公开(公告)号：US09165201B2

公开(公告)日：2015-10-20

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： G06K9/32 ,  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：US20130265419A1

公开(公告)日：2013-10-10

申请号：US13441269

申请日：2012-04-06

申请人： Orhan Bulan ,  Yao Rong Wang ,  Zhigang Fan ,  Edgar A. Bernal ,  Robert P. Loce ,  Yeqing Zhang

发明人： Orhan Bulan ,  Yao Rong Wang ,  Zhigang Fan ,  Edgar A. Bernal ,  Robert P. Loce ,  Yeqing Zhang

IPC分类号： H04N7/18

CPC分类号： G08G1/143 ,  G08G1/147

摘要： A method for determining parking availability includes receiving video data from a sequence of frames taken from an image capture device that is monitoring a parking area. The method includes determining background and foreground images in an initial frame of the sequence of frames. The method further includes updating the background and foreground images in each of the sequence of frames following the initial frame. The method also includes determining a length of a parking space using the determined background and foreground images. The determining includes computing a pixel distance between a foreground image and one of an adjacent foreground image and an end of the parking area. The determining further includes mapping the pixel distance to an actual distance for estimating the length of the parking space.

摘要翻译： 用于确定停车可用性的方法包括从从正在监视停车区域的图像捕获装置获取的帧序列中接收视频数据。 该方法包括确定帧序列的初始帧中的背景和前景图像。 该方法还包括在初始帧之后的每个帧序列中更新背景和前景图像。 该方法还包括使用所确定的背景和前景图像确定停车位的长度。 该确定包括计算前景图像和相邻前景图像之一与停车区域的结束之间的像素距离。 该确定还包括将像素距离映射到用于估计停车位的长度的实际距离。

公开(公告)号：US20130113855A1

公开(公告)日：2013-05-09

申请号：US13291539

申请日：2011-11-08

申请人： Christine Ann Steurrys ,  David A. Tence ,  James D. Buehler ,  Yeqing Zhang ,  Jeffrey J. Folkins

发明人： Christine Ann Steurrys ,  David A. Tence ,  James D. Buehler ,  Yeqing Zhang ,  Jeffrey J. Folkins

IPC分类号： B41J29/38

CPC分类号： B41J2/0451 ,  B41J2/04581 ,  B41J2/155

摘要： A method of operating a printer enables the mass of the ink drops ejected by the printheads in the printer to maintained in an optimal range without measuring the drop mass being ejected by the inkjets in the printheads. After calibration of the printheads, the printheads are operated with electrical signals having different peak-to-peak voltages. The number of inoperable inkjets for each printhead is determined from image data of the ejected ink on the image receiving member and the number of inoperable inkjets for each printhead is compared to a predetermined threshold. The peak-to-peak voltage for the electrical signals used to operate a printhead is adjusted with reference to the number of inoperable inkjets and the predetermined threshold.

摘要翻译： 操作打印机的方法使得由打印机中的打印头喷射的墨滴的质量保持在最佳范围，而不测量由打印头中的喷墨打印头喷射的液滴质量。 在校准打印头之后，打印头以具有不同峰 - 峰值电压的电信号操作。 每个打印头的不可操作的喷墨打印头的数量由图像接收部件上喷射的墨水的图像数据确定，并将每个打印头的不可操作的喷墨数量与预定的阈值进行比较。 用于操作打印头的用于操作打印头的电信号的峰 - 峰电压参照不可操作的喷墨数量和预定阈值进行调节。

公开(公告)号：US08432582B2

公开(公告)日：2013-04-30

申请号：US10923116

申请日：2004-08-20

申请人： Yeqing Zhang ,  Robert Paul Loce ,  Beilei Xu

发明人： Yeqing Zhang ,  Robert Paul Loce ,  Beilei Xu

IPC分类号： G06K15/00 ,  H04N1/40

CPC分类号： H04N1/603

摘要： Compensation for rendering device non-uniformities is provided for halftoned images. A spatially dependent tone reproduction curve (TRC) provides compensation values. Pixel location information is used to access TRC values. For example, the values are modification values. The modification values are added to the pixel values to generate combined values. Quantization is applied to the combined values to prepare compensated image data for rendering. For example, Rank Ordered Error Diffusion is applied to the combined values. The combined values may include diffused error from previously processed pixels. Gray values may be estimated for the respective pixels. The estimated gray values may be used to access compensation information from a TRC that is both spatially and gray value dependent. Mathematical basis decomposition is used to reduce TRC memory requirements. For example, Discrete Cosine Transformation, Singular Value Decomposition or Principal Component Analysis is used to determine a compact form for the TRC.

