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《Journal of Hefei University of Technology(Natural Science)》 2005-09
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Method for text detection and extraction in images based on fuzzy techniques

ZHANG You-sheng,WANG Rong-gui,HU Min(School of Computer and Information,Hefei University of Technology,Hefei 230009,China)  
Content-based indexing and retrieval is an important method for effectively retrieving and browsing the huge amount of digital video information,and it is one of popular research issues nowadays.In this paper,a new method for text detection and extraction is presented,the characteristic of which is the application of fuzzy techniques to recognizing the text mapping features in subimage variant gray-scale histogram(VGHs) and implementing the text area detection and location.The properties of text mapping features in subimage VGHs are analyzed first.Then the key techniques and their related algorithms are discussed in detail,including how to choose the parameter λ effectively,how to detect features in VGHs of a subimage quickly and how to apply the fuzzy techniques to recognizing effectively the text mapping features in VGHs.In the end,some experimental results are given showing the validity of the algorithms discussed above.
【Fund】: 安徽省自然科学基金资助项目(03042207)
【CateGory Index】: TP391.1;
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