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    Segmenting Digital Image And Producing Compact Representation
    3.
    发明申请
    Segmenting Digital Image And Producing Compact Representation 有权
    分割数字图像和生成紧凑表示

    公开(公告)号：US20080123945A1

    公开(公告)日：2008-05-29

    申请号：US11720059

    申请日：2005-12-20

    申请人： James Philip Andrew ,  James Austin Besley ,  Steven Richard Irrgang ,  Yu-Ling Chen ,  Eric Wai-Shing Chong ,  Michael Jan Lawther ,  Timothy John Wark

    发明人： James Philip Andrew ,  James Austin Besley ,  Steven Richard Irrgang ,  Yu-Ling Chen ,  Eric Wai-Shing Chong ,  Michael Jan Lawther ,  Timothy John Wark

    IPC分类号： G06K9/34

    CPC分类号： G06K9/00456 ,  G06K9/38 ,  G06K2209/01 ,  G06T7/11 ,  G06T2207/10024 ,  G06T2207/30176

    摘要： A method (100), an apparatus, and a computer program product for automatically producing a compact representation of a colour document are disclosed. In the method, a digital image of a colour-document page is segmented (110) into connected components in one-pass, block raster order. The digital image of the page is partitioned into foreground and background images using layout analysis (120) based on compact, connected-component statistics of the whole page. At least one portion of the background image where at least one portion of the foreground image obscures the background image is inpainting (520) in one-pass block raster order. The foreground and background images are combined (130) to form a compact document. A method, an apparatus, and a computer program product for segmenting a digital image comprising a plurality of pixels are also disclosed.

    摘要翻译： 公开了一种用于自动产生彩色文档的紧凑表示的方法（100），装置和计算机程序产品。 在该方法中，彩色文档页面的数字图像以一次通过的块光栅顺序被分割成连接的分量（110）。 使用布局分析（120）将页面的数字图像划分为前景和背景图像，基于整个页面的紧凑的连接分量统计信息。 背景图像的至少一部分，其中前景图像的至少一部分遮盖背景图像，以一遍块光栅顺序进行修复（520）。 组合前景和背景图像（130）以形成紧凑的文档。 还公开了一种用于分割包括多个像素的数字图像的方法，装置和计算机程序产品。

    Digital image compression and decompression
    4.
    发明授权
    Digital image compression and decompression 有权
    数字图像压缩和解压缩

    公开(公告)号：US06570510B2

    公开(公告)日：2003-05-27

    申请号：US10003098

    申请日：2001-12-06

    申请人： Yu-Ling Chen ,  James Philip Andrew

    发明人： Yu-Ling Chen ,  James Philip Andrew

    IPC分类号： H03M734

    CPC分类号： H04N19/645

    摘要： The apparatus comprises a discrete wavelet transform (DWT) engine, a code block manager, and an entropy encoder. The code block manager comprises at least one controller, which losslessly compresses the transform coefficients and stores them in a code block storage for buffering. The entropy coder comprises at least one entropy encoder, each comprising a decoder for decoding the losslessly compressed transformed coefficients prior to entropy encoding.

    摘要翻译： 该装置包括离散小波变换（DWT）引擎，码块管理器和熵编码器。 代码块管理器包括至少一个控制器，其无损地压缩变换系数并将其存储在用于缓冲的代码块存储器中。 熵编码器包括至少一个熵编码器，每个熵编码器包括用于在熵编码之前对无损压缩的变换系数进行解码的解码器。

    Segmenting digital image and producing compact representation
    5.
    发明授权
    Segmenting digital image and producing compact representation 有权
    分割数字图像并生成紧凑的表示

    公开(公告)号：US07991224B2

    公开(公告)日：2011-08-02

    申请号：US11720059

    申请日：2005-12-20

    申请人： James Philip Andrew ,  James Austin Besley ,  Steven Richard Irrgang ,  Yu-Ling Chen ,  Eric Wai-Shing Chong ,  Michael Jan Lawther ,  Timothy John Wark

    发明人： James Philip Andrew ,  James Austin Besley ,  Steven Richard Irrgang ,  Yu-Ling Chen ,  Eric Wai-Shing Chong ,  Michael Jan Lawther ,  Timothy John Wark

    IPC分类号： G06K9/34 ,  G06K9/00 ,  G06K9/36

    CPC分类号： G06K9/00456 ,  G06K9/38 ,  G06K2209/01 ,  G06T7/11 ,  G06T2207/10024 ,  G06T2207/30176

    摘要： A method (100), an apparatus, and a computer program product for automatically producing a compact representation of a colour document are disclosed. In the method, a digital image of a colour-document page is segmented (110) into connected components in one-pass, block raster order. The digital image of the page is partitioned into foreground and background images using layout analysis (120) based on compact, connected-component statistics of the whole page. At least one portion of the background image where at least one portion of the foreground image obscures the background image is inpainting (520) in one-pass block raster order. The foreground and background images are combined (130) to form a compact document. A method, an apparatus, and a computer program product for segmenting a digital image comprising a plurality of pixels are also disclosed.

