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1.发明授权Method and apparatus for adaptive black solid area estimation in a xerographic apparatus 有权静电复印机中自适应黑色实体区域估计的方法和装置公开(公告)号：US06201936B1
公开(公告)日：2001-03-13
申请号：US09454421
申请日：1999-12-03
IPC分类号： G03G1500
CPC分类号： G03G15/5041 , G03G2215/00042 , G03G2215/00054 , G03G2215/017
摘要： A process control method for color quality control maintains a preselected developed mass per unit area (DMA) of black solid area by adjusting the development field during run-time operation. In order to estimate the DMA of a solid black control patch, which is outside the sensing range of an infra-red densitometer (IRD), an estimation technique is employed which accounts for system changes due to adjustment of the development field. The estimation technique includes generating two or more test patches, using a patch generator, which have DMA readings within the sensing range of the IRD. The DMA readings and corresponding development voltages of the test patches are sensed and used to calculate a developability curve. The developability curve is projected into a region beyond the sensing range of the IRD. From the developability curve, the DMA of the solid black control patch is estimated and employed in a closed feedback loop to return the system to the preselected DMA by adjusting the development field. Development field control provides faster response to toner density changes than toner concentration control, and thus, results in better color quality control.
摘要翻译： 用于颜色质量控制的过程控制方法通过在运行时操作期间调整开发字段来保持黑色固体区域的每单位面积（DMA）的预选开发质量。 为了估计在红外光密度计（IRD）的感测范围之外的实心黑色控制贴片的DMA，采用了由于开发领域的调整而导致的系统变化的估计技术。 估计技术包括使用在IRD的感测范围内具有DMA读数的补丁生成器来生成两个或更多个测试补丁。 测量贴片的DMA读数和相应的显影电压被检测并用于计算显影性曲线。 显影性曲线投影到超出感光范围的区域内。 根据可开发性曲线，通过调整开发区域，在闭环反馈环路中估计并使用固体黑色控制贴片的DMA以将系统返回到预选的DMA。 开发现场控制比调色剂浓度控制提供更快的对调色剂浓度变化的响应，从而导致更好的颜色质量控制。
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2.发明授权公开(公告)号：US06185385B2
公开(公告)日：2001-02-06
申请号：US09083142
申请日：1998-05-22
IPC分类号： G03G1500
CPC分类号： G03G15/5041 , G03G2215/00042 , G03G2215/00054 , G03G2215/0174
摘要： An online printing parameter establishment apparatus is used with a xerographic printing device for printing high quality prints given a target value. The xerographic printing device is capable of producing at least one print control patch on a photoreceptor and is capable of sensing a value of the at least one print control patch. The xerographic printing device has a plurality of sets of inherent performance characteristic values. The online printing parameter establishment apparatus includes a controller device and a switch device. The controller device is operative to produce a first database of different ones of the sensed values. Each sensed value is associated with a respective one of the plurality of sets of inherent performance characteristic values based upon the target value. The controller device is also operative to produce a second database of a plurality of control values. Each one of the control values is extracted from a respective one of the sensed values and the associated set of inherent performance characteristic values. Further, the controller device selects one of the control values which is closely comparable to the target value. A method for online establishment of print control parameters to render high quality prints using a xerographic printing process is also described.
摘要翻译： 在线打印参数建立装置与静电印刷装置一起使用，用于打印给定目标值的高质量打印。 静电印刷装置能够在感光体上产生至少一个打印控制贴片并且能够感测至少一个打印控制贴片的值。 静电印刷装置具有多组固有的性能特征值。 在线打印参数设置装置包括控制器设备和开关设备。 控制器装置可操作以产生不同感测值的第一数据库。 基于目标值，每个感测值与多组固有性能特征值中的相应一个相关联。 控制器设备还可操作以产生多个控制值的第二数据库。 控制值中的每一个都从相应的一个感测值和相关的固有性能特征值集合中提取出来。 此外，控制器设备选择与目标值非常相似的一个控制值。 还描述了用于在线建立打印控制参数以使用静电印刷处理来呈现高质量打印的方法。
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3.发明授权
公开(公告)号：US5995776A
公开(公告)日：1999-11-30
申请号：US83142
申请日：1998-05-22
IPC分类号： G03G15/00
CPC分类号： G03G15/5041 , G03G2215/00042 , G03G2215/00054 , G03G2215/0174
摘要： An online printing parameter establishment apparatus is used with a xerographic printing device for printing high quality prints given a target value. The xerographic printing device is capable of producing at least one print control patch on a photoreceptor and is capable of sensing a value of the at least one print control patch. The xerographic printing device has a plurality of sets of inherent performance characteristic values. The online printing parameter establishment apparatus includes a controller device and a switch device. The controller device is operative to produce a first database of different ones of the sensed values. Each sensed value is associated with a respective one of the plurality of sets of inherent performance characteristic values based upon the target value. The controller device is also operative to produce a second database of a plurality of control values. Each one of the control values is extracted from a respective one of the sensed values and the associated set of inherent performance characteristic values. Further, the controller device selects one of the control values which is closely comparable to the target value. A method for online establishment of print control parameters to render high quality prints using a xerographic printing process is also described.
