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A learning-based method to detect and segment text from scene images 被引量:3

A learning-based method to detect and segment text from scene images
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摘要 This paper proposes a learning-based method for text detection and text segmentation in natural scene images. First, the input image is decomposed into multiple connected-components (CCs) by Niblack clustering algorithm. Then all the CCs including text CCs and non-text CCs are verified on their text features by a 2-stage classification module, where most non-text CCs are discarded by an attentional cascade classifier and remaining CCs are further verified by an SVM. All the accepted CCs are output to result in text only binary image. Experiments with many images in different scenes showed satisfactory performance of our proposed method. This paper proposes a learning-based method for text detection and text segmentation in natural scene images. First, the input image is decomposed into multiple connected-components (CCs) by Niblack clustering algorithm. Then all the CCs including text CCs and non-text CCs are verified on their text features by a 2-stage classification module, where most non-text CCs are discarded by an attentional cascade classifier and remaining CCs are further verified by an SVM. All the accepted CCs are output to result in text only binary image. Experiments with many images in different scenes showed satisfactory performance of our proposed method.
出处 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2007年第4期568-574,共7页 浙江大学学报(英文版)A辑(应用物理与工程)
基金 Project supported by the OMRON and SJTU Collaborative Founda-tion under PVS project (2005.03~2005.10)
关键词 Text detection Text segmentation Text feature Attentional cascade 景象图 文字特征 文字检测 文字分割 学习算法
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参考文献10

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同被引文献6

  • 1Zang J,Kasturi R. Extraction of Text Objects in Video Documents: Recent Progress[C]. Proc of the 8th Interna- tional Conference on Pattern Recognition. New York: IEEE Computer Society, 2008 : 5-17.
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  • 4谢昭莉.彭琴.边缘图像连通区域标记的算法研究和SoPC实现[EB/OL].[2011-06-13].http://www.eeworld.com.cn/FPGA/2011/0708/article-2306.html.
  • 5程豪,黄磊,刘昌平,谭怒涛.基于笔画和Adaboost的两层视频文字定位算法[J].自动化学报,2008,34(10):1312-1318. 被引量:10
  • 6李念永,梁艳梅,张舒,杨立,常胜江.基于BP神经网络的复杂彩色图像文本定位[J].光子学报,2009,38(10):2712-2716. 被引量:3

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