摘要翻译： 为半色调图像提供渲染设备不均匀性的补偿。 空间依赖色调再现曲线（TRC）提供补偿值。 像素位置信息用于访问TRC值。 例如，值是修改值。 将修改值添加到像素值以生成组合值。 将量化应用于组合值以准备用于渲染的补偿图像数据。 例如，将秩排序误差扩散应用于组合值。 组合的值可以包括来自先前处理的像素的扩散误差。 可以针对各个像素估计灰度值。 估计的灰度值可用于从空间和灰度依赖的TRC访问补偿信息。 数学基础分解用于减少TRC记忆体要求。 例如，使用离散余弦变换，奇异值分解或主成分分析来确定TRC的紧凑形式。

公开(公告)号：US20110279503A1

公开(公告)日：2011-11-17

申请号：US12780654

申请日：2010-05-14

申请人： Howard A. Mizes ,  Helen HaeKyung Shin ,  Yeqing Zhang

发明人： Howard A. Mizes ,  Helen HaeKyung Shin ,  Yeqing Zhang

IPC分类号： B41J29/38

CPC分类号： B41J29/393 ,  B41J3/543 ,  B41J2029/3935

摘要： A printer operating method enables a controller to identify process direction errors in an optical imaging system. The method includes identifying a printhead roll error for each printhead in a plurality of printheads in a printer, moving each printhead by an amount that corrects the printhead roll error for the corresponding printhead, generating a plurality of dashes on media with the plurality of printheads as the media moves past the plurality of printheads, identifying a position for each dash in the process direction from image data of the plurality of dashes on the media, identifying a displacement in the process direction for each optical detector in a linear array of optical detectors used to generated the image data of the plurality of dashes, the displacement being identified with reference to the identified positions for the dashes, and operating the printer to compensate for the identified displacements of the optical detectors.

摘要翻译： 打印机操作方法使得控制器能够识别光学成像系统中的过程方向误差。 该方法包括识别打印机中的多个打印头中的每个打印头的打印头滚动误差，使每个打印头移动一定量，该量可校正相应打印头的打印头滚动误差，在多个打印头的介质上产生多个破折号， 介质移动通过多个打印头，从介质上的多个破折号的图像数据中识别处理方向上每个破折号的位置，识别所使用的光学检测器的线性阵列中每个光学检测器的处理方向上的位移 为了产生多个破折号的图像数据，该位移是参考用于破折号的识别的位置来识别的，并且操作打印机以补偿所识别出的光学检测器的位移。

公开(公告)号：US07627191B2

公开(公告)日：2009-12-01

申请号：US11505220

申请日：2006-08-14

申请人： Beilei Xu ,  Robert P. Loce ,  Yeqing Zhang

发明人： Beilei Xu ,  Robert P. Loce ,  Yeqing Zhang

IPC分类号： G06K9/40

CPC分类号： H04N1/3872 ,  H04N1/3877

摘要： Image data is scaled, rotated and/or otherwise manipulated. Diffusive effects of associated interpolation and/or re-sampling are compensated for, or corrected, by applying an adaptive packing form of error diffusion to output data of one or more manipulating transforms. For example, rank order error diffusion is applied to output data of a manipulating transform, thereby restoring compaction to otherwise diffuse halftone structures (e.g., halftone dots, lines, etc), saturated text and/or other small, high contrast image elements.

摘要翻译： 图像数据被缩放，旋转和/或以其它方式操纵。 通过将误差扩散的自适应填充形式应用于一个或多个操纵变换的输出数据来补偿或校正相关内插和/或重新采样的扩散效应。 例如，排序误差扩散被应用于操纵变换的输出数据，由此恢复压缩以另外漫射半色调结构（例如，半色调点，线等），饱和文本和/或其它小的高对比度图像元素。

公开(公告)号：US20080037899A1

公开(公告)日：2008-02-14

申请号：US11505220

申请日：2006-08-14

申请人： Beilei Xu ,  Robert P. Loce ,  Yeqing Zhang

发明人： Beilei Xu ,  Robert P. Loce ,  Yeqing Zhang

IPC分类号： G06K9/36 ,  G06K9/32

CPC分类号： H04N1/3872 ,  H04N1/3877

摘要： Image data is scaled, rotated and/or otherwise manipulated. Diffusive effects of associated interpolation and/or re-sampling are compensated for, or corrected, by applying an adaptive packing form of error diffusion to output data of one or more manipulating transforms. For example, rank order error diffusion is applied to output data of a manipulating transform, thereby restoring compaction to otherwise diffuse halftone structures (e.g., halftone dots, lines, etc), saturated text and/or other small, high contrast image elements.