摘要翻译： 在线打印参数建立装置与静电印刷装置一起使用，用于打印给定目标值的高质量打印。 静电印刷装置能够在感光体上产生至少一个打印控制贴片并且能够感测至少一个打印控制贴片的值。 静电印刷装置具有多组固有的性能特征值。 在线打印参数设置装置包括控制器设备和开关设备。 控制器装置可操作以产生不同感测值的第一数据库。 基于目标值，每个感测值与多组固有性能特征值中的相应一个相关联。 控制器设备还可操作以产生多个控制值的第二数据库。 控制值中的每一个都从相应的一个感测值和相关的固有性能特征值集合中提取出来。 此外，控制器设备选择与目标值非常相似的一个控制值。 还描述了用于在线建立打印控制参数以使用静电印刷处理来呈现高质量打印的方法。
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公开(公告)号：US08587657B2
公开(公告)日：2013-11-19
申请号：US13086006
申请日：2011-04-13
申请人： Yao Rong Wang , Zhigang Fan , Lalit Keshav Mestha
发明人： Yao Rong Wang , Zhigang Fan , Lalit Keshav Mestha
CPC分类号： G06K9/00369 , G06K2009/4657 , G06T7/11 , G06T2207/10048 , G06T2207/30242
摘要： What is disclosed is a novel system and method for determining the number of objects in an IR image obtained using an IR imaging system. In one embodiment, a total of N intensity values are collected for each pixel in an IR image using a IR imaging system comprising an IR detection device and an IR Illuminator. Intensity values are retrieved from a database which have been estimated for a plurality of known materials, such as skin and hair. A classification is determined for each pixel in the IR image using either a best fitting method of a reflectance, or a correlation method. Upon classification, a total number of objects in the IR image can be determined. The present system and method finds its intended uses in of real world applications such as, determining the number of occupants in a vehicle traveling in a HOV/HOT lane.
摘要翻译： 所公开的是用于确定使用IR成像系统获得的IR图像中的对象数量的新颖系统和方法。 在一个实施例中，使用包括IR检测装置和IR照明器的IR成像系统对IR图像中的每个像素收集总共N个强度值。 从已经为多种已知材料（例如皮肤和头发）估计的数据库检索强度值。 使用反射率的最佳拟合方法或相关方法来确定IR图像中的每个像素的分类。 在分类时，可以确定IR图像中的对象的总数。 本系统和方法在现实应用中找到其预期用途，例如确定在HOV / HOT车道中行驶的车辆中的乘客人数。
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公开(公告)号：US20130266187A1
公开(公告)日：2013-10-10
申请号：US13461221
申请日：2012-05-01
IPC分类号： G06K9/62
CPC分类号： G06K9/00785
摘要： A method and a system for determining a parking angle violation includes receiving video data from a sequence of frames taken from an image capture device monitoring a parking area. The method further includes determining a first line in a current frame where the line represents a nominal orientation of the parking area. The method includes detecting a presence of a vehicle in the parking area. The method includes determining a second line in the frame where the line represents the orientation of the detected vehicle. The method further includes computing an angle between the first and second lines. The method includes determining whether the detected vehicle is violating a parking regulation based on the computed angle.
