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1. 发明申请

WO1996036008A1 BACKGROUND CLEANING OF ELECTRONICALLY SCANNED IMAGES 审中-公开
标题翻译：背景调整用于电子扫描的图像
公开(公告)号：WO1996036008A1
公开(公告)日：1996-11-14
申请号：PCT/EP1995001747
申请日：1995-05-09
申请人： INTERNATIONAL BUSINESS MACHINES CORPORATION , BRUEGMANN, Winfried , SCHROEDER, Horst
发明人： INTERNATIONAL BUSINESS MACHINES CORPORATION
IPC分类号： G06K09/40
CPC分类号： G06K9/40 , G06K2209/01 , G06T7/11 , G06T7/194 , G06T2207/10008 , G06T2207/30176
摘要： A process is diclosed for separating foreground from background information in a document. In a first step, at least two images of the document are generated with different filtering factors. One of the images is filtered in such a way that it essentially cointains only foreground information or fragments thereof. This image is used as starting image for the subsequent image restoration. The other images represent reference images for restoring the document image. In a second step, the document image is restored so that as much foreground information as possible lost from the starting image is restored. For that purpose, starting image information is compared to and is completed with reference image information. Complementary information from the reference images is selected by means of an appropriate selection scheme, preferably by adjacent point observation. Individual areas with a determined size are placed both in the starting image and in each reference image around information-carrying points in the starting image. Information located in such areas in one of the reference images besides the information-carrying points is considered as new information and used to complete the starting image, or is stored together with starting image information. The image points whose information was eliminated by filtering from the original document represent image points with no information content.
摘要翻译：描述/介绍的是一种用于在模板分离的背景信息的前景信息的方法。在第一步骤，被滤波以便通过与每个不同的滤波模板，即基本上仅前景信息，或其片段，在其中存在所产生的至少两个图像是所述图像中的一个，并且这用作用于随后的图像恢复所述输出图像，设置的参考图像中的剩余图像为图像恢复。在第二步骤中，使被恢复的所述输出图像中丢失的最大数量的前景信息来执行所述图像恢复。由此，由所述原始图像的信息与至少一个基准图像的信息进行比较来实现的图像恢复，使得开始的原始图像的信息通过从所述输出图像中的至少一个参考图像信息中的信息来补充。从参考图像的附加信息的选择是通过使用合适的选择方案中，优选相邻的点观察进行。对于近点观察，无论是在输出图像和在各参照图像具有一定规模到这样的点（信息点），其具有在输出图像中的信息内容的各个区域被分别施加。信息，这是存在于除了在参考图片的各个对应区域的信息点，来补充在任一初始图像的信息或以其他方式与输出图像的信息一起存储。应当理解的是，这样的像素，其信息通过从原始模板过滤已被过滤掉不表示信息内容的像素。

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