计算机应用 ›› 2014, Vol. 34 ›› Issue (12): 3549-3553.

• 虚拟现实与数字媒体 • 上一篇    下一篇

综合颜色和形状特征聚类的图像检索

张永库1,2,李云峰2,孙劲光2   

  1. 1.
    2. 辽宁工程技术大学 电子与信息工程学院, 辽宁 葫芦岛 125105
  • 收稿日期:2014-05-22 修回日期:2014-07-11 出版日期:2014-12-01 发布日期:2014-12-31
  • 通讯作者: 李云峰
  • 作者简介:张永库(l972-),男,辽宁阜新人,副教授, 硕士,主要研究方向:图形图像处理、多媒体、数据处理、数据挖掘;李云峰(1989-),男,山东青岛人,硕士研究生,主要研究方向:图像检索、图形图像处理;孙劲光(1962-),女,河北邯郸人, 教授, 博士, CCF会员, 主要研究方向:图形图像处理、人脸识别、数据挖掘。
  • 基金资助:

    国家科技支撑计划项目

Image retrieval based on clustering according to color and shape features

ZHANG Yongku1,2,LI Yunfeng2,SUN Jingguang2   

  1. 1.
    2. College of Electronics and Information Engineering, Liaoning Technical University, Huludao Liaoning 125105, China
  • Received:2014-05-22 Revised:2014-07-11 Online:2014-12-01 Published:2014-12-31
  • Contact: LI Yunfeng

摘要:

为了提高图像检索的速度和准确率,通过分析各种聚类算法在图像检索中的缺点,提出了一种新的划分聚类的图像检索方法。首先对HSV模型非均匀量化,利用改进的颜色聚合向量方法提取图像的颜色特征;然后基于改进的Hu不变矩提取图像的全局形状特征;最后,综合颜色和形状特征对图像基于贡献度聚类并建立特征索引库。利用上述方法在Corel图像库中进行图像检索。实验结果表明,与改进的K-means算法的图像检索算法相比,提出算法的查准率和查全率均有较大提高。

Abstract:

In order to improve the speed and accuracy of image retrieval, the drawbacks of image retrieval based on a variety of clustering algorithms were analyzed, then a new partition clustering method for image retrieval was presented in this paper. First, based on the asymmetrical quantization of the color in HSV model, color feature of image was extracted by color coherence vectors. Then, global shape feature of image was extracted based on improved Hu invariant moment. Finally,images were clustered based on contribution according to color and shape features, and image feature index library was established. The methods described above were used for image retrieval based Corel image library. The experimental results show that compared with image retrieval algorithms based on improved K-means algorithms, precision ratio and recall ratio of the proposed algorithm are improved greatly.

中图分类号: