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1. 发明公开

EP1096391A2 Automatic categorization of documents using document signatures 审中-公开
标题翻译：自动分类冯Dokumenten mit Dokumentenunterschriften
公开(公告)号：EP1096391A2
公开(公告)日：2001-05-02
申请号：EP00118884.6
申请日：2000-08-31
申请人： Hewlett-Packard Company, A Delaware Corporation
发明人： Shmueli, Oded , Elad, Michael , Greig, Darryl , Staelin, Carl
IPC分类号： G06F17/30
CPC分类号： G06F17/3071 , G06K9/00463 , Y10S707/99933 , Y10S707/99936 , Y10S707/99942
摘要： A method of quickly and automatically comparing a new document to a large number of previously seen documents and identifying the document type. First, provide a plurality of document type distributions, each document type distribution describes layout characteristics of an independent document type and may include a plurality of data points. Each document type distribution includes data derived from at least one basis document signature which may include data defining pixels of a low-resolution image of the independent basis document resolved to between 1 and 75 dots per inch or may include document segmentation data derived from the independent basis document. Next provide a new electronic document. Then create new document signature from the new electronic document. Next, distances between the new document signature and each of the plurality of document type distributions are calculated using an algorithm based on a Bayesian framework for a Gaussian distribution. The distances calculated may be Euclidean distances or may be Mahalanobis distances. Additionally, calculating the distances may include weighting the value given each of a plurality of data points in the document signatures based on the usefulness of each of the plurality of data points in distinguishing between the document signatures. Next, select at least one candidate document type for the new electronic document from among the independent document types described by the plurality of document type distributions. The selection of the at least one candidate document type may include selecting a preselected fixed number of the independent document types or may include selecting the independent document types described by those of the plurality of document type distributions having calculated distances that are within a preselected threshold distance of the smallest of the distances calculated. In addition, the invention provides for a program storage medium readable by computer, tangibly embodying a program of instructions executable by the computer to perform the method steps described above.
摘要翻译：一种快速自动地将新文档与大量先前查看的文档进行比较并识别文档类型的方法。首先，提供多个文档类型分发，每个文档类型分布描述独立文档类型的布局特征，并且可以包括多个数据点。每个文档类型分布包括从至少一个基本文档签名导出的数据，其可以包括分辨为每英寸1至75个点之间的独立基础文档的低分辨率图像的像素的数据，或者可以包括从独立基准文档导出的文档分割数据基础文件。接下来提供一个新的电子文档。然后从新的电子文档中创建新的文档签名。接下来，使用基于用于高斯分布的贝叶斯框架的算法来计算新文档签名与多个文档类型分布中的每一个之间的距离。计算的距离可以是欧氏距离，也可以是马氏距离。另外，计算距离可以包括基于在区分文档签名的多个数据点中的每个数据点的有用性来对文档签名中的多个数据点中的每一个进行加权的值进行加权。接下来，从由多个文档类型分布描述的独立文档类型中选择用于新的电子文档的至少一个候选文档类型。所述至少一个候选文档类型的选择可以包括选择独立文档类型的预先选定的固定数量，或者可以包括选择由具有计算的距离的多个文档类型分布中描述的独立文档类型所描述的独立文档类型，该距离在预选的阈值距离计算的最小距离。此外，本发明提供了一种可由计算机读取的程序存储介质，其有形地体现了可由计算机执行以执行上述方法步骤的指令程序。

