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《Journal of Zhejiang University(Engineering Science)》 2012-01
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Algorithm of planarize text on curved surface

LI Xiang1,YAN Xiao-lang1,JIANG Qing-xiao2(1.Institute of VLSI Design,Zhejiang University,Hangzhou 310027,China;2.China Disabled Persons Assistive Devices Center Electronic Information Technology Institute,Hangzhou 310012,China)  
In optical character recognition(OCR) works,the edge of book material can produce surface deformation,and these parts can be hard to recognize by software.An algorithm was proposed to solve the problem.The main purpose of the algorithm is to flatten the deformation text information.The mapping information between raw materials and the flattened materials was obtained through cutting the text into grid and fitting calculation of material deformation function of the curvature.Then the flattened information was regenerated.A new algorithm was proposed which can perform well but doesn't need too much calculation.The algorithm was tested and proved under different situations.The efficiency was greatly improved,and recognition rate was significantly increased compared with the raw materials.The algorithm does not require complicate device to gather data,and most existing scanned data can be used for correction process.
【Fund】: 中华人民共和国科技部科技型中小企业技术创新基金资助项目(07C26213301377)
【CateGory Index】: TP391.41
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