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基于最短路径法的语义图像检索

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摘要 在语义层和底层特征之间的语义断层是网络图像语义检索中的难点。由于用户习惯使用文本表示检索意图,来自网络的图片一般带有文字,故利用文本构建图像语义层,将图像底层特征处理为HSV空间中的向量,通过同维处理使二者可进行相似度计算。语义层和图像底层之间相似性倒数作为边权值,问题转化为求有向无环图中最短路径;用改进的Dijkstra算法求该路径。实验表明检索精度较传统的颜色直方图检索有一定提高。
作者 邓剑勋
出处 《计算机光盘软件与应用》 2015年第1期3-4,共2页 Computer CD Software and Application
基金 中国博士后科学基金资助项目(项目编号:20070420711)
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