2. 发明公开

EP1096391A3 Automatic categorization of documents using document signatures 审中-公开
标题翻译：与文件签名自动归类文档
公开(公告)号：EP1096391A3
公开(公告)日：2004-05-26
申请号：EP00118884.6
申请日：2000-08-31
申请人： Hewlett-Packard Company, A Delaware Corporation
发明人： Shmueli, Oded , Elad, Michael , Greig, Darryl , Staelin, Carl
IPC分类号： G06F17/30
CPC分类号： G06F17/3071 , G06K9/00463 , Y10S707/99933 , Y10S707/99936 , Y10S707/99942
摘要： A method of quickly and automatically comparing a new document to a large number of previously seen documents and identifying the document type. First, provide a plurality of document type distributions, each document type distribution describes layout characteristics of an independent document type and may include a plurality of data points. Each document type distribution includes data derived from at least one basis document signature which may include data defining pixels of a low-resolution image of the independent basis document resolved to between 1 and 75 dots per inch or may include document segmentation data derived from the independent basis document. Next provide a new electronic document. Then create new document signature from the new electronic document. Next, distances between the new document signature and each of the plurality of document type distributions are calculated using an algorithm based on a Bayesian framework for a Gaussian distribution. The distances calculated may be Euclidean distances or may be Mahalanobis distances. Additionally, calculating the distances may include weighting the value given each of a plurality of data points in the document signatures based on the usefulness of each of the plurality of data points in distinguishing between the document signatures. Next, select at least one candidate document type for the new electronic document from among the independent document types described by the plurality of document type distributions. The selection of the at least one candidate document type may include selecting a preselected fixed number of the independent document types or may include selecting the independent document types described by those of the plurality of document type distributions having calculated distances that are within a preselected threshold distance of the smallest of the distances calculated. In addition, the invention provides for a program storage medium readable by computer, tangibly embodying a program of instructions executable by the computer to perform the method steps described above.

3. 发明公开

EP0998122A3 Apparatus and method of increasing scanner resolution 审中-公开
标题翻译：装置和方法用于增加扫描仪的分辨率
公开(公告)号：EP0998122A3
公开(公告)日：2000-11-29
申请号：EP99308489.6
申请日：1999-10-27
申请人： Hewlett-Packard Company
发明人： Elad, Michael , Altunbasak, Yucel , Shaked, Doron , Patti, Andrew J. , Hel-Or, Yacov c/o School of Computer Science , Taubman, David
IPC分类号： H04N1/393 , G06T5/00
CPC分类号： H04N1/3935
摘要： Hardware resolution of a scanner (10) is increased without improving the quality of the scanner's sensor array (34) or imaging optics (32). Multiple representations of an image are generated by a scanner (10). The scanner (10) is configured to intentionally induce a motion error between the representations. A higher resolution image is estimated from the multiple, lower resolution representations by using a super resolution algorithm such as Image Demosaicing and Enhancement ("IDE"), a Projections onto Convex Sets ("POCS"), Maximum Likelihood ("ML"), or Maximum A-posteriori Probability ("MAP") based algorithm.

4. 发明公开

EP0998122A2 Apparatus and method of increasing scanner resolution 审中-公开
标题翻译：装置和方法用于增加扫描仪的分辨率
公开(公告)号：EP0998122A2
公开(公告)日：2000-05-03
申请号：EP99308489.6
申请日：1999-10-27
申请人： Hewlett-Packard Company
发明人： Elad, Michael , Altunbasak, Yucel , Shaked, Doron , Patti, Andrew J. , Hel-Or, Yacov , Taubman, David
IPC分类号： H04N1/393
CPC分类号： H04N1/3935
摘要： Hardware resolution of a scanner (10) is increased without improving the quality of the scanner's sensor array (34) or imaging optics (32). Multiple representations of an image are generated by a scanner (10). The scanner (10) is configured to intentionally induce a motion error between the representations. A higher resolution image is estimated from the multiple, lower resolution representations by using a super resolution algorithm such as Image Demosaicing and Enhancement ("IDE"), a Projections onto Convex Sets ("POCS"), Maximum Likelihood ("ML"), or Maximum A-posteriori Probability ("MAP") based algorithm.
摘要翻译：扫描仪（10）的硬件分辨率增加而不提高扫描仪的传感器阵列（34）或成像光学器件（32）的质量。的图像的多个表示由扫描器（10）生成的。的扫描器（10）是被配置为有意诱导的表示之间的运动误差。更高分辨率的图像，从所述多个，较低的分辨率表示通过使用超分辨率算法估计：如图像去马赛克和增强（“IDE”），一个凸集投影（“POCS”），最大似然（“ML”）或最大A后验概率（“MAP”）基于算法。

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