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    System and method for filtering and binarization of images in the presence of specular noise
    1.
    发明授权
    System and method for filtering and binarization of images in the presence of specular noise 失效
    在存在镜面反射噪声的情况下对图像进行二值化处理的系统和方法

    公开(公告)号：US07236643B2

    公开(公告)日：2007-06-26

    申请号：US10104878

    申请日：2002-03-22

    申请人： Lawrence E. Albertelli ,  David L. Ii ,  Nina Kung

    发明人： Lawrence E. Albertelli ,  David L. Ii ,  Nina Kung

    IPC分类号： G06K9/00 ,  G06K9/34 ,  G06K9/40 ,  H04N1/40 ,  H04N1/38 ,  H04N5/00 ,  G09G5/00 ,  G09G5/02

    CPC分类号： G06K9/38 ,  G06K2209/01

    摘要： In order to render information contained in images more detectable in the presence of noise, the present invention discloses a system and method to binarize the images in the presence of noise. The method of this invention comprises the steps of applying a dynamic range reducing filter to the digitized image values, obtaining a range reduced image; applying an edge detecting filter to the range reduced image, obtaining a filtered image; and then, adaptively binarizing the digitized image utilizing the corresponding filtered image to obtain an adaptive threshold.

    摘要翻译： 为了在存在噪声的情况下使包含在图像中的信息更可检测，本发明公开了一种在存在噪声的情况下二值化图像的系统和方法。 本发明的方法包括以下步骤：对数字化图像值应用动态范围缩小滤波器，获得缩小后的图像; 将边缘检测滤波器应用于缩小后的图像，获得滤波图像; 然后利用相应的滤波图像自适应地二值化数字化图像以获得自适应阈值。

    System and method for fast binarization of bar codes in the presence of noise
    2.
    发明授权
    System and method for fast binarization of bar codes in the presence of noise 失效
    在存在噪声的条件下快速二值化条形码的系统和方法

    公开(公告)号：US07051937B2

    公开(公告)日：2006-05-30

    申请号：US10104150

    申请日：2002-03-22

    申请人： Lawrence E. Albertelli ,  David L. Ii ,  Nina Kung

    发明人： Lawrence E. Albertelli ,  David L. Ii ,  Nina Kung

    IPC分类号： G02B26/10

    CPC分类号： G06K7/14

    摘要： A system and method to binarize the bar code image in the presence of noise in order to render bar codes more detectable in the presence of noise. The method of this invention includes the steps of applying a gradient detecting filter to the bar code image, obtaining a filtered image, and then, adaptively binarizing the bar code image utilizing the corresponding filtered image to obtain an adaptive threshold. A system that implements the method is also described.

    摘要翻译： 在存在噪声的情况下二值化条形码图像的系统和方法，以便在存在噪声的情况下使条形码更可检测。 本发明的方法包括以下步骤：将梯度检测滤波器应用于条形码图像，获得滤波图像，然后利用相应滤波图像自适应地二值化条形码图像以获得自适应阈值。 还描述了实现该方法的系统。

    Method and system for determining and correcting image orientation angle
    4.
    发明授权
    Method and system for determining and correcting image orientation angle 失效
    确定和校正图像定向角度的方法和系统

    公开(公告)号：US07068856B2

    公开(公告)日：2006-06-27

    申请号：US10245426

    申请日：2002-09-17

    申请人： Lawrence E. Albertelli ,  David L. Ii ,  Nina Kung

    发明人： Lawrence E. Albertelli ,  David L. Ii ,  Nina Kung

    IPC分类号： G06K9/36

    CPC分类号： H04N1/3878 ,  G06K9/32 ,  G06K2209/01

    摘要： A simple and robust method for determining the orientation angle of a scanned image or the angular orientation of an object in an electronic image based on using descriptors of the image and systems that implement the method are disclosed. A system including means for acquiring the electronic image, means for determining image centroid coordinates, means for obtaining second order moments corresponding to the image, and, means for determining an orientation angle of a principal axis of the image implements the method.

    摘要翻译： 公开了一种用于基于使用实现该方法的图像的描述符和系统的图像来确定扫描图像的取向角或电子图像中的对象的角度定向的简单而鲁棒的方法。 一种包括用于获取电子图像的装置的系统，用于确定图像质心坐标的装置，用于获得与图像相对应的二阶矩的装置，以及用于确定图像的主轴的取向角的装置实现该方法。

    Grayscale image connected components segmentation
    5.
    发明授权
    Grayscale image connected components segmentation 失效
    灰度图像连接组件分割

    公开(公告)号：US06898314B2

    公开(公告)日：2005-05-24

    申请号：US10025789

    申请日：2001-12-26

    申请人： Nina Kung ,  Lawrence E. Albertelli ,  David L. Ii

    发明人： Nina Kung ,  Lawrence E. Albertelli ,  David L. Ii

    IPC分类号： G06K9/32 ,  G06K9/38 ,  G06K9/34

    CPC分类号： G06K9/325 ,  G06K9/38 ,  G06K2209/01

    摘要： A method and system of reading images. The method includes decimating an image and normalizing the decimated image. Then, rebinning grayscale pixel data associated with the decimated image and reassigning a selected range of grayscales representing a region of interest of the remapped grayscale pixel data to one while zeroing others. The method also includes labeling the connected pixels associated with the range of grayscales representing the region of interest and then extending the connected pixels through region growing using a preselected offset value. Lastly, the method includes filtering segmented regions of the connected pixels to eliminate certain candidates. The system is designed to implement the steps of the enumerated method.

