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1. 发明授权

US07271910B2 Systems and methods for compensating for temperature induced spectral emission variations in LED based color parameter measuring devices 有权
标题翻译：用于补偿基于LED的颜色参数测量装置中的温度感应光谱发射变化的系统和方法
公开(公告)号：US07271910B2
公开(公告)日：2007-09-18
申请号：US11092674
申请日：2005-03-30
申请人： Peter Paul , Lalit K. Mestha , Claude S. Fillion , R. Enrique Viturro
发明人： Peter Paul , Lalit K. Mestha , Claude S. Fillion , R. Enrique Viturro
IPC分类号： G01N21/25
CPC分类号： G01J3/50 , G01J3/501 , G01J3/524 , G01J2003/466 , G01N21/255
摘要： Systems and method provide compensation for temperature induced peak wavelength shift of LEDs is color parameter measuring systems that use a model to reconstruct target color parameter values from the reflectance values measured when the target is illuminated by LEDs. Several models may be constructed, with each model being trained at a unique temperature, resulting in a set of models that span the temperature range of interest. In real-time, the LED based color parameter measuring system measures the temperature and interpolates between the models to estimate the appropriate model to use at the temperature of interest. The estimated model is then used to perform the color parameter value estimation.
摘要翻译：系统和方法为温度引起的LED的峰值波长偏移提供补偿是使用模型从由LED照射目标时测量的反射率值重建目标颜色参数值的颜色参数测量系统。可以构建几个模型，每个模型在独特的温度下进行训练，得到一组跨越感兴趣的温度范围的模型。基于LED的颜色参数测量系统实时测量模型之间的温度和内插，以估计在感兴趣的温度下使用的适当模型。然后使用估计的模型来执行颜色参数值估计。

2. 发明授权

US07283240B2 Spectrophotometer target distance variation compensation 有权
标题翻译：分光光度计目标距离变化补偿
公开(公告)号：US07283240B2
公开(公告)日：2007-10-16
申请号：US11210957
申请日：2005-08-24
申请人： Lalit K. Mestha , Tonya L. Love , Peter Paul , Claude S. Fillion
发明人： Lalit K. Mestha , Tonya L. Love , Peter Paul , Claude S. Fillion
IPC分类号： G01J3/46
CPC分类号： G01J3/50 , G01J3/02 , G01J3/0256 , G01J3/0278 , G01J3/501 , G01J3/524
摘要： Spectrophotometer color measurement with a target illumination system and a reflected illumination sensing system where the target surface is variably spaced from said spectrophotometer. Color correction calibration information corresponding to color measurements for known different spacings of a test target surface from the spectrophotometer are obtained and stored. In use, the spacing of the actual target surface from the spectrophotometer is measured to provide a target spacing information signal. That signal is automatically combined with the stored color correction calibration information for the corresponding distances to provide at least partial correction of color measurement errors of the spectrophotometer for variable spacing of the target surface relative to the spectrophotometer even with low cost fixed focus optics. The spectrophotometer output can be so corrected by changing the target illumination, such as by LED pulse width changes, and/or by corrective adjustment of the measured reflectances.
摘要翻译：使用目标照明系统和反射照明感测系统进行分光光度计颜色测量，其中目标表面与所述分光光度计可变地间隔开。获得并存储与来自分光光度计的测试目标表面的已知不同间隔的颜色测量相对应的颜色校正校准信息。在使用中，测量实际目标表面与分光光度计的间距，以提供目标间隔信息信号。该信号与相应距离的存储的颜色校正校准信息自动组合，以便即使使用低成本的固定聚焦光学器件，也可以对目标表面相对于分光光度计的可变间隔进行至少部分校正分光光度计的颜色测量误差。通过改变目标照明（例如通过LED脉冲宽度变化）和/或通过校正测量的反射率来校正分光光度计输出。

3. 发明授权

US07729015B2 Methods and apparatuses for controlling print density 失效
标题翻译：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。

4. 发明授权

US08964256B2 Method of correcting streaks using exposure modulation and spatially varying TRCs 有权
标题翻译：使用曝光调制和空间变化的TRC校正条纹的方法
公开(公告)号：US08964256B2
公开(公告)日：2015-02-24
申请号：US12112618
申请日：2008-04-30
申请人： R. Enrique Viturro , Peter Paul
发明人： R. Enrique Viturro , Peter Paul
IPC分类号： G06T5/00 , H04N1/407 , H04N1/409 , H04N1/401 , H04N1/29 , G03G15/00 , H04N1/12
CPC分类号： H04N1/4015 , G03G15/5041 , G03G2215/00042 , H04N1/12 , H04N1/295 , H04N1/4076
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 systems and methods include using both modulation of a raster output scanner (ROS actuation) and spatially varying tone reproduction curve (STRC actuation) in a common control system for improving streak correction. Low spatial frequency large amplitude streak defects are corrected using ROS actuation and high spatial frequency streak defects, as well as any residual low frequency defects, are corrected 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。该系统和方法包括在公共控制系统中使用光栅输出扫描器（ROS致动）的调制和空间变化色调再现曲线（STRC致动），以改善条纹校正。使用ROS驱动校正低空间频率大幅度条纹缺陷，并且使用STRC致动校正高空间频率条纹缺陷以及任何残留的低频缺陷。

