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    Measurement and control of high frequency banding in a marking system
    2.
    发明授权
    Measurement and control of high frequency banding in a marking system 有权
    标记系统中高频带测量与控制

    公开(公告)号：US07283143B2

    公开(公告)日：2007-10-16

    申请号：US10852243

    申请日：2004-05-25

    申请人： Howard A. Mizes ,  Beilei Xu ,  Chu-heng Liu ,  Robert P. Loce ,  Michael D. Thompson ,  Eric S. Hamby ,  R. Enrique Viturro

    发明人： Howard A. Mizes ,  Beilei Xu ,  Chu-heng Liu ,  Robert P. Loce ,  Michael D. Thompson ,  Eric S. Hamby ,  R. Enrique Viturro

    IPC分类号： G03G21/00

    CPC分类号： H04N1/00002 ,  H04N1/00015 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/00068 ,  H04N1/00087

    摘要： A method of measuring and controlling high frequency banding, the method includes creating a test pattern, sensing the test pattern with optical sensors, determining a beat frequency based on the sensed test pattern, and determining the frequency, phase and amplitude of high frequency banding based on the beat frequency. An exemplary embodiment of a feedback control method for controlling high frequency banding includes creating a test pattern, sensing the test pattern with optical sensors, measuring high frequency banding and adjusting the imaging parameters based on the measured high frequency banding in order to decrease the extent of high frequency banding. Moreover, an exemplary embodiment of a system for measuring high frequency banding includes an image marking device having a receiving member, optical sensors arranged on the receiving member, and a controller that is functionally coupled to the optical sensors and to the marking device.

    摘要翻译： 一种测量和控制高频带的方法，该方法包括创建测试图案，用光学传感器感测测试图案，基于感测到的测试图案确定拍频，以及确定基于高频带的频率，相位和幅度 在拍频上 用于控制高频带的反馈控制方法的示例性实施例包括创建测试图案，用光学传感器感测测试图案，测量高频带并基于所测量的高频带来调整成像参数，以便降低 高频带。 此外，用于测量高频带的系统的示例性实施例包括具有接收构件的图像标记装置，布置在接收构件上的光学传感器以及功能上耦合到光学传感器和标记装置的控制器。

    Methods and apparatuses for controlling print density
    7.
    发明授权
    Methods and apparatuses for controlling print density 失效
    用于控制打印浓度的方法和装置

    公开(公告)号：US07729015B2

    公开(公告)日：2010-06-01

    申请号：US11313018

    申请日：2005-12-20

    申请人： Howard A. Mizes ,  Robert P. Loce ,  Lalit K. Mestha ,  Peter Paul

    发明人： Howard A. Mizes ,  Robert P. Loce ,  Lalit K. Mestha ,  Peter Paul

    IPC分类号： G06K15/00 ,  H04N1/405 ,  H04N1/46

    CPC分类号： H04N1/6033 ,  H04N1/4015 ,  H04N1/6041

    摘要： Multiple input patches are received on an output media, which patches are characterized by print density representing a document processing system's response to different input grayscale values over a potential response space. Values associated with the print density of each input grayscale value are measured. Reference Engine Response Curves are determined from the measured print density values and input gray scale values. A variance data representative of a difference between each measured print density value and a respective reference Engine Response Curve is determined. The variance data is transformed into individual components. Based at least on one selected individual component, a set of calibration compensating Tone Reproduction Curves is determined. The determined calibration compensating Tone Reproduction Curves are applied to input grayscale values.

    摘要翻译： 在输出介质上接收多个输入补丁，这些补丁的特征在于打印密度，表示文档处理系统对潜在响应空间上的不同输入灰度值的响应。 测量与每个输入灰度值的打印浓度相关联的值。 参考引擎响应曲线由测量的打印浓度值和输入灰度值确定。 确定表示每个测量的打印浓度值和各个参考引擎响应曲线之间的差异的方差数据。 方差数据被转换为单个组件。 至少基于一个所选择的单独组件，确定一组校准补偿音再现曲线。 确定的校准补偿色调再现曲线被应用于输入灰度值。

    Multiple view transportation imaging systems
    8.
    发明授权
    Multiple view transportation imaging systems 有权
    多视图运输成像系统

    公开(公告)号：US08731245B2

    公开(公告)日：2014-05-20

    申请号：US13414167

    申请日：2012-03-07

    申请人： Helen HaeKyung Shin ,  Robert P. Loce ,  Wencheng Wu ,  Thomas F. Wade ,  Peter Paul ,  Edgar Bernal

    发明人： Helen HaeKyung Shin ,  Robert P. Loce ,  Wencheng Wu ,  Thomas F. Wade ,  Peter Paul ,  Edgar Bernal

    IPC分类号： G06K9/00

    CPC分类号： G08G1/04 ,  G08G1/017

    摘要： A camera may be positioned to have a direct view of on-coming vehicle traffic from a first perspective. Additionally, a reflective surface, such as a mirror, may be positioned within the viewing area of the same camera to provide the camera with a reflected view of vehicle traffic from a second perspective. The images recorded by the camera may then be received by a computing device. The computing device may separate the images into a direct view region and a reflected view region. After separation, the regions may be analyzed independently and/or combined with other regions, and the analyzed data may be stored. The regions may be analyzed to determine various vehicle characteristics, including, but not limited to, vehicle speed, license plate identification, vehicle occupancy, vehicle count, and vehicle type.

