公开(公告)号：US08050493B2

公开(公告)日：2011-11-01

申请号：US12058942

申请日：2008-03-31

Applicant: Wei Ming

Inventor： Wei Ming

IPC: G06K9/00

CPC classification number: H04N1/409 ,  G06T5/30 ,  H04N2201/3233 ,  H04N2201/3235 ,  H04N2201/3269

Abstract: An improved image processing method for generating an image from a hard copy document includes the following steps: scanning the hard copy document multiple times using a scanner to generate a plurality of images; performing deskewing for each image; performing translational compensation for each image; selecting two images (first and second) among the plurality of images that have the highest similarity to each other; dilating the first image; converting the dilated first image into a binary form; eroding the converted first image to generate a first processed image; eroding the second image; converting the eroded second image into a binary form; dilating the converted second image to generate a second processed image; and extracting common portions of the first and second processed images to generate a final image. This method can be used to generate high quality scanned images of hard copy documents for purposes of document authentication.

Abstract translation: 一种用于从硬拷贝文档生成图像的改进的图像处理方法包括以下步骤：使用扫描仪多次扫描硬拷贝文档以生成多个图像; 执行每个图像的去歪斜; 对每幅图像进行翻译补偿; 选择彼此之间具有最高相似度的多个图像中的两个图像（第一和第二图像）; 扩大第一幅图像; 将扩张的第一图像转换成二进制形式; 侵蚀转换的第一图像以产生第一处理图像; 侵蚀第二幅图像; 将侵蚀的第二图像转换成二进制形式; 扩展转换的第二图像以产生第二处理图像; 并且提取第一和第二处理图像的公共部分以生成最终图像。 该方法可以用于生成用于文档认证的硬拷贝文档的高质量扫描图像。

公开(公告)号：US08038064B2

公开(公告)日：2011-10-18

申请号：US12419202

申请日：2009-04-06

Applicant: Wei Ming ,  Hiroshi Tomita

Inventor： Wei Ming ,  Hiroshi Tomita

IPC: G06K7/00

CPC classification number: G06K19/06037 ,  G06K2019/06225

Abstract: A color barcode can record much more amount of information than black white barcode. However, the problem of the color barcode is that it is easy to lose integrity or authenticity in printing and copy generation. This invention provides an apparatus and a method to keep the integrity or authenticity of the color barcode. Such is accomplished by the color reference portion of the color barcode including reference color tiles filled with colors which are used in a data portion of the color barcode and an apparatus and a method for producing, reproducing and reading such color barcode.

Abstract translation: 彩色条形码可以记录比黑色条形码更多的信息量。 然而，彩色条形码的问题在于，在打印和拷贝生成中容易失去完整性或真实性。 本发明提供了一种保持彩色条形码的完整性或真实性的装置和方法。 这是通过彩色条形码的颜色参考部分实现的，该颜色条形码包括用于彩色条形码的数据部分中使用的颜色的参考彩色图像，以及用于制作，再现和读取这些彩色条形码的装置和方法。

公开(公告)号：US07999657B2

公开(公告)日：2011-08-16

申请号：US12632059

申请日：2009-12-07

Applicant: Yibin Tian ,  Wei Ming

Inventor： Yibin Tian ,  Wei Ming

IPC: G05B19/00 ,  H04N1/40 ,  G06K9/00

CPC classification number: G06K9/3216 ,  G06K9/2063 ,  G06K2209/01

Abstract: A method for authenticating a printed document is disclosed. Barcode stamps are added to an original document image near the corners of the page to act as registration markers. The original document image bearing the barcode stamps is printed and circulated, while the original document image is stored in a database. To authenticate a printed document, the printed document is scanned into a target document image, which is compared to the stored original document image. The barcode stamps are used as registration markers to perform a global image registration. Then, the target image and the original image are divided into multiple sub-images, and local image registration is performed on the sub-images before performing an image comparison. Difference sub-images are generated from the pairs of sub-images, and merged into a global difference image for the purpose of detecting any alterations in the printed document.