5. 发明申请

US20090273813A1 METHOD OF CORRECTING STREAKS USING EXPOSURE MODULATION AND SPATIALLY VARYING TRCS 有权
标题翻译：使用暴露调制和空间变化的TRCS校正裂纹的方法
公开(公告)号：US20090273813A1
公开(公告)日：2009-11-05
申请号：US12112618
申请日：2008-04-30
申请人： R. Enrique Viturro , Peter Paul
发明人： R. Enrique Viturro , Peter Paul
IPC分类号： H04N1/409
CPC分类号： H04N1/4015 , G03G15/5041 , G03G2215/00042 , H04N1/12 , H04N1/295 , H04N1/4076
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 systems and methods include using both modulation of a raster output scanner (ROS actuation) and spatially varying tone reproduction curve (STRC actuation) in a common control system for improving streak correction. Low spatial frequency large amplitude streak defects are corrected using ROS actuation and high spatial frequency streak defects, as well as any residual low frequency defects, are corrected 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。该系统和方法包括在公共控制系统中使用光栅输出扫描器（ROS致动）的调制和空间变化色调再现曲线（STRC致动），以改善条纹校正。使用ROS驱动校正低空间频率大幅度条纹缺陷，并且使用STRC致动校正高空间频率条纹缺陷以及任何残留的低频缺陷。

6. 发明授权

US07492381B2 Compensation of MPA polygon once around with exposure modulation 失效
标题翻译：用曝光调制补偿MPA多边形
公开(公告)号：US07492381B2
公开(公告)日：2009-02-17
申请号：US11315978
申请日：2005-12-21
申请人： Howard Mizes , Peter Paul , Jack LeStrange , Nancy B. Goodman , R. Enrique Viturro
发明人： Howard Mizes , Peter Paul , Jack LeStrange , Nancy B. Goodman , R. Enrique Viturro
IPC分类号： B41J2/385 , B41J2/435 , G06F15/00
CPC分类号： G02B27/0031 , G02B26/127
摘要： Many xerographic machines have a motor polygon assembly (MPA), which is a rotating polygonal mirror. As the MPA rotates, it reflects a modulated light beam to produce scan lines on a photoreceptor. Inconsistencies in the MPA can cause inconsistencies in the scan lines, and therefore banding in a printed document. Misalignment, improper mounting, improper manufacture, or sources can cause the MPA inconsistencies. The banding is periodic, can be measured and can be compensated for. Although the modulated light beam can be modulated by many sources, further modulation using a compensation source can reduce banding.
摘要翻译：许多静电复印机具有马达多边形组件（MPA），它是旋转的多面镜。当MPA旋转时，其反射调制的光束以在感光体上产生扫描线。 MPA中的不一致可能导致扫描线不一致，因此打印文档中的条带。未对准，不正确的安装，不正确的制造或来源可能会导致MPA的不一致。条带是周期性的，可以测量并可以补偿。虽然调制光束可以被许多光源调制，但使用补偿源的进一步的调制可以减少条带。

7. 发明申请

US20120155712A1 METHOD FOR AUTOMATIC LICENSE PLATE RECOGNITION USING ADAPTIVE FEATURE SET 有权
标题翻译：使用自适应特征集的自动许可证识别方法
公开(公告)号：US20120155712A1
公开(公告)日：2012-06-21
申请号：US12971643
申请日：2010-12-17
申请人： Peter Paul , Aaron Michael Burry , William J. Hannaway , Claude S. Fillion
发明人： Peter Paul , Aaron Michael Burry , William J. Hannaway , Claude S. Fillion
IPC分类号： G06K9/00
CPC分类号： G06K9/00 , G06K2209/15
摘要： A method for determining a confidence level to be used in identifying a vehicle. The method includes receiving a vehicle image, extracting a license plate image from the at least one vehicle image, determining a license plate number and associated confidence level based upon the license plate image, and comparing the associated confidence level against a confidence threshold. If the associated confidence level is below the confidence threshold, the method further includes extracting auxiliary data from the at least one vehicle image, corresponding the extracted auxiliary data and a set of stored auxiliary data, and updating the associated confidence level to produce an updated confidence level based upon the correspondence of the extracted auxiliary data and the set of stored auxiliary data.
摘要翻译：一种用于确定用于识别车辆的可信度水平的方法。所述方法包括接收车辆图像，从所述至少一个车辆图像提取车牌图像，基于所述车牌图像来确定车牌号码和相关联的置信度，以及将所述相关联的可信度与置信阈值进行比较。如果相关联的置信水平低于置信度阈值，则该方法还包括从所述至少一个车辆图像提取辅助数据，对应于所提取的辅助数据和一组存储的辅助数据，以及更新相关联的置信水平以产生更新的置信度基于所提取的辅助数据和所存储的辅助数据的集合的对应关系。

8. 发明申请

US20100220363A1 STREAK COMPENSATION USING MODEL BASED PROJECTIONS FOR RUN TIME UPDATES 有权
标题翻译：使用基于模型的投影的运行时间更新的STREAK补偿
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。

9. 发明申请

US20090296158A1 SYSTEM AND METHOD TO COMPENSATE STREAKS USING A SPATIALLY VARYING PRINTER MODEL AND RUN TIME UPDATES 有权
标题翻译：使用空间变化的打印机模型和运行时间更新来补偿条纹的系统和方法
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。

10. 发明授权

US07952761B2 System and method to compensate streaks using a spatially varying printer model and run time updates 有权
标题翻译：使用空间变化的打印机型号和运行时间更新来补偿条纹的系统和方法
公开(公告)号：US07952761B2
公开(公告)日：2011-05-31
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。

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