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《Video Engineering》 2007-10
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Efficient Approach of Video Text Retrieval

TIAN Po-huang,LI Bi-cheng,PENG Tian-qiang (Department of Information Science,School of Information Engineering,Information Engineering University,Zhengzhou 450002,China)  
According to characters that short vertical and horizontal edges mix together in text area while edges in background are thick and long,a segmentation algorithm for segmenting text from video frames is presented. The method gets potential text areas using relative entropy-based threshold and expansion in mathematical morphology. The gained varied gray-scale histograms of potential areas are involved to refine the text areas. Experiments on different video segmentations prove the simplicity,high-accuracy,and robustness of this method.
【CateGory Index】: TP391.41
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【Citations】
Chinese Journal Full-text Database 4 Hits
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