公开(公告)号：US09014255B2

公开(公告)日：2015-04-21

申请号：US13438277

申请日：2012-04-03

申请人： Stuart Schweid ,  Raja Bala ,  Yonghui Zhao

发明人： Stuart Schweid ,  Raja Bala ,  Yonghui Zhao

IPC分类号： H04B1/66 ,  H04N21/234 ,  H04N21/845 ,  H04N21/8541

CPC分类号： H04N21/23412 ,  H04N21/23418 ,  H04N21/8455 ,  H04N21/8541

摘要： A computer-based method for generating a compressed data stream, including using a specially programmed computer to: access a first compressed data stream including a first plurality of sequentially arranged frames including respective compressed frame data; access a second compressed data stream including a second plurality of sequentially arranged frames including respective compressed frame data; compare respective compressed data for sequentially matched pairs of frames in the first and second pluralities of frames; select, based on the comparison, common and unique portions in the first data stream; and select, based on the comparison, first and second portions in the second data stream, matched with the common and unique portions, respectively, in the sequence. The first portion has respective compressed frame data equal to the respective compressed frame data for the common portion. The second portion has respective compressed frame data unequal to the respective compressed frame data for the common portion.

摘要翻译： 一种用于生成压缩数据流的基于计算机的方法，包括使用专门编程的计算机来：访问包括包括各个压缩帧数据的第一多个顺序排列的帧的第一压缩数据流; 访问包括包括相应压缩帧数据的第二多个顺序排列的帧的第二压缩数据流; 比较第一和第二多个帧中的顺序匹配的帧对的各个压缩数据; 基于比较，选择第一数据流中的公共和唯一部分; 并且基于比较，选择第二数据流中的第一和第二部分，分别与序列中的公共部分和唯一部分匹配。 第一部分具有等于公共部分的相应压缩帧数据的相应压缩帧数据。 第二部分具有与公共部分的各个压缩帧数据不相等的各个压缩帧数据。

公开(公告)号：US20070147699A1

公开(公告)日：2007-06-28

申请号：US11317427

申请日：2005-12-23

申请人： Robert Loce ,  Beilei Xu ,  Stuart Schweid ,  Son Nguyen ,  Michael Branciforte

发明人： Robert Loce ,  Beilei Xu ,  Stuart Schweid ,  Son Nguyen ,  Michael Branciforte

IPC分类号： G06K9/40

CPC分类号： G06K9/4609 ,  G06T5/003 ,  G06T5/20 ,  G06T7/13 ,  G06T2207/20164 ,  G06T2207/20192 ,  H04N1/4092

摘要： The teachings provided herein disclose a method for corner sharpening in the display of a bitmapped digital image. The method includes the steps of selecting a target pixel location within the digital image; observing a set of pixels within a pixel observation window superimposed on the digital image relative to the target pixel location; generating edge-state codes for a plurality of pairs of neighboring vectors of pixels within the pixel observation window; generating corner-identification codes from the plurality of edge-state codes using at least one look-up table so as to thereby identify corner pixels; and, assigning a pixel value in an output image plane in a location corresponding to the target pixel in the input image, such that assigned value extends a corner where indicated by a corner identification code, thereby producing a sharpening effect. The method may be used for improving the print quality of line-art corners and other fine details as found in both font and image data.

摘要翻译： 本文提供的教导公开了一种用于在位图数字图像的显示中进行拐角锐化的方法。 该方法包括以下步骤：在数字图像内选择目标像素位置; 观察相对于目标像素位置叠加在数字图像上的像素观察窗内的一组像素; 为所述像素观察窗口内的多个相邻像素向量对生成边缘状态代码; 使用至少一个查找表从所述多个边缘状态代码生成角标识码，从而识别角落像素; 并且在与输入图像中的目标像素相对应的位置的输出图像平面中分配像素值，使得分配值延伸由拐角识别码指示的角部，从而产生锐化效果。 该方法可以用于提高字体和图像数据中发现的线条角落的其他精细细节的打印质量。

公开(公告)号：US20070146796A1

公开(公告)日：2007-06-28

申请号：US11318131

申请日：2005-12-23

申请人： Robert Loce ,  Beilei Xu ,  Stuart Schweid ,  Son Nguyen ,  Michael Branciforte

发明人： Robert Loce ,  Beilei Xu ,  Stuart Schweid ,  Son Nguyen ,  Michael Branciforte

IPC分类号： G06F15/00

CPC分类号： H04N1/4055 ,  H04N1/4092

摘要： The teachings provided herein disclose a method for producing digital image objects with enhanced halftone edges. The method operates by selecting a target pixel location within the digital image; observing a set of pixels within a pixel observation window superimposed on the digital image relative to the target pixel location; generating edge-state codes for a plurality of pairs of neighboring vectors of pixels within the pixel observation window; generating edge-identification codes from the plurality of edge-state codes using at least one look-up table; and, utilizing the edge-identification code to select and apply to the digital image at the target pixel either a first halftone screen having a first fundamental frequency and a first angle or a second halftone screen having a second fundamental frequency and a second angle, wherein the second frequency and second angle are harmonically matched to the first frequency and first angle. The method solves the problem of ragged edges on halftone tints as an automated, operation, with a computing architecture that is readily adapted to a wide variety of tinted edge conditions, and which can be readily adapted to real-time applications.

