传统的检索技术，如基于文本的图像检索，已不能完全满足人们的要求。
The traditional image retrieval technologies such as text-based method couldn't satisfy people's demand.
其中基于文本的图像检索方法利用人工对图像进行标注作为检索特征，进行的是精确匹配；
The text-based image retrieval technique utilizes the manual image annotation as image character for retrieval and is a precise matching.
针对文本图像自动处理中对图标图形识别检索的应用需求，提出一种基于投影特征的图标图形识别检索方法。
To fulfill the application requirement to retrieve logos in automatic processing document image, a logo recognition and retrieval algorithm based on projective features was presented.
针对文本图像自动处理中对图标图形识别检索的应用需求，提出一种基于投影特征的图标图形识别检索方法。
To fulfill the application requirement to retrieve logos in automatic processing document image, a logo recognition and retrieval algorithm based on projective features was presented.
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