    摘要翻译： 公开了一种用于自动产生彩色文档的紧凑表示的方法（100），装置和计算机程序产品。 在该方法中，彩色文档页面的数字图像以一次通过的块光栅顺序被分割成连接的分量（110）。 使用布局分析（120）将页面的数字图像划分为前景和背景图像，基于整个页面的紧凑的连接分量统计信息。 背景图像的至少一部分，其中前景图像的至少一部分遮盖背景图像，以一遍块光栅顺序进行修复（520）。 组合前景和背景图像（130）以形成紧凑的文档。 还公开了一种用于分割包括多个像素的数字图像的方法，装置和计算机程序产品。

    Colour document layout analysis with multi-level decomposition
    6.
    发明授权
    Colour document layout analysis with multi-level decomposition 有权
    彩色文档布局分析与多层次分解

    公开(公告)号：US08532374B2

    公开(公告)日：2013-09-10

    申请号：US12327247

    申请日：2008-12-03

    申请人： Yu-Ling Chen ,  Steven Richard Irrgang ,  Eric Wai-Shing Chong

    发明人： Yu-Ling Chen ,  Steven Richard Irrgang ,  Eric Wai-Shing Chong

    IPC分类号： G06K9/00

    CPC分类号： G06K9/00463 ,  H04N1/40062

    摘要： Disclosed is a method of classifying segmented contents of a scanned image of a document. The method comprise partitioning the scanned image into color segmented tiles at pixel level. The method then generates superpositioned segmented contents, each segmented content representing related color segments in at least one color segmented tile. Statistics are then calculated for each segmented content using pixel level statistics from each of the tile color segments included in segmented content, and then determines a classification for each segmented content based on the calculated statistics. The segmented content may be macroregions. The macroregions may form part of a multi-layered document representation of the document. Each of a plurality of tiles of predetermined size of the image are converted into a representation having a plurality of layers, the representation corresponding to at least one said tiles comprising multiple colored layers, each tile comprising a superposition of the corresponding colored layers. For each of the colored layers, merging is performed with adjacent ones of the tiles, thereby generating a multi-layered document representation.

    摘要翻译： 公开了对文档的扫描图像的分割内容进行分类的方法。 该方法包括在像素级别将扫描图像分割成颜色分割的瓦片。 然后，该方法生成叠加的分段内容，每个分段内容表示至少一个颜色分割图块中的相关颜色段。 然后使用来自分段内容中包括的每个瓦片颜色段的像素级统计信息，针对每个分段内容计算统计数据，然后基于所计算的统计量来确定每个分段内容的分类。 分段内容可能是宏观区域。 宏区域可以形成文档的多层文档表示的一部分。 图像的预定尺寸的多个瓦片中的每一个被转换成具有多个层的表示，所述表示对应于至少一个包括多个着色层的所述瓦片，每个瓦片包括相应着色层的叠加。 对于每个彩色层，对相邻的瓦片执行合并，从而生成多层文档表示。

    Finding text regions from coloured image independent of colours
    8.
    发明申请
    Finding text regions from coloured image independent of colours 有权
    从彩色图像中寻找独立于颜色的文本区域

    公开(公告)号：US20120155754A1

    公开(公告)日：2012-06-21

    申请号：US13324762

    申请日：2011-12-13

    申请人： Yu-Ling Chen ,  Kailash Nandish Ballu

    发明人： Yu-Ling Chen ,  Kailash Nandish Ballu

    IPC分类号： G06K9/34

    CPC分类号： G06K9/4638 ,  G06K9/00456 ,  G06K2209/01

    摘要： Methods (1200), apparatuses, and computer program for finding a region containing text in a colour bitmap image comprising pixels are provided. Connected components (CCs) are generated (1200) from the colour bitmap image by grouping substantially similarly coloured and adjacent pixels. Independently of colour, which of the connected components are text connected components are determined (1212) dependent upon attributes of the generated connected components. For each text CC) a value is assigned (1214) to each tile that comprises at least a portion of the text connected component. The value indicates the presence of text overlapping the tile. Each tile comprises pixels of the colour bitmap image. The region containing text in the colour bitmap image is determined (1216) dependent upon the assigned values of the tiles.

