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21. 发明授权

US07486416B2 Inter-separation decorrelator 有权
标题翻译：分离间去相干器
公开(公告)号：US07486416B2
公开(公告)日：2009-02-03
申请号：US11143818
申请日：2005-06-02
申请人： Edul N. Dalal , Wencheng Wu , Robert P. Loce , Raja Bala , Yeqing Zhang , Norman W. Zeck
发明人： Edul N. Dalal , Wencheng Wu , Robert P. Loce , Raja Bala , Yeqing Zhang , Norman W. Zeck
IPC分类号： H04N1/60 , H04N1/04 , G03F3/08 , G06K15/00 , G06K9/00
CPC分类号： H04N1/6038 , H04N1/6041
摘要： Spatially dependent colorant interaction effects are identified and isolated from other aspects of spatially dependent colorant appearance nonuniformities. A decorrelating function for compensating for the identified spatially dependent colorant interaction effects is determined. Spatially dependent single colorant compensating functions for compensating for the other aspects of the spatially dependent colorant appearance nonuniformities may also be determined. Image data is processed through the decorrelating function, thereby generating colorant values that are compensated for spatially dependent colorant interaction effects. Optionally, image data is also processed through the spatially dependent single colorant compensating functions, thereby generating colorant values that are compensated for both aspects of colorant appearance nonuniformities. The two kinds of compensating functions may be determined, calibrated and/or stored at different spatial and temporal frequencies or resolutions. One or both of the compensating functions may be employed to maintain consistency across a plurality of rendering devices (e.g., marking engines).
摘要翻译：从空间依赖的着色剂外观不均匀性的其他方面鉴定和分离空间依赖性着色剂相互作用效应。确定用于补偿所识别的空间依赖着色剂相互作用效应的去相关函数。还可以确定用于补偿空间依赖着色剂外观不均匀性的其它方面的空间依赖性单色剂补偿功能。图像数据通过去相关功能进行处理，从而产生对空间依赖的着色剂相互作用效应进行补偿的着色剂值。可选地，还通过空间依赖的单一着色剂补偿功能来处理图像数据，由此产生着色剂值，其对着色剂外观不均匀性的两个方面进行补偿。可以在不同的空间和时间频率或分辨率下确定，校准和/或存储两种补偿功能。可以采用一种或两种补偿功能来保持多个渲染设备（例如，标记引擎）之间的一致性。

22. 发明授权

US06608701B1 Compact high addressability rendering 有权
标题翻译：紧凑的高可寻址性渲染
公开(公告)号：US06608701B1
公开(公告)日：2003-08-19
申请号：US09348378
申请日：1999-07-07
申请人： Robert P. Loce , Michael Branciforte , Fritz F. Ebner , Douglas N. Curry , Yeqing Zhang , Leon C. Williams
发明人： Robert P. Loce , Michael Branciforte , Fritz F. Ebner , Douglas N. Curry , Yeqing Zhang , Leon C. Williams
IPC分类号： G06K936
CPC分类号： H04N1/4052 , H04N1/4056
摘要： A compact rendering processor for processing image data including a multi-bit halftone region generates high addressability pixels. The compact rendering processor includes a tagging sub-processor operating on the image data to identify a target pixel and a neighboring pixel to determine a fill-order. The compact rendering processor also includes a rendering sub-processor that converts the target pixel into a high addressability pixel based upon the fill-order. Optionally, a diffusion sub-processor can be included to diffuse an error resulting from the conversion of the target pixel into a high addressability pixel to other pixels within the image data.
摘要翻译：用于处理包括多位半色调区域的图像数据的紧凑渲染处理器产生高可寻址性像素。紧凑渲染处理器包括对图像数据进行操作的标记子处理器，以识别目标像素和相邻像素以确定填充顺序。紧凑渲染处理器还包括渲染子处理器，其基于填充顺序将目标像素转换为高可寻址性像素。可选地，可以包括扩散子处理器以将由目标像素转换成高可寻址性像素所产生的误差扩散到图像数据内的其他像素。

23. 发明授权

US06606420B1 Method and apparatus for digital image darkness control in saturated image structures 失效
标题翻译：饱和图像结构中数字图像暗度控制的方法和装置
公开(公告)号：US06606420B1
公开(公告)日：2003-08-12
申请号：US09425951
申请日：1999-10-25
申请人： Robert P. Loce , Clara Cuciurean-Zapan , Yeqing Zhang
发明人： Robert P. Loce , Clara Cuciurean-Zapan , Yeqing Zhang
IPC分类号： G06K940
CPC分类号： G06T5/008 , G06T5/30 , G06T7/13 , G06T7/136 , G06T2207/20012 , G06T2207/20192 , G06T2207/30176
摘要： A method and apparatus for the control of darkness/lightness in a digital image rendered by a printing system. An original image containing antialiased edges is initially thresholded and filtered to determine an edge map. With knowledge of the edge via the edge map, darkness adjustment is applies to the digital image. Gray-edge compaction is applied thereafter to adjust the position of the edge.
摘要翻译：一种用于控制由打印系统呈现的数字图像中的黑暗度的方法和装置。首先对含有抗锯齿边缘的原始图像进行阈值处理并过滤以确定边缘图。通过边缘图的边缘知识，黑暗调整适用于数字图像。此后施加灰边压实以调整边缘的位置。

