公开(公告)号：US08760317B2

公开(公告)日：2014-06-24

申请号：US13284286

申请日：2011-10-28

申请人： Peter Paul ,  Mark Cantelli ,  Beilei Xu ,  Abu Islam

发明人： Peter Paul ,  Mark Cantelli ,  Beilei Xu ,  Abu Islam

IPC分类号： G08G1/01

CPC分类号： G08G1/0175 ,  G08G1/0116

摘要： An upstream vehicle detection system captures images of a vehicle as it travels through a high occupancy vehicle (HOV) lane or high occupancy vehicle tolling (HOT) station and generates an hypothesis as to whether the vehicle is complying with HOV or HOT rules based on image analysis. A database of historical information about various vehicles' compliance with HOV or HOT rules is consulted to determine whether the vehicle has previously been identified as a potential violator and pulled over by law enforcement as a result. If the vehicle was previously pulled over by law enforcement and determined to be complying with HOV or HOT rules (a false positive), then the violation hypothesis may be weighted in favor of not pulling the vehicle over.

摘要翻译： 上游车辆检测系统在行驶通过高占用车辆（HOV）车道或高占用车辆收费站（HOT）站时捕获车辆的图像，并产生关于车辆是否符合基于图像的HOV或HOT规则的假设 分析。 咨询有关各种车辆符合HOV或HOT规则的历史信息数据库，以确定车辆以前是否被确定为潜在的违规者，并因此被执法人员拖欠。 如果车辆以前被执法人员拉扯，并决定遵守HOV或HOT规则（假阳性），则违反假设可能被加权，有利于不拉车。

公开(公告)号：US08600227B2

公开(公告)日：2013-12-03

申请号：US13239642

申请日：2011-09-22

申请人： Beilei Xu ,  Lalit Keshav Mestha ,  Yao Rong Wang ,  Peter Paul

发明人： Beilei Xu ,  Lalit Keshav Mestha ,  Yao Rong Wang ,  Peter Paul

IPC分类号： G03B11/00

CPC分类号： G06K9/209 ,  G01J3/2823 ,  G01J3/36 ,  G02B5/201 ,  G02B5/208 ,  G03B11/00 ,  G06K9/00255 ,  G06K2009/00932

摘要： A filter array for a multi-resolution multi-spectral camera system is described which not only captures 2D images at multiple wavelength bands simultaneously but also at a spatial resolution that meets the demand for spatial feature extraction. The present system optimizes filter bands that provide high image contrast at the highest possible resolution to enable spatial feature extraction and other wavelength bands at lower resolution to achieve maximum number of wavelength bands (e.g. spectral resolution) for multi-spectral analysis. After determining the required spatial resolution and number of wavelength bands for spectral analysis, multiple filters are arranged in a geometric pattern with each filter being designed to have specified wavelength and spatial resolution. Physical sizes of filters differ within each filter group. This maximizes the detector usage while optimizing the trade-off between spatial resolution and spectral resolution. Filter gaps are fixed or tuned to wavelengths of interest.

摘要翻译： 描述了用于多分辨率多光谱照相机系统的滤光器阵列，其不仅在多个波长带同时捕获2D图像，而且以满足空间特征提取需求的空间分辨率捕获。 本系统优化以最高可能分辨率提供高图像对比度的滤波器频带，以便能够以较低分辨率进行空间特征提取和其他波长带，以实现用于多光谱分析的最大数量的波段（例如光谱分辨率）。 在确定所需的空间分辨率和用于频谱分析的波长带数之后，多个滤波器以几何图形排列，每个滤波器被设计为具有指定的波长和空间分辨率。 每个过滤器组中过滤器的物理尺寸不同。 这最大限度地提高了检测器的使用率，同时优化了空间分辨率和光谱分辨率之间的折衷。 滤波器间隙固定或调谐到感兴趣的波长。

公开(公告)号：US08422899B2

公开(公告)日：2013-04-16

申请号：US12966211

申请日：2010-12-13

申请人： Palghat S. Ramesh ,  Peter Paul

发明人： Palghat S. Ramesh ,  Peter Paul

IPC分类号： G03G15/00

CPC分类号： G03G15/5058 ,  G03G15/0189 ,  G03G15/5062

摘要： A method for compensation of banding in a marking platform includes: initiating a calibration stage; marking a test pattern over multiple intervals of a lowest fundamental frequency among marking modules; obtaining image data for the test pattern from a sensor; obtaining 1x signals from sensors associated with the marking modules; and processing the image data in relation to the 1x signals to form banding profiles for multiple marking modules. Alternatively, the method may include: processing image data in relation to 1x signals to form banding profiles for multiple marking modules; determining amplitudes in multiple banding profiles exceeds a threshold to identify dominant banding profiles; and processing dominant banding profiles to form dominant banding signatures. Alternatively, the method may include: initiating a correction stage; obtaining 1x signals from sensors associated with dominant marking modules; and periodically processing dominant banding signatures and 1x signals to determine a banding compensation value.

