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    Determining an orientation direction of a color edge at a pixel location in a color image
    131.
    发明授权
    Determining an orientation direction of a color edge at a pixel location in a color image 有权

    公开(公告)号：US08792706B2

    公开(公告)日：2014-07-29

    申请号：US13426308

    申请日：2012-03-21

    Applicant: Xing Li ,  Meng Yao ,  Barbara L. Farrell

    Inventor： Xing Li ,  Meng Yao ,  Barbara L. Farrell

    IPC: G06K9/00

    CPC classification number: H04N1/58

    Abstract: What is disclosed is a system and method for determining an orientation direction of a color edge at a given pixel location in a binary color image. The orientation direction of the color edge is determined from eight pixel counts with each pixel count being a total number of pixels in each of eight regions of a window centered about a candidate pixel which resides along the color edge. The eight regions are associated with 8 compass points. The orientation of the edge is determined by a 1st, 2nd and 3rd tier control bits which are based upon the pixel counts of each region. The 1st, 2nd and 3rd tier control bits collectively form a 3-bit word. The 3-bit word defines the orientation direction. The teachings hereof provide an efficient way of performing binary edge orientation detection by making uses of intermediate results to simultaneously encode the edge orientation.

    SYSTEMS AND METHODS FOR COMPUTATION-EFFICIENT IMAGE PROCESSING SYSTEM ARCHITECTURE
    132.
    发明申请
    SYSTEMS AND METHODS FOR COMPUTATION-EFFICIENT IMAGE PROCESSING SYSTEM ARCHITECTURE 有权
    用于计算高效图像处理系统架构的系统和方法

    公开(公告)号：US20140050269A1

    公开(公告)日：2014-02-20

    申请号：US13587331

    申请日：2012-08-16

    Applicant: Xing Li ,  David Jon Metcalfe ,  Meng Yao ,  Michael Dale Stevens ,  Paul W. Phillippi

    Inventor： Xing Li ,  David Jon Metcalfe ,  Meng Yao ,  Michael Dale Stevens ,  Paul W. Phillippi

    IPC: H04N7/26

    CPC classification number: H04N1/56

    Abstract: Embodiments relate to systems and methods for a computation-efficient image processing system architecture. Image data can be transmitted from a computer, online service, and/or other image source to an output device having a set of image processing modules in two or more image paths, including an edge detection module and a video decoding module. The edge detection module can produce edge tag output, and the video decoding module, operating in parallel, can generate decoded video output. The edge tag output and decoded video output can be transmitted to a set of downstream image processing modules, including modules for color trapping, edge smoothing, and other operations. Because earlier processing stages share information with downstream modules which require the same or related data, redundant processing can be reduced or eliminated. Complex image operations can therefore be carried out, and high-quality output can be generated, without sacrificing responsiveness.

    Abstract translation: 实施例涉及用于计算高效图像处理系统架构的系统和方法。 图像数据可以从计算机，在线服务和/或其他图像源发送到包括边缘检测模块和视频解码模块的两个或多个图像路径中的具有一组图像处理模块的输出装置。 边缘检测模块可以产生边缘标签输出，并行的视频解码模块可以产生解码的视频输出。 边缘标签输出和解码视频输出可以传输到一组下游图像处理模块，包括用于色彩捕捉，边缘平滑和其他操作的模块。 因为较早的处理阶段与需要相同或相关数据的下游模块共享信息，所以可以减少或消除冗余处理。 因此，可以执行复杂的图像操作，并且可以产生高质量的输出，而不牺牲响应性。

    Bitmapped based trapping methods, apparatus and system by modifying non-black halftone pixel bitmap plane using estimated continuous tone value
    135.
    发明授权
    Bitmapped based trapping methods, apparatus and system by modifying non-black halftone pixel bitmap plane using estimated continuous tone value 有权
    基于位图的捕获方法，装置和系统，通过使用估计的连续色调值修改非黑色半色调像素位图平面

    公开(公告)号：US08437045B2

    公开(公告)日：2013-05-07

    申请号：US12548783

    申请日：2009-08-27

    Applicant: Meng Yao ,  John A. Handwork ,  Xing Li

    Inventor： Meng Yao ,  John A. Handwork ,  Xing Li

    IPC: H04N1/405 ,  H04N7/30

    CPC classification number: H04N1/58

    Abstract: Provided are bitmap based trapping methods, apparatus and systems. According to one exemplary method, black trapping color image data is performed by estimating the continuous tone values associated with non-black pixels near a qualified black pixel and subsequently, the estimated continuous tone values are halftoned at the qualified black pixel locations and ORed with the original bitmap data.