24. 发明授权

US06243499B1 Tagging of antialiased images 失效
标题翻译：标记抗锯齿图像
公开(公告)号：US06243499B1
公开(公告)日：2001-06-05
申请号：US09046424
申请日：1998-03-23
申请人： Robert P. Loce , Yeqing Zhang , Michael Branciforte
发明人： Robert P. Loce , Yeqing Zhang , Michael Branciforte
IPC分类号： G06K940
CPC分类号： G06T5/20
摘要： The present invention is a method and apparatus for the identification and tagging of antialiased pixels within regions of an image. The techniques described improve the recognition of fine gray features and enable the detection of both black and white features on high and low contrast backgrounds. The system relies on the establishment of the sense (positive/negative) of an image by first using a histogramming operation. Once the sense is determined, a plurality of logical channels are used to select a threshold, binarize a region of the image, generate a vector representative of the region, and to process the vector to identify whether an antialiased pixel is present therein. Subsequently, the output of the channels is logically combined to produce an antialias tag.
摘要翻译：本发明是用于识别和标记图像区域内的抗锯齿像素的方法和装置。所描述的技术改善了细灰色特征的识别，并且能够在高对比度和低对比度背景下检测黑白特征。该系统首先使用直方图操作来依赖图像的感觉（正/负）的建立。一旦确定了感觉，则使用多个逻辑信道来选择阈值，二值化图像的区域，生成表示该区域的向量，并且处理该矢量以识别其中是否存在抗锯齿像素。随后，通道的输出被逻辑地组合以产生抗混叠标签。

25. 发明授权

US08851601B2 System and method for compensating for drift in multiple printheads in an inkjet printer 有权
标题翻译：用于补偿喷墨打印机中多个打印头中漂移的系统和方法
公开(公告)号：US08851601B2
公开(公告)日：2014-10-07
申请号：US13368204
申请日：2012-02-07
申请人： Yeqing Zhang , Jeffrey J. Folkins , Alex S. Brougham
发明人： Yeqing Zhang , Jeffrey J. Folkins , Alex S. Brougham
IPC分类号： B41J29/38
CPC分类号： B41J2/17593 , B41J2/04505 , B41J2/04586 , B41J2/04588 , B41J2202/21 , H04N1/6036
摘要： A method for calibrating in situ a plurality of printheads in an imaging device has been developed. Firing signals operate a plurality of printheads to form ink test patterns on an image receiving member. Reflectance measurements of light reflected from the test patterns and optical density measurements for a portion of the patterns formed by only one printhead in the plurality of printheads are used to adjust the firing signals and enable the printheads to print within a predetermined range about an average reflectance value and a predetermined optical density.
摘要翻译：已经开发了用于在成像装置中原位校准多个打印头的方法。发射信号操作多个打印头以在图像接收部件上形成墨测试图案。用于从由多个打印头中的一个打印头形成的图案的一部分图案从测试图案反射的光的反射率测量值和光密度测量结果用于调整点火信号，并使得打印头能够在围绕平均反射率的预定范围内打印值和预定的光密度。

26. 发明申请

US20130070957A1 SYSTEMS AND METHODS FOR DETECTING CELL PHONE USAGE BY A VEHICLE OPERATOR 有权
标题翻译：用于检测车辆操作员使用的蜂窝电话的系统和方法
公开(公告)号：US20130070957A1
公开(公告)日：2013-03-21
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： G06K9/00
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。