Abstract translation: 公开了一种认证打印文件的方法。 条形码邮票被添加到页面附近的原始文档图像中，作为注册标记。 打印并循环携带条形码邮票的原始文件图像，同时将原始文档图像存储在数据库中。 为了对打印文件进行身份验证，将打印的文档扫描到目标文档图像中，将其与存储的原始文档图像进行比较。 条形码邮票用作注册标记，用于执行全局图像注册。 然后，将目标图像和原始图像分割为多个子图像，并且在执行图像比较之前对子图像执行局部图像配准。 差异子图像是从子对图像生成的，并且被合并到全局差分图像中以便检测印刷文档中的任何改变。

公开(公告)号：US07925045B2

公开(公告)日：2011-04-12

申请号：US11853004

申请日：2007-09-10

Applicant: Maria Qian Zhao ,  Wei Ming

Inventor： Maria Qian Zhao ,  Wei Ming

IPC: G06K9/00 ,  H04L9/32

CPC classification number: H04N1/32208 ,  G06K9/6202 ,  G06T1/0042 ,  G06T1/0078 ,  G06T2201/0051 ,  G06T2201/0061 ,  G06T2201/0083 ,  H04N1/32203 ,  H04N1/32293 ,  H04N1/32325 ,  H04N2201/3233 ,  H04N2201/3235 ,  H04N2201/3269 ,  H04N2201/3271

Abstract: A document authentication method uses a watermark added in a printed document to detection possible alterations made to the document after it was printed. First, a visible watermark in the form of a dot pattern is overlapped with an original digital image. The watermarked image is printed out as a halftone image at a first resolution. The watermark in the printed document appears as a light gray shade. Later, the printed document is scanned back using a grayscale scan at a resolution higher than the first resolution. In the scanned image, altered areas would appear flat (lacking intensity variation) whereas unaltered areas will have relatively large density variations due to the watermark dots and the fact that the image was halftone printed at a lower resolution. Alternations are detected by identifying flat areas within the image using a combination of flat block detection and a multiple thresholds method.

Abstract translation: 文档认证方法使用在打印文档中添加的水印来检测在打印文档之后对文档进行的可能的改变。 首先，点图案形式的可见水印与原始数字图像重叠。 水印图像以第一分辨率作为半色调图像打印出来。 打印文档中的水印显示为浅灰色阴影。 之后，使用灰度扫描以高于第一分辨率的分辨率扫描打印的文档。 在扫描图像中，改变的区域将显得平坦（缺少强度变化），而未改变的区域将由于水印点而具有相对较大的密度变化，以及图像以较低分辨率打印的事实。 通过使用平面块检测和多阈值方法的组合来识别图像内的平坦区域来检测交替。

公开(公告)号：US20090245678A1

公开(公告)日：2009-10-01

申请号：US12058942

申请日：2008-03-31

Applicant: Wei Ming

Inventor： Wei Ming

IPC: G06K9/42 ,  H04N1/40

CPC classification number: H04N1/409 ,  G06T5/30 ,  H04N2201/3233 ,  H04N2201/3235 ,  H04N2201/3269

Abstract: An improved image processing method for generating an image from a hard copy document includes the following steps: scanning the hard copy document multiple times using a scanner to generate a plurality of images; performing deskewing for each image; performing translational compensation for each image; selecting two images (first and second) among the plurality of images that have the highest similarity to each other; dilating the first image; converting the dilated first image into a binary form; eroding the converted first image to generate a first processed image; eroding the second image; converting the eroded second image into a binary form; dilating the converted second image to generate a second processed image; and extracting common portions of the first and second processed images to generate a final image. This method can be used to generate high quality scanned images of hard copy documents for purposes of document authentication.

Abstract translation: 一种用于从硬拷贝文档生成图像的改进的图像处理方法包括以下步骤：使用扫描仪多次扫描硬拷贝文档以生成多个图像; 执行每个图像的去歪斜; 对每幅图像进行翻译补偿; 选择彼此之间具有最高相似度的多个图像中的两个图像（第一和第二图像）; 扩大第一幅图像; 将扩张的第一图像转换成二进制形式; 侵蚀转换的第一图像以产生第一处理图像; 侵蚀第二幅图像; 将侵蚀的第二图像转换成二进制形式; 扩展转换的第二图像以产生第二处理图像; 并且提取第一和第二处理图像的公共部分以生成最终图像。 该方法可以用于生成用于文档认证的硬拷贝文档的高质量扫描图像。

公开(公告)号：US20090194592A1

公开(公告)日：2009-08-06

申请号：US12419202

申请日：2009-04-06

Applicant: Wei Ming ,  Hiroshi Tomita

Inventor： Wei Ming ,  Hiroshi Tomita

IPC: G06K7/00 ,  G06K19/06

CPC classification number: G06K19/06037 ,  G06K2019/06225

Abstract: A color barcode can record much more amount of information than black white barcode. However, the problem of the color barcode is that it is easy to lose integrity or authenticity in printing and copy generation. This invention provides an apparatus and a method to keep the integrity or authenticity of the color barcode. Such is accomplished by the color reference portion of the color barcode including reference color tiles filled with colors which are used in a data portion of the color barcode and an apparatus and a method for producing, reproducing and reading such color barcode.