    Abstract translation: 提供了基于位图的陷印方法，装置和系统。 根据一个示例性方法，通过估计与合格的黑色像素附近的非黑色像素相关联的连续色调值来执行黑色捕获彩色图像数据，随后将估计的连续色调值在合格的黑色像素位置处半色调并与 原始位图数据。

    Compression scheme selection based on image data type and user selections
    136.
    发明授权
    Compression scheme selection based on image data type and user selections 有权
    基于图像数据类型和用户选择的压缩方案选择

    公开(公告)号：US08345998B2

    公开(公告)日：2013-01-01

    申请号：US12853831

    申请日：2010-08-10

    Applicant: Amal Z. Malik ,  Clara Cuciurean-Zapan ,  Xing Li

    Inventor： Amal Z. Malik ,  Clara Cuciurean-Zapan ,  Xing Li

    IPC: G06K9/36 ,  G06K9/34

    CPC classification number: H04N1/3333 ,  H03M7/3064 ,  H03M7/607 ,  H03M7/6082 ,  H04N2201/33357

    Abstract: Disclosed is a processor-implemented method for processing image data comprising a plurality of pixels and system for performing the method. The method includes the following acts: determining at least one type of data represented by the plurality of pixels, determining, for each type of data, a number of pixels from the image data representing that type of data in the image data, and determining a compression scheme for compressing the image data based on a relative or absolute amount of each type of data in accordance with a predetermined scheme. The type of data may be determined by received input (e.g., user selected type and compression quality) or by analyzing its pixels and comparing it to thresholds. Basing the compression technique on the data type allows for better selection of a compression technique (e.g., MRC or JPEG), and thus greater image quality, compression ratios, and file size.

    Abstract translation: 公开了一种用于处理包括多个像素的图像数据的处理器实现的方法和用于执行该方法的系统。 该方法包括以下动作：确定由多个像素表示的至少一种类型的数据，对于每种类型的数据，从表示图像数据中的该类型的数据的图像数据中确定一数量的像素，并且确定 压缩方案，用于根据预定方案基于每种类型的数据的相对或绝对量压缩图像数据。 数据的类型可以由接收的输入（例如，用户选择的类型和压缩质量）或通过分析其像素并将其与阈值进行比较来确定。 基于数据类型的压缩技术可以更好地选择压缩技术（例如，MRC或JPEG），从而更好地选择图像质量，压缩比和文件大小。

    Method for reducing registration defects in color printing
    137.
    发明授权
    Method for reducing registration defects in color printing 有权
    减少彩色印刷中注册缺陷的方法

    公开(公告)号：US08289573B2

    公开(公告)日：2012-10-16

    申请号：US12351932

    申请日：2009-01-12

    Applicant: Xing Li ,  Yingjun Bai

    Inventor： Xing Li ,  Yingjun Bai

    IPC: G06F15/00 ,  G06K9/34 ,  G03G15/01

    CPC classification number: H04N1/60

    Abstract: A method and system modify a rasterized digital image to reduce registration artifacts, the image having a black plane and a color plane by determining if a pixel is part of a connected black region and if the pixel is part of a connected color region. It is determined if the pixel is part of a connected black region and a connected color region that are contiguous. A dilation operation is performed on the color plane value of the pixel if the pixel is part of a connected black region and a connected color region that are contiguous.

    Abstract translation: 一种方法和系统通过确定像素是否是连接的黑色区域的一部分以及像素是连接的颜色区域的一部分来修改光栅化数字图像以减少配准伪像，图像具有黑色平面和色彩平面。 确定像素是连接的黑色区域和连续的颜色区域的一部分。 如果像素是连接的黑色区域的一部分和连续的连接的颜色区域，则对像素的色平面值执行扩张操作。

    Thin line detection in scanned image data
    138.
    发明授权
    Thin line detection in scanned image data 有权
    扫描图像数据中的细线检测

    公开(公告)号：US08254694B2

    公开(公告)日：2012-08-28

    申请号：US12480229

    申请日：2009-06-08

    Applicant: Xing Li ,  Ryan Metcalfe ,  Peter McCandlish ,  Barbara Farrell

    Inventor： Xing Li ,  Ryan Metcalfe ,  Peter McCandlish ,  Barbara Farrell

    IPC: G06K9/56

    CPC classification number: G06T7/13 ,  G06T7/136 ,  G06T2207/10008 ,  G06T2207/20021

    Abstract: Disclosed herein is a method for detecting thin lines in image data. The method is performed by a processor to process contone image data. The processing includes thresholding a window of pixels established in the contone domain to generate a binary window of image data, and then determining characteristics associated with on pixels or runs of the binary data. The characteristics (start and end locations, length of on runs) are then thresholded. The processing in the contone and binary domain are used to determine if a thin line exists in the window of image data. The disclosed method produces better quality output images and reduces the addition of false lines in an image.

