Francesca G. Polo ,  Gary W Skinner

发明人： Lalit K. Mestha ,  Sohail A. Dianat ,  Francesca G. Polo ,  Gary W Skinner

IPC分类号： G06F7/00

CPC分类号： G01J3/28 ,  G01J3/46 ,  G01J3/462 ,  G01J3/50 ,  G01J3/501 ,  G01J3/524 ,  G01J2003/466 ,  G06F17/30289 ,  H04N1/6033 ,  Y10S707/99937

摘要： To determine spectra, integrated multiple illuminant measurements from a non-fully illuminant populated color sensor may be converted into a fully populated spectral curve using a reference database. The reference database is partitioned into a plurality of clusters, and an appropriate centroid is determined for each cluster by, for example, vector quantization. Training samples that form the reference database may be assigned to the clusters by comparing the Euclidean distance between the centroids and the sample under consideration, and assigning each sample to the cluster having the centroid with the shortest Euclidean distance. When all training samples have been assigned, the resulting structure is stored as the reference database. When reconstructing the spectra for new measurements from the sensor, the Euclidean distances between actual color samples under measurement and each cluster centroid are measured. The spectra are then reconstructed using only the training samples from the cluster corresponding to the shortest Euclidean distance, resulting in improved speed and accuracy.

摘要翻译： 为了确定光谱，可以使用参考数据库将来自非完全光源的填充颜色传感器的集成多个光源测量值转换为完全填充的光谱曲线。 参考数据库被划分成多个簇，并且通过例如向量量化为每个簇确定适当的质心。 形成参考数据库的训练样本可以通过比较质心和所考虑的样本之间的欧氏距离，并将每个样本分配给具有最短欧几里德距离的质心的群集来分配给群集。 当所有训练样本都被分配后，结果存储为参考数据库。 当从传感器重建新测量的光谱时，测量测量下的实际颜色样本与每个聚类质心之间的欧氏距离。 然后使用仅对应于最短欧几里得距离的簇的训练样本重建光谱，从而提高速度和精度。