Abstract translation: 彩色条形码可以记录比黑色条形码更多的信息量。 然而，彩色条形码的问题在于，在打印和拷贝生成中容易失去完整性或真实性。 本发明提供了一种保持彩色条形码的完整性或真实性的装置和方法。 这是通过彩色条形码的颜色参考部分实现的，该颜色条形码包括用于彩色条形码的数据部分中使用的颜色的参考彩色图像，以及用于制作，再现和读取这些彩色条形码的装置和方法。

公开(公告)号：US20090067666A1

公开(公告)日：2009-03-12

申请号：US11853004

申请日：2007-09-10

Applicant: Maria Qian Zhao ,  Wei Ming

Inventor： Maria Qian Zhao ,  Wei Ming

IPC: G06K9/00 ,  G06K15/00 ,  H04K1/00

CPC classification number: H04N1/32208 ,  G06K9/6202 ,  G06T1/0042 ,  G06T1/0078 ,  G06T2201/0051 ,  G06T2201/0061 ,  G06T2201/0083 ,  H04N1/32203 ,  H04N1/32293 ,  H04N1/32325 ,  H04N2201/3233 ,  H04N2201/3235 ,  H04N2201/3269 ,  H04N2201/3271

Abstract: A document authentication method uses a watermark added in a printed document to detection possible alterations made to the document after it was printed. First, a visible watermark in the form of a dot pattern is overlapped with an original digital image. The watermarked image is printed out as a halftone image at a first resolution. The watermark in the printed document appears as a light gray shade. Later, the printed document is scanned back using a grayscale scan at a resolution higher than the first resolution. In the scanned image, altered areas would appear flat (lacking intensity variation) whereas unaltered areas will have relatively large density variations due to the watermark dots and the fact that the image was halftone printed at a lower resolution. Alternations are detected by identifying flat areas within the image using a combination of flat block detection and a multiple thresholds method.

Abstract translation: 文档认证方法使用在打印文档中添加的水印来检测在打印文档之后对文档进行的可能的改变。 首先，点图案形式的可见水印与原始数字图像重叠。 水印图像以第一分辨率作为半色调图像打印出来。 打印文档中的水印显示为浅灰色阴影。 之后，使用灰度扫描以高于第一分辨率的分辨率扫描打印的文档。 在扫描图像中，改变的区域将显得平坦（缺乏强度变化），而未改变的区域将由于水印点而具有相对较大的密度变化，以及图像以较低分辨率打印的事实。 通过使用平面块检测和多阈值方法的组合来识别图像内的平坦区域来检测交替。

公开(公告)号：US20070067713A1

公开(公告)日：2007-03-22

申请号：US11231768

申请日：2005-09-22

Applicant: Wei Ming

Inventor： Wei Ming

IPC: G06F17/24 ,  G06F17/00

CPC classification number: G06F17/2211 ,  H04N1/3876

Abstract: The present application relates to an image processing apparatus which can match and combines two office documents correctly.

Abstract translation: 本申请涉及一种可以正确匹配和组合两个办公文档的图像处理装置。

公开(公告)号：US20070065041A1

公开(公告)日：2007-03-22

申请号：US11231770

申请日：2005-09-22

Applicant: Wei Ming

Inventor： Wei Ming

IPC: G06K9/36

CPC classification number: G06T7/33

Abstract: The present application relates to an image processing apparatus which can match and combines two map images correctly.

Abstract translation: 本申请涉及能够正确匹配并组合两张地图图像的图像处理装置。

公开(公告)号：US20060027660A1

公开(公告)日：2006-02-09

申请号：US10913347

申请日：2004-08-09

Applicant: Wei Ming ,  Hiroshi Tomita

Inventor： Wei Ming ,  Hiroshi Tomita

IPC: G06K7/12 ,  G06K19/06

CPC classification number: G06K19/06037 ,  G06K2019/06225

Abstract: A color barcode can record much more amount of information than black white barcode. However, the problem of the color barcode is that it is easy to lose integrity or authenticity in printing and copy generation. This invention provides an apparatus and a method to keep the integrity or authenticity of the color barcode. Such is accomplished by the color reference portion of the color barcode including reference color tiles filled with colors which are used in a data portion of the color barcode and an apparatus and a method for producing, reproducing and reading such color barcode.