公开(公告)号：US20060221341A1

公开(公告)日：2006-10-05

申请号：US11092674

申请日：2005-03-30

申请人： Peter Paul ,  Lalit Mestha ,  Claude Fillion ,  R. Viturro

发明人： Peter Paul ,  Lalit Mestha ,  Claude Fillion ,  R. Viturro

IPC分类号： G01N21/25 ,  G01J3/50

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。

公开(公告)号：US20070046941A1

公开(公告)日：2007-03-01

申请号：US11210957

申请日：2005-08-24

申请人： Lalit Mestha ,  Tonya Love ,  Peter Paul ,  Claude Fillion

发明人： Lalit Mestha ,  Tonya Love ,  Peter Paul ,  Claude 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.

公开(公告)号：US20070139733A1

公开(公告)日：2007-06-21

申请号：US11313018

申请日：2005-12-20

申请人： Howard Mizes ,  Robert Loce ,  Lalit Mestha ,  Peter Paul

发明人： Howard Mizes ,  Robert Loce ,  Lalit Mestha ,  Peter Paul

IPC分类号： 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：US20070139509A1

公开(公告)日：2007-06-21

申请号：US11315978

申请日：2005-12-21

申请人： Howard Mizes ,  Peter Paul ,  Jack LeStrange ,  Nancy Goodman ,  R. Viturro

发明人： Howard Mizes ,  Peter Paul ,  Jack LeStrange ,  Nancy Goodman ,  R. Viturro

IPC分类号： B41J2/385

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。

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。

公开(公告)号：US08791972B2

公开(公告)日：2014-07-29

申请号：US13372460

申请日：2012-02-13

申请人： Martin E. Hoover ,  Peter Paul ,  James D. Shoots ,  Jess R. Gentner

发明人： Martin E. Hoover ,  Peter Paul ,  James D. Shoots ,  Jess R. Gentner

IPC分类号： B41J2/435 ,  G03B27/54 ,  B41L17/08 ,  G02B26/08

CPC分类号： B41L17/08 ,  G02B26/0833 ,  G03G15/04045 ,  G03G15/0435

摘要： A reflex-type digital offset printing system includes four single-pass, single-color digital imaging systems arranged along a print medium feed path, and an image server that utilizes a positional clock to implicitly synchronize the imaging systems with the movement of a print medium along the feed path such that single-color (e.g., black, cyan, magenta, or yellow) image portions can be successively superimposed to produce a full color image. Each single-color digital imaging system utilizes a digital micromirror device and an anamorphic imaging system to generate a high energy, one-dimensional modulated line image that selectively evaporates fountain solution from an imaging cylinder before ink material is applied. Each imaging system utilizes a sensor that sends a respective drum position signal to the image server, and the image server utilizes the drum position signals to synchronize the single-color printing operations with the position of the printing medium.

摘要翻译： 反射型数字胶印系统包括沿打印介质馈送路径布置的四个单通，单色数字成像系统，以及利用位置时钟将成像系统与打印介质的移动隐含地同步的图像服务器 沿着馈送路径，使得可以连续叠加单色（例如，黑色，青色，品红色或黄色）图像部分以产生全色图像。 每个单色数字成像系统利用数字微镜装置和变形成像系统来产生高能量的一维调制线图像，其在施加墨水材料之前选择性地从成像圆筒蒸发润版液。 每个成像系统利用将相应的鼓位置信号发送到图像服务器的传感器，并且图像服务器利用鼓位置信号来使单色打印操作与打印介质的位置同步。

公开(公告)号：US08644561B2

公开(公告)日：2014-02-04

申请号：US13352554

申请日：2012-01-18

申请人： Aaron Michael Burry ,  Vladimir Kozitsky ,  Peter Paul

发明人： Aaron Michael Burry ,  Vladimir Kozitsky ,  Peter Paul

IPC分类号： G06K9/00

CPC分类号： G06K9/6279 ,  G06K2209/01 ,  G06K2209/15

摘要： A method and system for recognizing a license plate character utilizing a machine learning classifier. A license plate image with respect to a vehicle can be captured by an image capturing unit and the license plate image can be segmented into license plate character images. The character image can be preprocessed to remove a local background variation in the image and to define a local feature utilizing a quantization transformation. A classification margin for each character image can be identified utilizing a set of machine learning classifiers each binary in nature, for the character image. Each binary classifier can be trained utilizing a character sample as a positive class and all other characters as well as non-character images as a negative class. The character type associated with the classifier with a largest classification margin can be determined and the OCR result can be declared.