摘要翻译： 用于确定停车角违规的方法和系统包括从监视停车区域的图像拍摄装置获取的帧序列中接收视频数据。 该方法还包括确定当前帧中的第一行，其中该行表示停车区域的标称取向。 该方法包括在停车区域中检测车辆的存在。 该方法包括确定帧中的第二行，其中该线表示检测到的车辆的取向。 该方法还包括计算第一和第二线之间的角度。 该方法包括基于计算出的角度来确定检测到的车辆是否违反停车调节。
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公开(公告)号：US20130266185A1
公开(公告)日：2013-10-10
申请号：US13441253
申请日：2012-04-06
申请人： Orhan Bulan , Yao Rong Wang , Robert P. Loce , Edgar A. Bernal , Zhigang Fan , Graham S. Pennington , David P. Cummins
发明人： Orhan Bulan , Yao Rong Wang , Robert P. Loce , Edgar A. Bernal , Zhigang Fan , Graham S. Pennington , David P. Cummins
IPC分类号： G06K9/00
CPC分类号： G06K9/00771 , G06K9/3233
摘要： A method for determining a parking violation includes receiving video data as a sequence of frames provided by a camera. The method includes defining a location of an exclusion zone in the video data. The method includes detecting a vehicle located in the defined exclusion zone. The detecting includes determining a background in an initial frame of the video data and determining a background in a select frame by applying a predetermined updating process. The detecting includes subtracting the background of the select frame from the initial frame to obtain an image difference. The detecting includes classifying the pixels in the image difference as foreground or background pixels and classifying the pixels in the foreground image as vehicle or non-vehicle pixels. The method includes determining a duration that the detected vehicle is in the exclusion zone based on a number of the sequence of frames including the detected vehicle.
摘要翻译： 用于确定停车违规的方法包括接收视频数据作为由相机提供的帧序列。 该方法包括在视频数据中定义排除区的位置。 该方法包括检测位于限定的禁区中的车辆。 检测包括确定视频数据的初始帧中的背景，并通过应用预定的更新过程来确定选择帧中的背景。 检测包括从初始帧中减去选择帧的背景以获得图像差异。 检测包括将图像差异中的像素分类为前景或背景像素，并将前景图像中的像素分类为车辆或非车辆像素。 该方法包括基于包括检测到的车辆的帧序列的数量来确定检测到的车辆在排除区域中的持续时间。
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公开(公告)号：US08547613B2
公开(公告)日：2013-10-01
申请号：US12915217
申请日：2010-10-29
CPC分类号： H04N1/6022
摘要： What is disclosed is a novel system and method of inheriting intended GCR into a 4-to-4 cascaded LUT to compensate for print engine change which adversely impacts the quality of an output print. The present method uses the device link transform to generate starting LUT nodes for the inverse of the drifted printer model by inputting CMYK or RGB into the device link at a color space resolution sufficient to determine output nodes. Lab and CMYK values are derived from this process, and a “starting LUT” is created at the Lab destination nodes. An iterative control begins with this starting LUT to produce an inverse drifted printer model that contains a close approximation for the intended GCR. The present method captures the intent of the device link transform for a fleet and generates the cascaded LUT for drift, specific printer, side1/side2, and other modes leading to special GCRs.
摘要翻译： 所公开的是将期望的GCR继承到4对4级联LUT中以补偿不利地影响输出打印质量的打印引擎改变的新型系统和方法。 本方法使用设备链接变换通过以足以确定输出节点的颜色空间分辨率将CMYK或RGB输入到设备链接中来生成漂移的打印机模型的倒数的起始LUT节点。 实验室和CMYK值是从该过程得到的，并且在实验室目标节点处创建一个“起始LUT”。 迭代控制开始于该起始LUT以产生包含对于预期GCR的近似近似的反漂移打印机模型。 本方法捕获了针对车队的设备链接变换的意图，并生成用于漂移，特定打印机，side1 / side2和导致特殊GCR的其他模式的级联LUT。
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8.发明授权公开(公告)号：US08457415B1
公开(公告)日：2013-06-04
申请号：US13324433
申请日：2011-12-13
申请人： Yao Rong Wang , Lalit Keshav Mestha
发明人： Yao Rong Wang , Lalit Keshav Mestha
IPC分类号： G06K9/68
CPC分类号： G06K9/72 , G06K9/4652
摘要： What is disclosed is a system and method for post-processing a multi-spectral image which has already been processed for pixel classification. A binary image is received which contains pixels that have been classified using a pixel classification method. Each pixel in the image has an associated intensity value and has a pixel value of 1 or 0 depending on whether the pixel has been classified as a material of interest or not. A block of size m×n is defined. Pixel values in a block are changed according to a threshold-based filtering criteria such that pixels in the same block all have the same binary value. The block is then shifted by k pixels and pixel processing repeats until all pixels have been processed. Once all blocks have been processed, contiguous pixels having the same binary value are grouped to form objects. In such a manner, pixel classification errors are reduced.