    摘要翻译： 提供了用于在包括像素的彩色位图图像中找到包含文本的区域的方法（1200），设备和计算机程序。 通过对基本相似的彩色和相邻像素进行分组，从彩色位图图像生成连接的分量（CC）（1200）。 独立于颜色，哪个连接的组件是文本连接的组件被确定（1212）取决于所生成的连接组件的属性。 对于每个文本CC）向包括文本连接分量的至少一部分的每个瓦片分配值（1214）。 该值表示与图块重叠的文本的存在。 每个瓦片包括彩色位图图像的像素。 确定（1216）颜色位图图像中包含文本的区域取决于图块的分配值。

    Apparatus and method for estimating and compensating sampling frequency offset
    9.
    发明申请
    Apparatus and method for estimating and compensating sampling frequency offset 审中-公开
    用于估计和补偿采样频率偏移的装置和方法

    公开(公告)号：US20090135978A1

    公开(公告)日：2009-05-28

    申请号：US12073819

    申请日：2008-03-11

    申请人： Chi-Tung Chang ,  Tzu-Wen Sung ,  Chuen-Heng Wang ,  Yu-Ling Chen

    发明人： Chi-Tung Chang ,  Tzu-Wen Sung ,  Chuen-Heng Wang ,  Yu-Ling Chen

    IPC分类号： H04L7/00 ,  H04L25/00

    CPC分类号： H04L27/2657 ,  H04L27/0014 ,  H04L27/2675 ,  H04L2027/0067

    摘要： An apparatus and method for estimating and compensating sampling frequency offset are disclosed. Particularly, a linear mathematical scheme is employed to calculate the related phase difference for saving use of multipliers and storage circuit used for sampling frequency offset estimation and compensation in the conventional art. The preferred embodiment of the invention has a first step to receive signals by the offset estimating circuit. Next, the phase value for each signal is calculated, and the pilot signal therein is retrieved. Next, a phase difference is obtained by subtraction operation between the received symbols and the delayed pilot symbols. And a circuit for storing the phase differences is incorporated. Next, a phase difference between the adjacent symbols is obtained by accumulating the phases and processing the least-error-sum-of-squares operation. Therefore, an estimation value of the sampling frequency offset of a communication system is obtained, and further to compensate the offset.

    摘要翻译： 公开了一种用于估计和补偿采样频率偏移的装置和方法。 特别地，采用线性数学方案来计算用于节省使用乘法器的相关相位差和用于采样频率偏移估计和补偿的存储电路。 本发明的优选实施例具有通过偏移估计电路接收信号的第一步骤。 接下来，计算每个信号的相位值，并且检索其中的导频信号。 接下来，通过在接收到的符号和延迟的导频符号之间的减法运算获得相位差。 并且并入存储相位差的电路。 接下来，相邻符号之间的相位差通过累积相位和处理最小二乘方差运算来获得。 因此，获得通信系统的采样频率偏移的估计值，并进一步补偿偏移。

    Screwless device for attaching and detaching disk drive
    10.
    发明申请
    Screwless device for attaching and detaching disk drive 审中-公开
    用于安装和拆卸磁盘驱动器的无螺纹装置

    公开(公告)号：US20070070595A1

    公开(公告)日：2007-03-29

    申请号：US11236586

    申请日：2005-09-28

    申请人： Yu-Ling Chen ,  Yin-Kang Tu

    发明人： Yu-Ling Chen ,  Yin-Kang Tu

    IPC分类号： G06F1/16

    CPC分类号： G06F1/187

    摘要： A screwless device for attaching and detaching a disk drive comprises a base and a frame body. The base comprises at least a rotation bracket, an elastic location plate, a fixing plate, and protrudent joints. Two first axle holes are located on both sides of the rotation bracket respectively for being inserted by an axle to which a torsion spring is sleeved. A buckle hole is formed on the elastic location plate. The frame body is designed for being attached to the base. The frame body comprises: a mounting chamber for holding the disk drive; an axle-connecting part; and a buckle means mounted on the same side of the frame body as the elastic location plate. Second axle holes and buckle notches are formed on the axle-connecting part. Several open trenches are formed in opposition to the protrudent joints.

    摘要翻译： 用于安装和拆卸磁盘驱动器的无螺钉装置包括基座和框体。 基座至少包括旋转支架，弹性定位板，固定板和突出接头。 两个第一轴孔分别位于旋转支架的两侧，以便被一个扭转弹簧套在其上的轴插入。 在弹性定位板上形成带扣孔。 框体被设计成附接到基座。 框架体包括：用于保持盘驱动器的安装室; 轴连接部; 以及安装在框架主体与弹性定位板相同侧的带扣装置。 第二轴孔和带扣缺口形成在轴连接部分上。 形成与突出接头相对的几个开放的沟槽。