    摘要翻译： 一种读取图像的方法和系统。 该方法包括抽取图像并对抽取的图像进行归一化。 然后，重新组合与抽取的图像相关联的灰度像素数据，并将表示重映射的灰度像素数据的感兴趣区域的所选择的灰度范围重新分配到一个，同时使另一个调零。 该方法还包括标记与表示感兴趣区域的灰度范围相关联的连接像素，然后使用预选的偏移值将连接的像素延伸通过区域生长。 最后，该方法包括过滤连接的像素的分段区域以消除某些候选。 该系统旨在实现枚举方法的步骤。

    SYSTEM AND METHOD FOR FILTERING AND BINARIZATION OF IMAGES IN THE PRESENCE OF SPECULAR NOISE
    7.
    发明申请
    SYSTEM AND METHOD FOR FILTERING AND BINARIZATION OF IMAGES IN THE PRESENCE OF SPECULAR NOISE 审中-公开
    在噪声的存在下，图像的滤波和二值化的系统和方法

    公开(公告)号：US20070154108A1

    公开(公告)日：2007-07-05

    申请号：US11685338

    申请日：2007-03-13

    申请人： Lawrence Albertelli ,  David Ii ,  Nina Kung

    发明人： Lawrence Albertelli ,  David Ii ,  Nina Kung

    IPC分类号： G06K9/38

    CPC分类号： G06K9/38 ,  G06K2209/01

    摘要： In order to render information contained in images more detectable in the presence of noise, the present invention discloses a system and method to binarize the images in the presence of noise. The method of this invention comprises the steps of applying a dynamic range reducing filter to the digitized image values, obtaining a range reduced image; applying an edge detecting filter to the range reduced image, obtaining a filtered image; and then, adaptively binarizing the digitized image utilizing the corresponding filtered image to obtain an adaptive threshold.

    摘要翻译： 为了在存在噪声的情况下使包含在图像中的信息更可检测，本发明公开了一种在存在噪声的情况下二值化图像的系统和方法。 本发明的方法包括以下步骤：对数字化图像值应用动态范围缩小滤波器，获得缩小后的图像; 将边缘检测滤波器应用于缩小后的图像，获得滤波图像; 然后利用相应的滤波图像自适应地二值化数字化图像以获得自适应阈值。

    Methods and systems for automatic detection of corners of a region
    8.
    发明申请
    Methods and systems for automatic detection of corners of a region 失效
    用于自动检测区域拐角的方法和系统

    公开(公告)号：US20050207652A1

    公开(公告)日：2005-09-22

    申请号：US10804965

    申请日：2004-03-19

    申请人： Lawrence Albertelli ,  Nina Kung

    发明人： Lawrence Albertelli ,  Nina Kung

    IPC分类号： G06K9/32 ,  G06K9/48

    CPC分类号： G06K9/3233 ,  G06K2209/01

    摘要： A method and system for detecting the corners of a region in cluttered images. The initial data for the method of this invention includes an image of a region of interest. The edges interior to the region of interest are detected by an edge detection method. The detected edges are culled in order to obtain a reduced edge group, where the reduced edge group includes a number of points. A measure of cornerness is obtained for each one point from the reduced edge group. A number of candidate corner points are selected from the reduced edge group by applying a predetermined criterion to the measure of cornerness. The region corner points are identified from the candidate corner points based on a predetermined relationship, such as a distance, between each candidate corner point and characteristic edge points of the region of interest, such as edge centers and corners. The system implements the method of this invention.

    摘要翻译： 用于检测杂乱图像中的区域的拐角的方法和系统。 本发明方法的初始数据包括感兴趣区域的图像。 通过边缘检测方法检测感兴趣区域内部的边缘。 检测到的边缘被淘汰以获得减少的边缘组，其中减少的边缘组包括多个点。 从减少边缘组的每个点获得角度的度量。 通过对角度的测量应用预定标准，从减少边缘组中选择多个候选角点。 基于每个候选角点与感兴趣区域的特征边缘点（例如边缘中心和拐角）之间的预定关系（例如距离），从候选角点识别区域角点。 该系统实现本发明的方法。