摘要翻译： 用于补偿标记平台中的条带的方法包括：启动校准阶段; 在标记模块之间的最低基频的多个间隔上标记测试图案; 从传感器获取测试图案的图像数据; 从与标记模块相关联的传感器获取1x信号; 并处理与1x信号相关的图像数据，以形成多个标记模块的条带轮廓。 或者，该方法可以包括：处理与1x信号相关的图像数据，以形成多个标记模块的条带简档; 确定多个条带轮廓中的幅度超过阈值以识别主要条带轮廓; 并处理主要条带轮廓以形成主要条带签名。 或者，该方法可以包括：启动校正阶段; 从与主要标记模块相关的传感器获取1x信号; 并且周期性地处理主要条带签名和1x信号以确定条带补偿值。

公开(公告)号：US20130083303A1

公开(公告)日：2013-04-04

申请号：US13252943

申请日：2011-10-04

申请人： Martin E. Hoover ,  Peter Paul ,  Robert P. Loce

发明人： Martin E. Hoover ,  Peter Paul ,  Robert P. Loce

IPC分类号： G03B27/42

CPC分类号： B41J2/465

摘要： An imaging system utilizes an anamorphic optical system to concentrate a two-dimensional modulated light field in a process direction such that a one-dimensional scan line image extending in a cross-process direction is generated on an imaging surface. The modulated light field is generated by directing homogeneous light onto light modulating elements arranged in a two-dimensional array. The array is configured using a scan line image data group made up of pixel image data portions. An associated group of the light modulating elements aligned in the process direction is configured by each pixel image data portion. When a pixel value is “partially on” (i.e., between “fully on” and “fully off”), the light modulating elements of the associated group are configured such that modulating elements located in the center of each group are activated, and elements located on the upper and lower ends of each group are deactivated.

摘要翻译： 成像系统利用变形光学系统将二维调制光场集中在处理方向上，使得在成像表面上产生沿交叉处理方向延伸的一维扫描线图像。 通过将均匀的光引导到以二维阵列布置的光调制元件上而产生调制光场。 使用由像素图像数据部分构成的扫描线图像数据组来配置阵列。 由处理方向对准的光调制元件的相关组由每个像素图像数据部分构成。 当像素值部分打开时（即在完全打开和完全关闭之间），相关联的组的光调制元件被配置为使得位于每个组的中心的调制元件被激活，并且位于上部和下部的元件 每组的末端都被停用。

公开(公告)号：US08351079B2

公开(公告)日：2013-01-08

申请号：US12555275

申请日：2009-09-08

申请人： Palghat Ramesh ,  Peter Paul

发明人： Palghat Ramesh ,  Peter Paul

IPC分类号： G06F15/00

CPC分类号： H04N1/29 ,  G03G15/0194 ,  G03G15/5062 ,  G03G2215/0129 ,  G03G2215/0161 ,  H04N1/506

摘要： A method, system, and computer program product for estimating a banding profile in an image printing system is disclosed. The method includes obtaining image data across multiple measurement intervals by a sensor; combining the image data with timing information into a coherent signal by a processor; determining aperiodic components of the coherent signal by the processor; determining the periodic component of the coherent signal using spline interpolation, wherein the periodic component represents a banding profile, by the processor; and printing an output print with a correction applied based on the banding profile.

摘要翻译： 公开了一种用于估计图像打印系统中的条带轮廓的方法，系统和计算机程序产品。 该方法包括通过传感器跨多个测量间隔获得图像数据; 通过处理器将图像数据与定时信息组合成相干信号; 由处理器确定相干信号的非周期分量; 使用所述处理器，使用样条插值来确定所述相干信号的周期分量，其中所述周期分量表示条带简档; 并且基于条带轮廓来打印具有应用的校正的输出打印。

公开(公告)号：US20120250037A1

公开(公告)日：2012-10-04

申请号：US13074267

申请日：2011-03-29

申请人： Palghat S. Ramesh ,  Peter Paul

发明人： Palghat S. Ramesh ,  Peter Paul

IPC分类号： G06K15/02

CPC分类号： B41J2/2135

摘要： A method for compensation of banding in a marking platform includes: initiating a signature learning mode; establishing a timing reference after marking modules have achieved constant velocity; marking a test pattern over multiple intervals of a lowest fundamental frequency among marking modules; obtaining image data for the test pattern from a sensor; and processing the image data in relation to the timing reference to form banding profiles for multiple banding sources. Alternatively, the method may include: initiating a cycle up stage in a phase learning mode; establishing a timing reference after marking modules have achieved constant velocity; marking a test pattern over multiple intervals of a lowest fundamental frequency among marking modules; obtaining banding image data for the test pattern from a sensor; and processing the image data with banding signatures in relation to the timing reference to form phase estimates for each banding signature. Additional embodiments are also provided.