摘要翻译： 所公开的是用于后处理已经被处理用于像素分类的多光谱图像的系统和方法。 接收包含使用像素分类方法分类的像素的二进制图像。 图像中的每个像素具有相关联的强度值，并且具有像素值为1或0的取决于像素是否被分类为感兴趣的材料。 定义一个大小为m×n的块。 块中的像素值根据基于阈值的滤波准则而改变，使得相同块中的像素都具有相同的二进制值。 然后将块移动k个像素，并重复像素处理直到所有像素都被处理。 一旦所有块都被处理，具有相同二进制值的连续像素被分组以形成对象。 以这种方式，减少像素分类误差。
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9.发明授权Adaptive illumination independent matching of out of gamut spot colors using various gamut mapping techniques 有权使用各种色域映射技术的色域专色之间的自适应照明独立匹配公开(公告)号：US08456698B2
公开(公告)日：2013-06-04
申请号：US12533542
申请日：2009-07-31
CPC分类号： H04N1/54 , H04N1/6052 , H04N1/6088
摘要： A methodology is disclosed to achieve adaptive illumination independent matching of out-of-gamut spot colors. In one embodiment, the methodology includes an iterative process to determine a variety device specific recipes for out-of-gamut spot colors across different illumination spectra and gamut mapping techniques, and then automatically choosing and/or recommending the optimal recipe and gamut mapping technique that provides the lowest color dispersion across a variety of illuminants under consideration.
摘要翻译： 公开了一种用于实现色域外色彩的自适应照明独立匹配的方法。 在一个实施例中，该方法包括迭代过程，以确定跨不同照明光谱和色域映射技术的色域外色彩的特定配方，然后自动选择和/或推荐最佳配方和色域映射技术， 在考虑的各种光源下提供最低的色散。
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10.发明申请UPDATING A FLEET CMYK TO ENGINE cmyk LUT IN A COLOR MANAGEMENT STRATEGY 有权在颜色管理策略中更新发布CMYK LUT的FLEET CMYK公开(公告)号：US20120212752A1
公开(公告)日：2012-08-23
申请号：US13029753
申请日：2011-02-17
IPC分类号： H04N1/60
CPC分类号： H04N1/6016 , H04N1/40006
摘要： What is disclosed is a system and method which addresses the problem of inheriting color management intent from a fleet color management LUT into a 4-to-4 cascaded LUT. The LUT is updated starting with a set of patches that either form a uniform or non-uniform grid of the LUT or can be projected to a uniform or non-uniform grid in the CMYK space using, e.g., PCA. A set of L*a*b* target as well a variable that serve the purpose of preserving the GCR and other elements of the fleet profile is obtained by passing the set of CMYK values to the fleet printer model. By iterating on the printer (or the printer model of the engine at the moment of the engine change) and converging to the targets, the engine device cmyk set is obtained. The LUT is formed between the uniform or non-uniform gridded CMYK and the device cmyk.
摘要翻译： 公开的是一种系统和方法，其解决将车队颜色管理LUT的颜色管理意图从继承到4对4级联LUT的问题。 LUT以从LUT的统一或非均匀网格形成的一组补丁开始更新，或者使用例如PCA将其投影到CMYK空间中的均匀或非均匀网格。 通过将一组CMYK值传递给车队打印机模型，获得一组L * a * b *目标以及用于保存GCR和船队简档的其他元素的变量。 通过在打印机（或发动机更换时刻的发动机的打印机型号）上迭代并收敛到目标，获得发动机装置cmyk组。 LUT在均匀或不均匀的网格CMYK和设备cmyk之间形成。
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