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。

公开(公告)号：US06683702B1

公开(公告)日：2004-01-27

申请号：US09348398

申请日：1999-07-07

申请人： Robert P. Loce ,  Michael Branciforte ,  Yeqing Zhang ,  Leon C. Williams

发明人： Robert P. Loce ,  Michael Branciforte ,  Yeqing Zhang ,  Leon C. Williams

IPC分类号： G06K936

CPC分类号： H04N1/40075 ,  H04N1/4056

摘要： A method of reproducing a document including halftoned regions therein scans the document to generate scanned image data comprising a digitized representation of said document. The scanned image data that corresponds to the halftoned regions is then rendered using a compact rendering process that includes positioning an observation window about a target pixel and a neighboring pixel; selecting a fill-order based upon a result of the analyzing step; and generating a high addressability pixel as a function of the selected fill-order.

摘要翻译： 再现包括其中的半色调区域的文档的方法扫描文档以生成包括所述文档的数字化表示的扫描图像数据。 然后使用包括定位关于目标像素和相邻像素的观察窗的紧凑渲染过程来渲染与半色调区域对应的扫描图像数据; 基于分析步骤的结果选择填充顺序; 以及根据所选择的填充顺序生成高可寻址性像素。

公开(公告)号：US06449396B1

公开(公告)日：2002-09-10

申请号：US09348871

申请日：1999-07-07

申请人： Robert P. Loce ,  Yeqing Zhang ,  Leon C. Williams ,  Michael Branciforte

发明人： Robert P. Loce ,  Yeqing Zhang ,  Leon C. Williams ,  Michael Branciforte

IPC分类号： G06K936

CPC分类号： H04N1/4056 ,  H04N1/40075

摘要： A method of processing a high addressability binary image comprises converting the high addressability binary image to gray-scale image data; manipulating the gray-scale image data; and rendering the manipulated gray-scale image to a high addressability format using a compact rendering process.

摘要翻译： 一种处理高可寻址性二值图像的方法包括将高可寻址性二进制图像转换为灰度图像数据; 操纵灰度图像数据; 并使用紧凑的渲染过程将操纵的灰度图像呈现为高寻址能力格式。

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。

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：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：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。

公开(公告)号：US07636480B2

公开(公告)日：2009-12-22

申请号：US11149522

申请日：2005-06-10

申请人： Yeqing Zhang ,  Robert P. Loce

发明人： Yeqing Zhang ,  Robert P. Loce

IPC分类号： G06K9/36 ,  H04N7/12 ,  H04B1/66

CPC分类号： G06T9/008

摘要： A method for encoding high resolution data to a form having a reduced number of bits can include predefining a plurality of high-output-resolution output patterns, associating respective output-resolution output patterns of the plurality with respective encoded resolution bit patterns, receiving a block of input-resolution input data, determining a respective difference between a pattern of the received block of input data and the respective output-resolution output patterns, selecting a respective output-resolution output pattern associated with a lowest respective difference to be a representative output pattern for the received block of input data and encoding the received block of input-resolution input data as the respective encoded resolution bit pattern associated with the selected respective representative high-output-resolution output pattern. A system includes a library of output patterns in association with encoded resolution bit patterns, a block analyzer, a block selector and an encoder.

摘要翻译： 用于将高分辨率数据编码为具有减少的位数的形式的方法可以包括预定义多个高输出分辨率输出模式，将多个的相应输出分辨率输出模式与相应的编码分辨率位模式相关联，接收块 输入分辨率输入数据，确定所接收的输入数据块的模式与相应的输出分辨率输出模式之间的相应差异，选择与最低相应差值相关联的相应输出分辨率输出模式为代表性输出模式 对于所接收的输入数据块并将所接收的输入分辨率输入数据块编码为与所选择的各个代表性高输出分辨率输出模式相关联的相应编码分辨率位模式。 系统包括与编码的分辨率位模式相关联的输出模式库，块分析器，块选择器和编码器。

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。