    Abstract translation: 这里公开了一种用于检测图像数据中的细线的方法。 该方法由处理器执行以处理连续色调图像数据。 处理包括阈值化连续域中建立的像素窗口，以生成图像数据的二进制窗口，然后确定与二进制数据的像素或运行相关联的特征。 然后将特征（开始和结束位置，运行的长度）阈值化。 连续词和二进制域中的处理用于确定图像数据窗口中是否存在细线。 所公开的方法产生更好质量的输出图像并且减少图像中虚线的添加。

    SYSTEMS, METHODS AND DEVICES FOR ROTATING IMAGE TILES USING LINE SEGMENT READ BUFFERS
    139.
    发明申请
    SYSTEMS, METHODS AND DEVICES FOR ROTATING IMAGE TILES USING LINE SEGMENT READ BUFFERS 有权
    使用线段阅读缓冲区旋转图像平台的系统，方法和设备

    公开(公告)号：US20120206770A1

    公开(公告)日：2012-08-16

    申请号：US13026980

    申请日：2011-02-14

    Applicant: Theresa Michelle Marconi ,  Xing Li ,  William David Notovitz

    Inventor： Theresa Michelle Marconi ,  Xing Li ,  William David Notovitz

    IPC: G06F3/12

    CPC classification number: G06T3/602 ,  G06T3/606 ,  G06T2200/28

    Abstract: An embodiment generally relates to a device for rotating image tiles using line segment read buffers. The device comprises an image memory configured to store an image and a plurality of buffers, wherein the image comprises a plurality of tiles. The plurality of buffers comprises line segment read buffers configured to interface with the image memory to read line segments of the plurality of tiles from the image memory. A rotator logic module is configured to micro-rotate the line segments, aggregate the line segments as rotated tiles, and macro-rotate the rotated tiles to determine an address of the image memory at which to write the rotated tiles. Write buffers are configured to write the rotated tiles to the image memory at the determined address.

    Abstract translation: 实施例一般涉及使用线段读缓冲器旋转图像块的装置。 该设备包括被配置为存储图像和多个缓冲器的图像存储器，其中该图像包括多个瓦片。 多个缓冲器包括线段读取缓冲器，其被配置为与图像存储器接口以从图像存储器读取多个瓦片的线段。 旋转器逻辑模块被配置为微旋转线段，将线段聚集为旋转的瓦片，并且宏旋转旋转的瓦片以确定写入旋转的瓦片的图像存储器的地址。 写入缓冲区被配置为以确定的地址将旋转的块写入图像存储器。

    Real-time processing of grayscale image data
    140.
    发明授权
    Real-time processing of grayscale image data 有权
    实时处理灰度图像数据

    公开(公告)号：US08009931B2

    公开(公告)日：2011-08-30

    申请号：US12418419

    申请日：2009-04-03

    Applicant: Xing Li ,  Daniel A Mohabir ,  Roger L Triplett

    Inventor： Xing Li ,  Daniel A Mohabir ,  Roger L Triplett

    IPC: G06K9/36 ,  G06K15/00

    CPC classification number: H04N1/3873 ,  H04N1/3878

    Abstract: In a digital reproduction system incorporating a single pass scanner, accurate image processing results from processing a subset of grayscale image data. More specifically, scanlines that correspond to the leading edge of a document are stored and processed to detect skew and to obtain an appropriate correction. The lead edge correction is then applied to the entire grayscale image. Accordingly, the present systems and methods eliminate skew from grayscale images in real-time. The corrected image is rendered to binary and stored in electronic pre-collation memory and cropping, masking and other image editing operations can be performed on the binary image data before the image is printed.

    Abstract translation: 在包含单遍扫描仪的数字再现系统中，通过处理灰度图像数据的子集得到准确的图像处理。 更具体地，对应于文档的前沿的扫描线被存储和处理以检测偏斜并获得适当的校正。 然后将前沿校正应用于整个灰度图像。 因此，本系统和方法实时地从灰度图像中消除偏差。 将校正后的图像呈现为二进制并存储在电子预处理存储器中，并且可以在打印图像之前对二进制图像数据执行裁剪，掩蔽和其他图像编辑操作。

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