摘要翻译： 本文提供的教导公开了一种用于产生具有增强的半色调边缘的数字图像对象的方法。 该方法通过选择数字图像内的目标像素位置来操作; 观察相对于目标像素位置叠加在数字图像上的像素观察窗内的一组像素; 为所述像素观察窗口内的多个相邻像素向量对生成边缘状态代码; 使用至少一个查找表从所述多个边缘状态代码生成边缘识别码; 并且利用边缘识别码选择并应用于目标像素处的数字图像，即具有第一基频和第一角度的第一半色调屏幕或具有第二基频和第二角度的第二半色调屏幕，其中 第二频率和第二角度与第一频率和第一角度谐波匹配。 该方法解决了作为自动化操作的半色调色调上的粗糙边缘的问题，其具有易于适应各种着色边缘条件的计算架构，并且其可以容易地适应于实时应用。

公开(公告)号：US20050179953A1

公开(公告)日：2005-08-18

申请号：US10780475

申请日：2004-02-17

申请人： Stuart Schweid

发明人： Stuart Schweid

IPC分类号： H04N1/00 ,  H04N1/10 ,  H04N1/192 ,  H04N1/409 ,  H04N1/04

CPC分类号： H04N1/00681 ,  H04N1/00718 ,  H04N1/00737 ,  H04N1/00745 ,  H04N1/1013 ,  H04N1/192 ,  H04N1/4097

摘要： An image transfer apparatus for transferring an image on a sheet medium having a frame and a reader connected to the frame for reading the image on the sheet medium. The image moves relative to the reader in a process direction when the reader reads the image. A positioning system is connected to the frame for positioning the sheet medium at a predetermined skew angle relative to the process direction.

摘要翻译： 一种图像传送装置，用于在具有框架的片材介质上传送图像，读取器连接到框架，用于在片材介质上读取图像。 当读取器读取图像时，图像在读取器的过程方向上移动。 定位系统连接到框架，用于相对于处理方向以预定的倾斜角定位片材介质。

公开(公告)号：US07822290B2

公开(公告)日：2010-10-26

申请号：US11116861

申请日：2005-04-28

申请人： Zhigang Fan ,  Stuart Schweid ,  Jeng-nan Shiau

发明人： Zhigang Fan ,  Stuart Schweid ,  Jeng-nan Shiau

IPC分类号： G06K9/36 ,  G09G5/00

CPC分类号： G06K9/00456

摘要： Disclosed is a method and system for processing image data, which may be generated by a scanning subsystem, and the segmentation and treatment of leaky windows or segments within the image. In addition to the identification of window regions or segments having leaky boundaries, the method and system include the subsequent control of enhancement and other image processing techniques applied to such images so as to reduce or eliminate artifacts that result from the processing of leaky window regions.

摘要翻译： 公开了一种用于处理可由扫描子系统产生的图像数据的方法和系统，以及图像内泄漏窗口或分段的分割和处理。 除了识别具有漏边界的窗口区域或区段之外，该方法和系统包括对这种图像的应用的增强和其他图像处理技术的后续控制，以便减少或消除由于渗漏窗口区域的处理而产生的伪影。

公开(公告)号：US20060269132A1

公开(公告)日：2006-11-30

申请号：US11139546

申请日：2005-05-31

申请人： David Metcalfe ,  Stuart Schweid ,  Jeng-Nan Shiau

发明人： David Metcalfe ,  Stuart Schweid ,  Jeng-Nan Shiau

IPC分类号： G06K9/34 ,  G06K9/00

CPC分类号： G06K9/34 ,  H04N1/40062

摘要： Methods and apparatus for segmenting image data into one or more windows may collect statistics on white regions, otherwise called enclosed white windows. Such enclosed white windows may be merged with one of a surrounding nonwhite window and a background based upon the enclosed white window's size, edge characteristics, cumulative statistics and/or at least one control parameter. Such merging may be accomplished at a time subsequent to enclosing the white region or dynamically while the window is being assembled scanline-by-scanline.