    摘要翻译： 照相机可以从第一角度定位成直接观看即将到来的车辆交通。 此外，诸如反射镜的反射表面可以被定位在同一照相机的观看区域内，以从第二角度向相机提供车辆交通的反射视图。 然后可以由计算设备接收由相机记录的图像。 计算设备可以将图像分离成直视区域和反射视区。 分离后，可以独立地和/或与其它区域组合分析区域，并且可以存储分析的数据。 可以分析区域以确定各种车辆特性，包括但不限于车辆速度，车牌识别，车辆占用，车辆数量和车辆类型。

    Methods and systems for achieving print uniformity using reduced memory or computational requirements
    9.
    发明授权
    Methods and systems for achieving print uniformity using reduced memory or computational requirements 有权
    使用减少记忆或计算要求实现打印均匀性的方法和系统

    公开(公告)号：US08705120B2

    公开(公告)日：2014-04-22

    申请号：US12786694

    申请日：2010-05-25

    申请人： Yequing (Juliet) Zhang ,  Daniel E. Viassolo ,  Susan J. Zoltner ,  Howard A. Mizes ,  Robert P. Loce

    发明人： Yequing (Juliet) Zhang ,  Daniel E. Viassolo ,  Susan J. Zoltner ,  Howard A. Mizes ,  Robert P. Loce

    IPC分类号： H04N1/46 ,  H04N1/60

    CPC分类号： H04N1/407 ,  H04N1/4097

    摘要： Engine response curves (RCs) can be used for streak compensation for printed documents. A feedback control paradigm can be included to effect RC compensation. Singular Value Decomposition (SVD) can be used to represent each RC in the collection of spatial RC data as a linear combination of basis vectors. RCs are approximated by selecting the first few basis vectors, the approximation aiding in noise rejection and reducing computation in the controller by reducing dimensionality of the RC data from gray levels to the number of SVD bases selected. An optimal subset of RCs is selectable from the set of approximated RCs by clustering the SVD weights, the clustered SVD weights producing TRCs that span all engine response RCs generated by a printer. Compensation RCs are constructible using reduced number of bases and clustered SVD weights.

    摘要翻译： 发动机响应曲线（RC）可用于印刷文件的条纹补偿。 可以包括反馈控制范例来实现RC补偿。 奇异值分解（SVD）可以用于将空间RC数据的集合中的每个RC表示为基向量的线性组合。 通过选择前几个基本矢量近似，近似有助于噪声抑制，并通过将RC数据从灰度级降低到所选择的SVD基数来减少控制器中的计算。 通过对SVD权重进行聚类，可从集合的近似RC中选择RC的最佳子集，产生跨越由打印机产生的所有发动机响应RC的TRC的聚类SVD权重。 补偿RC可以使用减少的基数和聚类SVD权重来构建。

    Methods and systems achieving print uniformity using reduced memory or computational requirements
    10.
    发明授权
    Methods and systems achieving print uniformity using reduced memory or computational requirements 有权
    使用减少的记忆或计算要求实现打印均匀性的方法和系统

    公开(公告)号：US08305660B2

    公开(公告)日：2012-11-06

    申请号：US10922316

    申请日：2004-08-19

    申请人： Yeqing (Juliet) Zhang ,  Daniel E. Viassolo ,  Susan J. Zoltner ,  Howard A. Mizes ,  Robert P. Loce

    发明人： Yeqing (Juliet) Zhang ,  Daniel E. Viassolo ,  Susan J. Zoltner ,  Howard A. Mizes ,  Robert P. Loce

    IPC分类号： H04N1/46 ,  H04N1/42

    CPC分类号： H04N1/407 ,  H04N1/4097

    摘要： Engine response curves (RCs) can be used for streak compensation for printed documents. A feedback control paradigm can be included to effect RC compensation. Singular Value Decomposition (SVD) can be used to represent each RC in the collection of spatial RC data as a linear combination of basis vectors. RCs are approximated by selecting the first few basis vectors, the approximation aiding in noise rejection and reducing computation in the controller by reducing dimensionality of the RC data from gray levels to the number of SVD bases selected. An optimal subset of RCs is selectable from the set of approximated RCs by clustering the SVD weights, the clustered SVD weights producing TRCs that span all engine response RCs generated by a printer. Compensation RCs are constructible using reduced number of bases and clustered SVD weights.

    摘要翻译： 发动机响应曲线（RC）可用于印刷文件的条纹补偿。 可以包括反馈控制范例来实现RC补偿。 奇异值分解（SVD）可以用于将空间RC数据的集合中的每个RC表示为基向量的线性组合。 通过选择前几个基本矢量近似，近似有助于噪声抑制，并通过将RC数据从灰度级降低到所选择的SVD基数来减少控制器中的计算。 通过对SVD权重进行聚类，可从集合的近似RC中选择RC的最佳子集，产生跨越由打印机产生的所有发动机响应RC的TRC的聚类SVD权重。 补偿RC可以使用减少的基数和聚类SVD权重来构建。