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边缘与灰度检测相结合的场景图像文本定位

DOI: 10.11834/jig.20131208

Keywords: 自然场景,文本定位,边缘检测,灰度检测

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Abstract:

自然场景图像中包含大量的图像和文本信息,其文本字符能够提供重要的语义信息。利用计算机自动检测并识别自然场景中的文本信息,是模式识别和文字信息处理领域重要的研究内容。提出一种有效的从场景图像中定位文本的方法,其原理为:首先基于边缘检测进行文本区域粗定位,对定位到的区域进行灰度检测,来确定文本域中的字符位置,然后对所得到的检测区域进行筛选,去掉噪声区域,获取到目标文本域。实验结果表明,本文方法对字体的大小、样式、颜色,以及排布方向具有较强的鲁棒性,能够准确定位并提取自然场景下的文本信息。

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