A robust algorithm for text region detection in natural scene images

被引:3
|
作者
Park, Jonghyun [1 ]
Lee, Gueesang [1 ]
机构
[1] Chonnam Natl Univ, Sch Elect & Comp Engn, Kwangju, Chonnam, South Korea
关键词
feature extraction; natural scene image; segmentation; text detection;
D O I
10.1109/CJECE.2008.4721628
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper, a new method for detecting text regions in natural scene images is presented. The proposed algorithm is based on the segmentation of objects; in a scene. followed by the identification of text objects by a support vector machine (SVM). First, to segment objects in the scene, the input image is separated into chromatic and achromatic regions according to the distribution of red. green and blue (RGB) elements, and different clustering algorithms are applied. Second, each object is transformed into the wavelet domain for multi-resolution analysis, and moment features of the wavelet coefficients are used in the SVM for the classification of text objects. The proposed approach provides robustness to non-uniform illumination by using different clustering algorithms; according to the characteristics of the colour components in the segmentation. Also, moment features, used for classification, are invariant to the size. direction, shape and other properties of texts. Experimental results demonstrate the effectiveness of this approach.
引用
收藏
页码:215 / 222
页数:8
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