公开(公告)号：US08050601B2

公开(公告)日：2011-11-01

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

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：USRE42673E1

公开(公告)日：2011-09-06

申请号：US12782812

申请日：2010-05-19

申请人： Lalit K. Mestha

发明人： Lalit K. Mestha

IPC分类号： H04N1/60 ,  H04N1/50

CPC分类号： H04N1/60 ,  H04N1/6033

摘要： The color management system comprises a state-space based model for a pixel element in a dynamically varying color marking device. A sensor measures the color of the printed output for construction of a selected set of sensitivity functions representative of color output relating to inputs. The gradients of the sensitivity functions are extracted and used to develop the corresponding discrete multivariable state-space model of the pixel element. More particularly, the model is constructed from the Jacobian matrix characterizing a change in measured color output for a change in input color values of the pixel. Extension of modeling methodology for a single pixel is applied to multiple pixel elements.

摘要翻译： 颜色管理系统包括基于状态空间的模型，用于动态变化的颜色标记装置中的像素元件。 传感器测量打印输出的颜色，以构建表示与输入相关的颜色输出的所选择的一组灵敏度函数。 提取灵敏度函数的梯度，并用于开发像素元素的相应离散多变量状态空间模型。 更具体地，该模型由雅可比矩阵构成，其表征用于像素的输入颜色值的变化的测量的颜色输出的变化。 将单个像素的建模方法的扩展应用于多个像素元素。

公开(公告)号：US07929887B2

公开(公告)日：2011-04-19

申请号：US12362907

申请日：2009-01-30

申请人： Lalit K. Mestha ,  Pinyen Lin ,  Baomin Xu ,  John G. Shaw ,  Palghat Ramesh ,  Peter Michael Gulvin

发明人： Lalit K. Mestha ,  Pinyen Lin ,  Baomin Xu ,  John G. Shaw ,  Palghat Ramesh ,  Peter Michael Gulvin

IPC分类号： G03G15/08

CPC分类号： G03G15/344

摘要： Exemplary embodiments provide a direct imaging system and methods for direct marking an image using the system. The disclosed direct imaging system can eliminate the creation of a latent image and can be used in an electrophotographic machine and related processes. Specifically, the direct imaging system can include a direct marking substrate (e.g., a printing substrate) and a development belt member closely spaced from the direct marking substrate. In one embodiment, the development belt member can include a plurality of actuator cells with each actuator cell controllably addressable to eject one or more toner particles adhered thereto. The ejected toner particles can transit the space between the donor belt member and the direct marking substrate, and directly marking onto the direct marking substrate forming an image.

摘要翻译： 示例性实施例提供直接成像系统和用于使用该系统直接标记图像的方法。 所公开的直接成像系统可以消除潜像的产生，并且可以用于电子照相机和相关过程。 具体地，直接成像系统可以包括直接标记衬底（例如，印刷衬底）和与直接标记衬底紧密间隔开的显影带构件。 在一个实施例中，显影带构件可以包括多个致动器单元，每个致动器单元可控制地寻址以喷射粘附到其上的一个或多个调色剂颗粒。 排出的调色剂颗粒可以通过供体带构件和直接标记衬底之间的空间，并直接标记到形成图像的直接标记衬底上。

公开(公告)号：US07505173B2

公开(公告)日：2009-03-17

申请号：US11170928

申请日：2005-06-30

申请人： R. Enrique Viturro ,  Lalit K. Mestha

发明人： R. Enrique Viturro ,  Lalit K. Mestha

IPC分类号： G06F15/00

CPC分类号： G06F15/00 ,  G03G15/01 ,  G03G2215/0161 ,  H04N1/4015 ,  H04N1/6033

摘要： The method and system for printer color calibration use a combination of a full-width array (FWA) or similar page-scanning mechanism in conjunction with a spectrophotometer color measurement system in the output path of a color printer for measuring colors with or without requiring any manual operations or operator involvement. The automatic color balance control system produces spatial tonal reproduction values for the primary colors by printing patches, measuring colors using the sensor combination and automatically readjusting the spatial tone reproduction curves until a satisfactory level of printed color accuracy and uniformity are obtained.

摘要翻译： 打印机颜色校准的方法和系统使用全色阵列（FWA）或类似的页面扫描机构与彩色打印机的输出路径中的分光光度计颜色测量系统的组合，用于测量或不需要任何颜色的颜色 手动操作或操作员参与。 自动色彩平衡控制系统通过打印色块，通过使用传感器组合测量颜色并自动调整空间色调再现曲线，直到获得令人满意的打印色彩精度和均匀度的水平，为原色产生原色的空间色调再现值。

公开(公告)号：US07277196B2

公开(公告)日：2007-10-02

申请号：US10342873

申请日：2003-01-15

申请人： Jean-Pierre R. M. Van de Capelle ,  Lalit K. Mestha ,  Robert P. Loce ,  Raja Bala ,  Martin S. Maltz ,  Peter A. Crean

发明人： Jean-Pierre R. M. Van de Capelle ,  Lalit K. Mestha ,  Robert P. Loce ,  Raja Bala ,  Martin S. Maltz ,  Peter A. Crean

IPC分类号： G06F15/00

CPC分类号： H04N1/4078 ,  H04N1/6033

摘要： A system and method for printer control and color balance calibration. The system and method address the image quality problems of print engine instability, low quality of color balance and contouring from the calibration. The method includes defining combinations of colorants, such as inks or toners that will be used to print images, defining a desired response for the combinations that are to be used and, in real time, iteratively printing CMY halftone color patches, measuring the printed patches via an in situ sensor and iteratively performing color-balance calibration based on the measurements, accumulating corrections until the measurements are within a predetermined proximity of the desired response. The calibration is performed on the halftones while they are in a high quantization resolution form.

摘要翻译： 一种用于打印机控制和色平衡校准的系统和方法。 该系统和方法解决了打印引擎不稳定的图像质量问题，色彩平衡质量差和校准轮廓。 该方法包括定义着色剂的组合，例如将用于打印图像的油墨或调色剂，为要使用的组合定义期望的响应，并且实时迭代地打印CMY半色调色块，测量印刷的贴片 通过原位传感器并且基于测量迭代地执行色平衡校准，累积校正直到测量值在所需响应的预定接近度内。 校准在半色调上进行，而它们处于高量化分辨率形式。

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：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：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。