摘要
提出一种有效的基于MPEG-7边缘直方图描述符的图像检索算法.该图像内容描述符由4种块边缘模式的游程编码直方图构成.大量的实验结果证明,与现行的类似算法相比,本文提出的算法在进行图像检索时,具有更高的平均查准率和查全率,且计算量小,便于实时处理.
In this paper, we propose an effective image retrieval algorithm based on the edge histogram descriptor （EHD） of MPEG-7. This content descriptor is constructed by an edge-block histogram with four patterns of horizontal edge, vertical edge, non-directional edge and no-edge. Extensive experiments support that the proposed content descriptor is effective in representing and describing image content. In comparison with comparable existing techniques, the proposed algorithm achieves superior performances in terms of retrieval precision and recall rate.
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第5期149-153,共5页
Journal of Southwest University(Natural Science Edition)
基金
重庆市自然科学基金资助项目(CSTC-2006BB2309)