摘要翻译： 一种用于在标记平台中补偿条带的方法包括：启动签名学习模式; 标记模块后建立定时参考值达到恒速; 在标记模块之间的最低基频的多个间隔上标记测试图案; 从传感器获取测试图案的图像数据; 并且相对于定时参考处理图像数据以形成多个条带源的条带简档。 或者，该方法可以包括：在相位学习模式中启动循环向上阶段; 标记模块后建立定时参考值达到恒速; 在标记模块之间的最低基频的多个间隔上标记测试图案; 从传感器获取测试图案的条带图像数据; 并且使用与定时参考相关的条带签名来处理图像数据，以形成每个条带签名的相位估计。 还提供了另外的实施例。

公开(公告)号：US07794042B2

公开(公告)日：2010-09-14

申请号：US12471924

申请日：2009-05-26

申请人： Howard A. Mizes ,  Peter Paul ,  Stanley J. Wallace ,  Michael D. Borton ,  Kenneth R. Ossman

发明人： Howard A. Mizes ,  Peter Paul ,  Stanley J. Wallace ,  Michael D. Borton ,  Kenneth R. Ossman

IPC分类号： B41J29/393

CPC分类号： B41J2/155

摘要： Systems and methods are provided for detecting process direction registration errors in a printer. The errors are detected by analyzing a metric of a dash minimum response obtained from a test pattern. The test pattern contains dashes. At least one dash is shifted in the process direction in relation to another dash.

摘要翻译： 提供了用于检测打印机中的处理方向注册错误的系统和方法。 通过分析从测试模式获得的破折号最小响应的度量来检测错误。 测试模式包含破折号。 至少一个破折号相对于另一个破折号在过程方向上移动。

公开(公告)号：US20100220363A1

公开(公告)日：2010-09-02

申请号：US12781085

申请日：2010-05-17

申请人： Peter Paul ,  Claude S. Fillion ,  Stuart A. Schweid ,  Douglas R. Taylor ,  Brian R. Conrow

发明人： Peter Paul ,  Claude S. Fillion ,  Stuart A. Schweid ,  Douglas R. Taylor ,  Brian R. Conrow

IPC分类号： H04N1/409

CPC分类号： H04N1/506

摘要： Streak compensation in a digital printer is provided utilizing a spatially varying Printer Model and Run Time updates to generate Spatially Varying Tone Reproduction Curves (STRCs) which are used as actuators to compensate for streaks during run time. A full width array sensor is used to measure streak profiles and the STRCs are used as actuators to compensate for streaks. Streak profile measurements taken at a limited number of area coverage levels combined with a Printer Streaks Basis Function Model are used to estimate and project the streak behavior at all area coverage levels and at all inboard-to-outboard spatial locations. The projection is then used in a pixel-wise error feedback control scheme to drive each profile to a desired shape, thereby compensating for streaks.

摘要翻译： 使用空间变化的打印机型号和运行时间更新来提供数字打印机中的条纹补偿，以生成空间变化色调再现曲线（STRC），这些曲线用作执行器来补偿运行时间内的条纹。 全宽阵列传感器用于测量条纹轮廓，并且STRC用作致动器来补偿条纹。 在有限数量的区域覆盖水平和打印机条纹基础函数模型的条件下进行条纹分布测量用于估计和计算所有区域覆盖水平和所有内到外空间位置的条纹行为。 然后将投影用于像素方向的误差反馈控制方案，以将每个轮廓驱动到期望的形状，从而补偿条纹。

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。

公开(公告)号：US20090296158A1

公开(公告)日：2009-12-03

申请号：US12277594

申请日：2008-11-25

申请人： Peter Paul ,  Claude S. Fillion

发明人： Peter Paul ,  Claude S. Fillion

IPC分类号： H04N1/409

CPC分类号： H04N1/6033 ,  H04N1/58 ,  H04N1/6041

摘要： Systems and methods are provided for compensating for streak defects in images formed by an image forming device, such as a digital printer. The methods include using a spatially varying printer model and run time updates to generate spatially varying tone reproduction curves (STRC actuation) in an iterative control system for improving streak correction in a digital printing machine. Streaks are rapidly learned and eliminated at cycle-up and tracked and eliminated during print run time using STRC actuation.

摘要翻译： 提供了系统和方法来补偿由诸如数字打印机的图像形成装置形成的图像中的条纹缺陷。 这些方法包括在迭代控制系统中使用空间变化的打印机模型和运行时间更新来产生空间变化的色调再现曲线（STRC致动），以改善数字印刷机中的条纹校正。 快速学习和消除条纹，并在使用STRC驱动的打印运行时间内跟踪和消除。