27. 发明申请

US20080068660A1 Sharpening a halftoned image 有权
标题翻译：锐化半色调图像
公开(公告)号：US20080068660A1
公开(公告)日：2008-03-20
申请号：US11522610
申请日：2006-09-18
申请人： Robert P. Loce , Yeqing Zhang , Beilei Xu
发明人： Robert P. Loce , Yeqing Zhang , Beilei Xu
IPC分类号： G06F15/00
CPC分类号： H04N1/40075 , H04N1/4092
摘要： Images that include halftone structures are sharpened. A copy of received halftone image data is blurred, thereby reducing a detectability of edges of the halftone structures. Edges remaining in the blurred image data are detected. An edge enhancement image is generated based on the detected edges. The original received halftone image data is combined with the edge enhancement image, thereby generating sharpness enhanced image data having halftone structures. The sharpness enhanced image data having halftone structures can be rendered through a halftone screen that is compatible with a halftone screen that was used to generate the originally received image data. Alternatively, the sharpness enhanced image data having halftone structures is rendered according to error diffusion techniques, such as, rank order error diffusion in order to achieve or maintain dot or halftone structure compaction.
摘要翻译：包括半色调结构的图像被削尖。所接收的半色调图像数据的副本被模糊，从而降低了半色调结构的边缘的可检测性。检测残留在模糊图像数据中的边缘。基于检测到的边缘生成边缘增强图像。原始接收的半色调图像数据与边缘增强图像组合，从而产生具有半色调结构的锐度增强的图像数据。具有半色调结构的清晰度增强的图像数据可以通过与用于生成原始接收的图像数据的半色调屏幕兼容的半色调屏幕来呈现。或者，具有半色调结构的清晰度增强的图像数据根据误差扩散技术（例如等级误差扩散）来进行，以实现或维持点或半色调结构压缩。

28. 发明申请

US20070139520A1 System for providing depth discrimination of source images encoded in a rendered composite image 失效
标题翻译：用于提供在渲染的合成图像中编码的源图像的深度辨别的系统
公开(公告)号：US20070139520A1
公开(公告)日：2007-06-21
申请号：US11311950
申请日：2005-12-20
申请人： Robert Loce , Yeqing Zhang , Gaurav Sharma , Steven Harrington , Peter Crean
发明人： Robert Loce , Yeqing Zhang , Gaurav Sharma , Steven Harrington , Peter Crean
IPC分类号： H04N13/04
CPC分类号： H04N13/302
摘要： A system for enabling depth perception of image content in a rendered composite image, wherein illuminant/colorant depth discrimination encoding provides encoding of first and second source images in a composite image, for the purposes of subsequent illuminant/colorant depth discrimination decoding. Composite image rendering allows for rendering the composite image in a physical form. Illuminant/colorant depth discrimination decoding allows recovery of the first and second source images, thus offering to an observer the perception of spatial disparity between at least one of the recovered source images and some or all of the remaining image content perceived in the rendered composite image.
摘要翻译：一种用于在渲染的合成图像中实现图像内容的深度感知的系统，其中光源/着色剂深度识别编码提供合成图像中的第一和第二源图像的编码，以用于随后的发光/着色剂深度鉴别解码。复合图像渲染允许以物理形式呈现合成图像。照明/着色深度鉴别解码允许恢复第一和第二源图像，从而向观察者提供至少一个恢复的源图像与所渲染的合成图像中感知的剩余图像内容中的一些或全部之间的空间差异的感知。

29. 发明申请

US20070035749A1 Color compensation of images 失效
标题翻译：图像颜色补偿
公开(公告)号：US20070035749A1
公开(公告)日：2007-02-15
申请号：US11200227
申请日：2005-08-09
申请人： Yeqing Zhang , Robert Loce , Raja Bala
发明人： Yeqing Zhang , Robert Loce , Raja Bala
IPC分类号： G03F3/08 , G06F15/00
CPC分类号： H04N1/6016
摘要： A color correction method includes for each of a plurality of color separations of a digital image, establishing a tone reproduction curve in the form of a vector. The vector is a function of a plurality of basis vectors. The basis vectors account for colorant interactions between a primary colorant with which the color separation is to be rendered and at least one secondary colorant with which at least a second of the plurality of color separations is to be rendered. The vector includes modified input values corresponding to input values for the color separation which vary, depending on the input values of at least the second color separation. For a pixel of interest in the digital image, a modified input value for the color separation which corresponds to the input value of the given color separation is identified from the vector.
摘要翻译：颜色校正方法包括数字图像的多个分色中的每一个，建立矢量形式的色调再现曲线。向量是多个基本向量的函数。基本向量涉及要与其进行分色的主要着色剂和至少一种次要着色剂之间的着色剂相互作用，至少一个次要着色剂将使多个分色中的至少一个分色进行再现。矢量包括对应于颜色分离的输入值的修改的输入值，其根据至少第二颜色分离的输入值而变化。对于数字图像中感兴趣的像素，从向量中识别对应于给定颜色分离的输入值的颜色分离的修改输入值。

30. 发明申请

US20060077488A1 Methods and systems achieving print uniformity using reduced memory or computational requirements 有权
标题翻译：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：US20060077488A1
公开(公告)日：2006-04-13
申请号：US10922316
申请日：2004-08-19
申请人： Yeqing Zhang , Daniel Viassolo , Susan Zoltner , Howard Mizes , Robert Loce
发明人： Yeqing Zhang , Daniel Viassolo , Susan Zoltner , Howard Mizes , Robert Loce
IPC分类号： H04N1/46
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

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