P2P网络中的一种相似图像检索方法  

Similar image retrieving method in P2 P networks

作　　者：董建设[1,2] 刘鹏[3] 袁占亭[1] 

机构地区：[1]兰州理工大学计算机与通信学院,甘肃兰州730050 [2]天津职业技术师范大学信息技术工程学院,天津300222 [3]解放军理工大学指挥自动化学院,江苏南京210007

出　　处：《解放军理工大学学报（自然科学版）》2010年第5期483-488,共6页Journal of PLA University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(30670529)

摘　　要：为了实现在P2P网络中进行图像资源发布和相似图像检索,提出了一种资源发布和查找策略。根据图像内容生成指纹向量,将该指纹作为图像在P2P网络中发布的基础,实现将相似图像发布到同一节点或相邻节点,进而实现高效的分布式相似图像查询。该算法在分布式哈希表DHT(distributed Hash table)路由基础之上构建,适用于各种以DHT为基础的结构化P2P系统。Structured Peer-to-Peer（P2P） technique offers wide-area,scalable and efficient lookup services to distributed resources.To launch a retrieve for a given resource in structured P2P systems,the unique identifier of the resource must be known in advance.Hence it is difficult to retrieve similar resources in structured P2P systems.To solve this problem,a novel routing scheme was proposed for image publishing and retrieving.By this scheme,the fingerprint which was taken as the base of image publishing in P2P system was generated firstly according to the content of the image.Similar images were published to a unique node or contiguous nodes and then they could be retrieved efficiently based on range queries.This scheme,constructed based on the routing scheme of distributed hash table（DHT）,is suitable for various structured P2P（peer-to-peer） systems.

关 键 词：图像指纹 相似图像检索 聚集存储 P2P网络 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]