Text extraction in digital video plays important role in content based video indexing.

从数字视频中提取文字对基于内容的视频索引的建立具有重要意义。

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Since the text information is important in the video stream and video indexing, this paper provides an algorithm based on multiple character of the text to locate text block in video stream.

针对视频中文本信息在视频序列和视频索引中的重要性，本文提出了一种基于文字混合特征的文本定位算法。

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