公开(公告)号：US20130265426A1

公开(公告)日：2013-10-10

申请号：US13461161

申请日：2012-05-01

申请人： Zhigang Fan ,  Yao Rong Wang

发明人： Zhigang Fan ,  Yao Rong Wang

IPC分类号： G07B15/02 ,  H04N7/18

CPC分类号： G07B15/02 ,  G06K9/00785 ,  H04N7/181

摘要： A method and a system for automating parking payment includes receiving video data in a sequence of frames provided by a video capture device observing a parking area. The method includes detecting a vehicle in the parking area using the video data. The method further includes receiving information of a vehicle in the parking area provided by a user device. The method includes comparing the characteristics of the detected vehicle with the information from the user device. In response to the characteristics of the detected vehicle being a match to the information sent from the user device, the method includes tracking the detected vehicle across the sequence of frames. The method includes computing a duration that the detected vehicle remains stationary using the tracking. The method includes computing an amount for charging the associated user device based on the duration.

摘要翻译： 一种用于自动化停车支付的方法和系统包括以观看停车区域的视频捕获设备提供的帧序列接收视频数据。 该方法包括使用视频数据来检测停车区域中的车辆。 该方法还包括在由用户设备提供的停车区域中接收车辆的信息。 该方法包括将检测到的车辆的特征与来自用户设备的信息进行比较。 响应于检测到的车辆的特征与从用户设备发送的信息的匹配，该方法包括在帧序列之间跟踪检测到的车辆。 该方法包括使用跟踪来计算检测到的车辆保持静止的持续时间。 该方法包括基于持续时间计算用于对相关联的用户设备计费的量。

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：US08531733B2

公开(公告)日：2013-09-10

申请号：US12754942

申请日：2010-04-06

申请人： Zhigang Fan ,  Tonya L. Love

发明人： Zhigang Fan ,  Tonya L. Love

IPC分类号： H04N1/4092 ,  H04N7/50

CPC分类号： H04N1/4074 ,  H04N1/00795 ,  H04N1/00801 ,  H04N1/00811 ,  H04N1/00816 ,  H04N1/00822 ,  H04N1/00827 ,  H04N1/3872 ,  H04N1/3878 ,  H04N1/40062 ,  H04N1/4092 ,  H04N2201/0094

摘要： An image processing system such as a multi-function device (MFD) with an “e-reader” mode is disclosed. The e-reader mode can be activated by a user from the MFD user interface, or automatically detected by the system if the mode is set to “auto.” Once in e-reader mode, the system automatically locates the area corresponding to the e-reader screen, crops it, de-skews it when necessary, and enhances the image. In addition, N-Up (printing several pages of content on one physical page) may be applied if users desire. The enhancement adjusts background color, boosts the contrast, and de-blurs the image when necessary. Two embodiments of enhancement are presented. The first one performs Tone Reproduction Curve (TRC) adjustment and possible de-blurring on the entire screen area. The second one segments the screen area into three kinds of objects (text/picture/background). Different TRCs are applied to enhance the objects.

摘要翻译： 公开了诸如具有“电子阅读器”模式的多功能装置（MFD）的图像处理系统。 电子阅读器模式可以由用户从MFD用户界面激活，或者如果模式设置为“自动”，则由系统自动检测。 一旦进入电子阅读器模式，系统会自动定位对应于电子阅读器屏幕的区域，对其进行裁剪，在必要时将其去除，并增强图像。 另外，如果用户期望，可以应用N-Up（在一个物理页面上打印多页内容）。 增强调整背景颜色，增强对比度，并在必要时对图像进行去模糊。 提出了两个增强实施例。 第一个在整个屏幕区域执行音调再现曲线（TRC）调整和可能的去模糊。 第二个将屏幕区域分为三种对象（文本/图片/背景）。 应用不同的TRC来增强对象。

公开(公告)号：US08500026B2

公开(公告)日：2013-08-06

申请号：US13312386

申请日：2011-12-06

申请人： Zhigang Fan ,  Yonghui Zhao ,  Shen-ge Wang

发明人： Zhigang Fan ,  Yonghui Zhao ,  Shen-ge Wang

IPC分类号： G06K7/12

CPC分类号： G06K19/06037

摘要： A grayscale two-dimensional barcode may be converted to a two-dimensional color barcode. The color barcode includes a set of sub-regions, and the cells in each sub-region exhibits a color pattern that corresponds to pattern of binary, grayscale cells. The two-dimensional color barcode may be decoded by comparing the pattern for each sub-region to a known grayscale pattern. The two-dimensional color barcode may be used for error correction by first decoding the barcode in grayscale form based on the luminance without reference to color, then decoding the barcode based on its color and comparing the results.