摘要翻译： 将图像数据分割成一个或多个窗口的方法和装置可以收集关于白色区域的统计数据，也称为封闭的白色窗口。 基于所包围的白色窗口的尺寸，边缘特性，累积统计量和/或至少一个控制参数，这样的封闭的白色窗口可以与周围的非白色窗口和背景之一合并。 这样的合并可以在包围白色区域之后的时间完成，或者在窗口正在被扫描线扫描线时动态地完成。

公开(公告)号：US20060245648A1

公开(公告)日：2006-11-02

申请号：US11116861

申请日：2005-04-28

申请人： Zhigang Fan ,  Stuart Schweid ,  Jeng-nan Shiau

发明人： Zhigang Fan ,  Stuart Schweid ,  Jeng-nan Shiau

IPC分类号： G06K9/34

CPC分类号： G06K9/00456

摘要： Disclosed is a method and system for processing image data, which may be generated by a scanning subsystem, and the segmentation and treatment of leaky windows or segments within the image. In addition to the identification of window regions or segments having leaky boundaries, the method and system include the subsequent control of enhancement and other image processing techniques applied to such images so as to reduce or eliminate artifacts that result from the processing of leaky window regions.

摘要翻译： 公开了一种用于处理可由扫描子系统产生的图像数据的方法和系统，以及图像内泄漏窗口或分段的分割和处理。 除了识别具有漏边界的窗口区域或区段之外，该方法和系统包括对这种图像的应用的增强和其他图像处理技术的后续控制，以便减少或消除由于渗漏窗口区域的处理而产生的伪影。

公开(公告)号：US20060242416A1

公开(公告)日：2006-10-26

申请号：US11110813

申请日：2005-04-21

申请人： Gaurav Sharma ,  Stuart Schweid

发明人： Gaurav Sharma ,  Stuart Schweid

IPC分类号： H04L9/00

CPC分类号： G06T1/005 ,  H04L9/3242 ,  H04L2209/043 ,  H04L2209/34 ,  H04L2209/60

摘要： System and methods provide a message, generated based on a message authentication code (MAC), embedded in a look-up table associated with an image. The embedding of the message does not affect the image. The message may be used to authenticate the image.

公开(公告)号：US20070147684A1

公开(公告)日：2007-06-28

申请号：US11317818

申请日：2005-12-23

申请人： Robert Loce ,  Beilei Xu ,  Stuart Schweid ,  Son Nguyen ,  Michael Branciforte

发明人： Robert Loce ,  Beilei Xu ,  Stuart Schweid ,  Son Nguyen ,  Michael Branciforte

IPC分类号： G06K9/48 ,  G06K9/40

CPC分类号： G06K9/00986 ,  G06K9/4609 ,  G06K9/56

摘要： The teachings provided herein disclose a method for the identification of edge pixels within a digital image. The method operates by generating edge-state codes for a plurality of pairs of neighboring vectors of pixels within a given observation window, and generating an edge-identification code from the plurality of edge-state codes using a look-up table. The edge identification provides information that can be used for subsequent treatments such as rendering anti-aliased pixels, selecting preferred halftoning and tone reproduction for edge pixels, corner sharpening, and object recognition and segmentation.

摘要翻译： 本文提供的教导公开了一种用于识别数字图像内的边缘像素的方法。 该方法通过为给定观察窗口内的多个相邻像素向量对生成边缘状态码，并且使用查找表从多个边缘状态码生成边缘识别码来操作。 边缘识别提供可用于后续处理的信息，例如渲染抗锯齿像素，选择边缘像素的优选半色调和色调再现，角锐化和对象识别和分割。

公开(公告)号：US20070140571A1

公开(公告)日：2007-06-21

申请号：US11313980

申请日：2005-12-21

申请人： Zhigang Fan ,  Stuart Schweid ,  Martin Banton

发明人： Zhigang Fan ,  Stuart Schweid ,  Martin Banton

IPC分类号： G06K9/36 ,  G06K9/34

CPC分类号： G06K9/38 ,  G06K9/00456 ,  G06K2209/01

摘要： A method is provided for segmenting scanned image data in accordance with mixed raster content processing, further including windowing for purposes of extracting particularly classifiable objects, i.e., text, graphics or pictures. Application of predetermined parameter sets selected for more precise identification of the extracted objects are applied to the data for object extraction, object selection, color uniformity, and clustering for coloring similarity. A page background detection feature uses dual thresholding for segregating text (darker) areas from non-text (brighter) areas. Two histograms are created for the respective areas. Thresholds are generated from the two histograms and applied to the respective areas separately.

摘要翻译： 提供了一种根据混合光栅内容处理来对扫描图像数据进行分割的方法，其进一步包括用于提取特别可分类对象（即文本，图形或图片）的窗口。 将用于更精确地识别提取的对象的预定参数集的应用应用于用于对象提取，对象选择，颜色均匀性和聚类的数据用于着色相似性。 页面背景检测功能使用双阈值来隔离非文本（较亮）区域的文本（较暗）区域。 为各个区域创建两个直方图。 从两个直方图生成阈值并分别应用于各个区域。