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US07873215B2 Precise identification of text pixels from scanned document images 有权
从扫描的文档图像中精确识别文本像素

Precise identification of text pixels from scanned document images
Abstract:
A system or method for identifying text in a document. A group of connected components is created. A plurality of characteristics of different types is calculated for each connected component. Statistics are computed which describe the group of characteristics. Outlier components are identified as connected components whose computed characteristics are outside a statistical range. The outlier components are removed from the group of connected components. Text pixels are identified by segmenting pixels in the group of connected components into a group of text pixels and a group of background pixels.
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