摘要翻译： 灰度二维条形码可以被转换为二维彩色条形码。 彩色条形码包括一组子区域，并且每个子区域中的单元呈现对应于二进制灰度单元格的颜色图案。 可以通过将每个子区域的图案与已知的灰度图案进行比较来解码二维彩色条形码。 可以通过基于不参照颜色的亮度以灰度形式对条形码进行解码，然后基于其颜色对条形码进行解码并比较结果，可以将二维彩色条形码用于纠错。

公开(公告)号：US08494304B2

公开(公告)日：2013-07-23

申请号：US11801958

申请日：2007-05-11

申请人： Dennis L. Venable ,  Zhigang Fan ,  Lee C. Moore

发明人： Dennis L. Venable ,  Zhigang Fan ,  Lee C. Moore

IPC分类号： G06K9/00 ,  G06K9/40

CPC分类号： G06T7/0004 ,  G06T5/005 ,  G06T2207/10008 ,  G06T2207/30144 ,  H04N1/38

摘要： A method for removal of punched hole artifacts in digital images includes, for a scanned document page, deriving an original digital image that defines the page in terms of a plurality of input pixels. A reduced resolution bitonal image is generated from the original image. The method further includes providing for identifying of candidate punched hole artifacts in the reduced resolution bitonal image and providing for testing the candidate punched hole artifacts for at least one of shape, size, and location. Where a candidate punched hole artifact meets the at least one test, the method includes generating a modified image. This includes erasing the candidate punched hole artifact from the original digital image.

摘要翻译： 用于去除数字图像中的穿孔伪影的方法包括对于扫描的文档页，导出根据多个输入像素定义页面的原始数字图像。 从原始图像生成缩小分辨率的双色图像。 该方法还包括提供在缩小分辨率双色图像中识别候选冲孔缺陷伪像，并提供用于测试形状，尺寸和位置中的至少一个的候选穿孔伪影。 在候选者穿孔孔伪影符合至少一个测试的情况下，该方法包括生成修改的图像。 这包括从原始数字图像中删除候选的穿孔伪影。

公开(公告)号：US20130182946A1

公开(公告)日：2013-07-18

申请号：US13349751

申请日：2012-01-13

申请人： Raja Bala ,  Zhigang Fan ,  Hengzhou Ding ,  Jan P. Allebach ,  Charles A. Bouman ,  Reuven J. Sherwin

发明人： Raja Bala ,  Zhigang Fan ,  Hengzhou Ding ,  Jan P. Allebach ,  Charles A. Bouman ,  Reuven J. Sherwin

IPC分类号： G06K9/46 ,  G06K9/62

CPC分类号： G06K9/00671 ,  G06K9/3258

摘要： As set forth herein, a computer-implemented method facilitates pre-analyzing an image and automatically suggesting to the user the most suitable regions within an image for text-based personalization. Image regions that are spatially smooth and regions with existing text (e.g. signage, banners, etc.) are primary candidates for personalization. This gives rise to two sets of corresponding algorithms: one for identifying smooth areas, and one for locating text regions. Smooth regions are found by dividing the image into blocks and applying an iterative combining strategy, and those regions satisfying certain spatial properties (e.g. size, position, shape of the boundary) are retained as promising candidates. In one embodiment, connected component analysis is performed on the image for locating text regions. Finally, based on the smooth and text regions found in the image, several alternative approaches are described herein to derive an overall metric for “suitability for personalization.”

摘要翻译： 如本文所述，计算机实现的方法有助于预分析图像并且自动地向用户建议图像内的最合适的区域用于基于文本的个性化。 具有空间平滑的图像区域和具有现有文本的区域（例如标牌，横幅等）是用于个性化的主要候选者。 这产生了两组相应的算法：一种用于识别平滑区域，一种用于定位文本区域。 通过将图像划分成块并应用迭代组合策略来找到平滑区域，并且满足某些空间属性（例如，边界的大小，位置，形状）的那些区域被保留为有希望的候选者。 在一个实施例中，对用于定位文本区域的图像执行连接分量分析。 最后，基于图像中发现的平滑和文本区域，本文描述了几种替代方法，以得出“适合个性化”的总体度量。

公开(公告)号：US08482807B2

公开(公告)日：2013-07-09

申请号：US12637041

申请日：2009-12-14

申请人： Zhigang Fan ,  Reiner Eschbach ,  Judith Stinehour

发明人： Zhigang Fan ,  Reiner Eschbach ,  Judith Stinehour

IPC分类号： H04N1/32 ,  G06T22/00

CPC分类号： H04N1/32219 ,  G06T1/0021 ,  H04N1/32144 ,  H04N1/32261 ,  H04N2201/3226 ,  H04N2201/3271

摘要： A method and system is provided providing a variable data guilloché pattern comprised of variable data differential line pattern fonts comprising decodable template symbols which are capable of being selectively assembled into a predetermined variable data code. The differential line pattern fonts are further spatially modulated for imposition of a second data channel on a printed document. The representation can be decoded with a digital scanner capable of identifying the embedded patterns and spatially modulated transform function and communicate it to a user for verifying a document containing the code.

