基于空间关系的手绘草图检索  

Sketch Retrieval Based on Topological Relations

作　　者：李彬[1] 梁爽[1] 孙正兴[1] 

机构地区：[1]南京大学计算机软件新技术国家重点实验室,南京210093

出　　处：《计算机科学》2005年第12期227-231,共5页Computer Science

基　　金：国家自然科学基金(编号:69903006;60373065);教育部"新世纪优秀人才支持计划"资助

摘　　要：手绘草图是人类最自然的人机交互方式,在普适计算模式下手绘草图将得到越来越多的应用,手绘草图的检索也成为一个新的课题。本文提出一种高效的草图检索方法,该方法以独立于用户绘制习惯的手绘草图统一表示为基础,以手绘草图空间关系为检索相似度匹配特征,并采用特征点调整的相关反馈机制优化检索结果。实验表明本文提出的方法具有很好的检索效果。Sketching is a natural way for recording and conveying ideas. Along with more and more sketches created in ubiquitous computing, sketch retrieval has become a new issues. This paper presented an effective approach for sketch retrieval to improve the retrieval performance. The topological relationship of sketch constitutes is used as the feature of similarity matching of the sketches, based on a user-independent sketch representation. Relevance feedback was also introduced to adjustment to refine the retrieval results by adjustment of feature point. Experiments prove the effectiveness and efficiency of the method.

关 键 词：草图检索 空间关系 特征向量 相关反馈 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术] G354.4[自动化与计算机技术—计算机科学与技术]