摘要翻译： 一种使用机器学习分类器识别车牌字符的方法和系统。 可以通过图像捕获单元捕获关于车辆的车牌图像，并且可以将车牌图像分割成车牌字符图像。 字符图像可以被预处理以去除图像中的局部背景变化并且使用量化变换来定义局部特征。 可以使用一组机器学习分类器来识别每个字符图像的分类容限，每个二进制的机器学习分类器用于字符图像。 可以使用字符样本作为正类和所有其他字符以及非字符图像作为负类来训练每个二进制分类器。 可以确定与具有最大分类边距的分类器相关联的字符类型，并且可以声明OCR结果。

公开(公告)号：US08611608B2

公开(公告)日：2013-12-17

申请号：US13215401

申请日：2011-08-23

申请人： Zhigang Fan ,  Abu Saeed Islam ,  Peter Paul ,  Beilei Xu ,  Lalit Keshav Mestha

发明人： Zhigang Fan ,  Abu Saeed Islam ,  Peter Paul ,  Beilei Xu ,  Lalit Keshav Mestha

IPC分类号： G06K9/00

CPC分类号： G06K9/00234 ,  G06K9/00838 ,  G06K9/2018

摘要： What is disclosed is a system and method for determining whether a front seat in a motor vehicle is occupied based on seat pattern recognition. The present invention takes advantage of the observation that an unoccupied seat of a motor vehicle exhibits features which are distinguishable from an occupied seat. An unoccupied motor vehicle seat typically features long contiguous horizontal line segments and curve segments, and substantially uniform areas encompassed by these segments which are not present in an occupied seat. The present method provides a long horizontal edge test which uses location information within a defined window of the image, edge linking, softness of the edge, number of lines, line/curve fitting, and other techniques to locate horizontal edges in the image which define a seat, and a uniformity step which determines whether the area bounded by the horizontal edges is relatively uniform indicating an unoccupied seat.

摘要翻译： 公开的是基于座椅图案识别来确定机动车辆中的前排座椅是否被占用的系统和方法。 本发明利用了这样的观察结果：机动车辆的空闲座椅表现出与被占用座椅不同的特征。 未占用的机动车辆座椅通常具有长的连续水平线段和曲线段，以及由这些段所包围的基本均匀的区域，其不存在于被占用的座椅中。 本方法提供了一种长的水平边缘测试，它使用图像的定义窗口内的位置信息，边缘链接，边缘柔软度，线数，线/曲线拟合以及其他技术来定位图像中的水平边缘 一个座位和一个均匀性步骤，确定由水平边缘限定的区域是否相对均匀，表示空闲的座位。

公开(公告)号：US08553289B2

公开(公告)日：2013-10-08

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： G06K15/00

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：US20130204719A1

公开(公告)日：2013-08-08

申请号：US13364768

申请日：2012-02-02

申请人： Aaron Michael Burry ,  Peter Paul ,  Joel Eagle

发明人： Aaron Michael Burry ,  Peter Paul ,  Joel Eagle

IPC分类号： G06Q50/12

CPC分类号： G06Q50/12

摘要： An embodiment generally relates to systems and methods for processing orders associated with an establishment. In particular, a customer can submit a remote order for goods offered by the establishment, along with an associated license plate number of a vehicle that is to pick up the order. An image capture device can capture images of a vehicle on the premises of the establishment, and provide the images to a processing module which use automatic license plate recognition (ALPR) techniques to determine license plate data of the vehicle. The processing module can further examine an order list to determine if the license plate data is associated with an order on the order list, and, if so, add the order to a priority queue.

摘要翻译： 一个实施方案通常涉及用于处理与企业相关联的订单的系统和方法。 特别地，客户可以提交由机构提供的货物的远程订单以及要接收订单的车辆的相关牌照号码。 图像捕获设备可以在建筑物的房屋内捕获车辆的图像，并将图像提供给使用自动车牌识别（ALPR）技术来确定车辆牌照数据的处理模块。 处理模块可以进一步检查订单列表以确定牌照数据是否与订单列表上的订单相关联，如果是，则将订单添加到优先级队列。