摘要翻译： 提供了一种方法和系统，其提供包括可变数据差分线图案字体的可变数据纹迹图案，其包括可选择性地组装成预定可变数据代码的可解码模板符号。 差分线图案字体被进一步空间调制以在打印文档上施加第二数据通道。 该表示可以用能够识别嵌入图案和空间调制变换功能的数字扫描仪进行解码，并将其传送给用户以验证包含代码的文档。

公开(公告)号：US20130114092A1

公开(公告)日：2013-05-09

申请号：US13451883

申请日：2012-04-20

申请人： Martin S. Maltz ,  Zhigang Fan

发明人： Martin S. Maltz ,  Zhigang Fan

IPC分类号： H04N1/60 ,  G09G5/02 ,  G06K9/00

CPC分类号： G06K9/00 ,  G09G5/06 ,  G09G2320/0276 ,  H04N1/60 ,  H04N1/6033

摘要： A method and apparatus for characterizing the performance of a printing device comprising printing a target set of patches with the device and measuring the printing device response with the printed target set; compiling a LUT from the printed target set and measured response; and representing the LUT as a tensor. According to one exemplary embodiment, tensor decomposition/parallel factor analysis is employed for compacting the tensor representation of the LUT.

摘要翻译： 一种用于表征打印设备的性能的方法和装置，包括用该设备打印目标的一组补丁并用打印的目标组测量打印设备的响应; 从打印的目标集合和测量响应中编译LUT; 并将LUT表示为张量。 根据一个示例性实施例，采用张量分解/并行因子分析来压缩LUT的张量表示。

公开(公告)号：US08437013B2

公开(公告)日：2013-05-07

申请号：US12710686

申请日：2010-02-23

申请人： Reiner Eschbach ,  Zhigang Fan

发明人： Reiner Eschbach ,  Zhigang Fan

IPC分类号： G06K15/02

CPC分类号： G06F17/214 ,  G06F21/64

摘要： A method of defining a glyph font character representing an input binary code includes defining a first portion of a matrix using an input binary code including a plurality of input bits. A second portion of the matrix is defined by performing a transformation on the input binary code so that the second portion of the matrix includes a plurality of transformed bits. A glyph character is derived that corresponds to the matrix. The glyph character is defined by a plurality of components corresponding in location to said bits of said matrix, wherein the components of the glyph character comprise a first component (e.g. a forward slash /) that corresponds to and represents a “1” bit of the matrix and second component (e.g., a backslash \) that corresponds to and represents a “0” bit of the matrix. The transformation operation includes a NOT operation or other logic operation, and includes a shift operation. The transformation can be repeated to derive additional portions of the matrix by transforming the group of bits of the preceding matrix portion. The glyph characters corresponding to alphabet characters are each defined as a bitmap and are saved as Postscript Type 3 font.

摘要翻译： 定义表示输入二进制码的字形字符的方法包括使用包括多个输入位的输入二进制码定义矩阵的第一部分。 矩阵的第二部分通过对输入的二进制码执行变换来定义，使得矩阵的第二部分包括多个变换的比特。 派生对应于矩阵的字形字符。 字形字符由位于所述矩阵的所述位的位置对应的多个分量定义，其中，字形字符的分量包括对应于并表示所述矩阵的“1”位的第一分量（例如，正斜杠） 矩阵和第二组件（例如，反斜杠\），其对应于并且表示矩阵的“0”位。 转换操作包括NOT操作或其他逻辑操作，并且包括移位操作。 可以重复变换以通过变换前面的矩阵部分的位组来导出矩阵的附加部分。 对应于字母字符的字形字符都被定义为位图，并保存为Postscript Type 3字体。

公开(公告)号：US08204306B2

公开(公告)日：2012-06-19

申请号：US11415625

申请日：2006-05-02

申请人： Zhigang Fan

发明人： Zhigang Fan

IPC分类号： G06K9/34 ,  G06K9/00

CPC分类号： H04N19/23 ,  H04N19/186 ,  H04N19/20 ,  H04N19/60

摘要： A method and system is provided for segmenting scanned image data in accordance with mixed raster content processing for more efficient processing of non-uniform color touching objects. The scanned data is segmented to background and foreground layers wherein the foreground layer is comprised of a plurality of objects such as text characters. At least one of the plurality of objects is identified as being non-uniform in color. The non-uniform color object is partitioned into a plurality of sub-objects of predetermined size pixel blocks. The sub-objects are then clustered by uniform color and coded with a binary compression algorithm as a foreground layer segment. Non-uniform color sub-objects are alternatively discarded for compression with the background layer algorithm, or processed for determination of a particular color based upon the color of a plurality of pixels within the sub-object. In such a case, the sub-object can then be compressed in accordance with a foreground layer segment algorithm as the color of the determined color.

摘要翻译： 提供了一种方法和系统，用于根据混合光栅内容处理对扫描图像数据进行分割，以更有效地处理不均匀的颜色触摸对象。 扫描的数据被分割为背景和前景层，其中前景层由诸如文本字符的多个对象组成。 多个对象中的至少一个被识别为不均匀的颜色。 将不均匀的颜色对象划分为预定大小的像素块的多个子对象。 然后，子对象通过均匀的颜色聚类，并以二进制压缩算法编码为前景层段。 不均匀的颜色子对象被替换为用背景层算法进行压缩处理，或者根据子对象内的多个像素的颜色进行处理以确定特定颜色。 在这种情况下，可以根据前景层段算法将子对象压缩为所确定的颜色的颜色。