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专利名称：Methods and systems for processing of
images of mathematical expressions
发明人：Dmitry Isupov,Anton Masalovitch申请号：US14679219申请日：20150406公开号：US09858506B2公开日：20180102
专利附图：
摘要：The current document is directed to methods and systems that convertdocument images containing mathematical expression into corresponding electronicdocuments. In one implementation, an image or sub-image containing a mathematical
expression is recursively partitioned into blocks separated by white-space stripes.Horizontal and vertical partitioning are alternately and recursively applied to the imageor sub-image containing a mathematical expression until the lowest-level blocksobtained by partitioning correspond to symbols recognizable by character-recognitionmethods. Graph-based analysis of the recognized symbols provides a basis for encodingan equivalent representation of the mathematical expression contained in the image orsub-image.
申请人：ABBYY Development LLC
地址：Moscow RU
国籍：RU
代理机构：Lowenstein Sandler LLP
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