摘要翻译： 图像数据被缩放，旋转和/或以其它方式操纵。 通过将误差扩散的自适应填充形式应用于一个或多个操纵变换的输出数据来补偿或校正相关内插和/或重新采样的扩散效应。 例如，排序误差扩散被应用于操纵变换的输出数据，由此恢复压缩以另外漫射半色调结构（例如，半色调点，线等），饱和文本和/或其它小的高对比度图像元素。

公开(公告)号：US20060077489A1

公开(公告)日：2006-04-13

申请号：US10923116

申请日：2004-08-20

申请人： Yeqing Zhang ,  Robert Loce ,  Beilei Xu

发明人： Yeqing Zhang ,  Robert Loce ,  Beilei Xu

IPC分类号： H04N1/46

CPC分类号： H04N1/603

摘要： Compensation for rendering device non-uniformities is provided for halftoned images. A spatially dependent tone reproduction curve (TRC) provides compensation values. Pixel location information is used to access TRC values. For example, the values are modification values. The modification values are added to the pixel values to generate combined values. Quantization is applied to the combined values to prepare compensated image data for rendering. For example, Rank Ordered Error Diffusion is applied to the combined values. The combined values may include diffused error from previously processed pixels. Gray values may be estimated for the respective pixels. The estimated gray values may be used to access compensation information from a TRC that is both spatially and gray value dependent. Mathematical basis decomposition is used to reduce TRC memory requirements. For example, Discrete Cosine Transformation, Singular Value Decomposition or Principal Component Analysis is used to determine a compact form for the TRC.

公开(公告)号：US08602518B2

公开(公告)日：2013-12-10

申请号：US12754730

申请日：2010-04-06

申请人： Howard A. Mizes ,  Michael C. Mongeon ,  Helen HaeKyung Shin ,  Yeqing Zhang

发明人： Howard A. Mizes ,  Michael C. Mongeon ,  Helen HaeKyung Shin ,  Yeqing Zhang

IPC分类号： B41J29/393

CPC分类号： B41J2/2142 ,  B41J2/2146

摘要： A test pattern printed by printheads in an inkjet printer enables image analysis of the test pattern that identifies positions of the printheads and the inkjets operating in the printheads. The test pattern includes a plurality of arrangements of dashes, each arrangement of dashes having a predetermined number of rows and a predetermined number of columns, each dash in a row of dashes in the arrangement of dashes being separated by a first predetermined distance and each dash in a column of dashes in the arrangement of dashes being separated by a second predetermined distance, each dash in a column of an arrangement of dashes being ejected by a single inkjet ejector in a printhead of the inkjet printer, and a plurality of unprinted areas interspersed between the plurality of arrangements of dashes.

摘要翻译： 由喷墨打印机中的打印头打印的测试图案使得能够对识别打印头和在打印头中操作的喷墨打印头的位置的测试图案进行图像分析。 测试图案包括多个虚线的布置，每个排列的虚线具有预定数量的行和预定数量的列，每一个以划线的排列划分为虚线的排列间隔第一预定距离，并且每个划线 在以划分第二预定距离的虚线排列的虚线栏中，由喷墨打印机的打印头中的单个喷墨喷射器排列的虚线排列中的每个划痕，并且散布着多个未打印区域 在多个布置的破折号之间。

公开(公告)号：US08456711B2

公开(公告)日：2013-06-04

申请号：US12609475

申请日：2009-10-30

申请人： Yeqing Zhang ,  Robert P. Loce

发明人： Yeqing Zhang ,  Robert P. Loce

IPC分类号： G06T5/00 ,  H04N1/46

CPC分类号： H04N1/4092 ,  G06T5/003 ,  G06T2207/20164 ,  G06T2207/20192

摘要： This closure provides image processing methods and apparatus for corner enhancing a digital image for rendering on an image output device. According to an exemplary method, the method determines whether or not image pixels are associated with a corner as a function of the USAN values generated for the image pixels. Subsequently, one or more pixels associated with a corner are modified to render a corner enhanced image.

摘要翻译： 该关闭提供用于转角增强用于在图像输出装置上呈现的数字图像的图像处理方法和装置。 根据示例性方法，该方法根据为图像像素生成的USAN值来确定图像像素是否与角关联。 随后，修改与角部相关联的一个或多个像素以呈现拐角增强图像。