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基于极坐标直方图的图像检索算法 被引量:2

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摘要 提出了一种新的基于极坐标直方图的轮廓形状描述与图像检索算法。提取轮廓中能够反映轮廓形状特征的尖点和均匀采样点;分别将两类特征点向轮廓质心引向量得到两个特征向量集;最后利用两个特征向量集得到的两类极坐标直方图构造目标形状描述符。实验结果表明,该算法不仅能够很好的描述相关形状的轮廓特征,而且其特征描述具有尺度、旋转、平移不变性,同时提高了图像检索的准确率和查全率。
作者 任璐
机构地区 皖西学院
出处 《数字技术与应用》 2012年第7期105-107,共3页 Digital Technology & Application
基金 2011SQRL149ZD安徽优秀人才基金重点项目
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参考文献10

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二级参考文献17

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