多媒体数据库查询 meaning in English

query to multimedia data base

Content - based retrieval has become the most active research problem in the field of multimedia information searches . in this paper , we first discusssed some key technologies of query and retrieval on multimedia database . then we focus on content - based retrieval
本文首先讨论了多媒体数据库查询检索的一些相关技术问题，然后重点讨论了基于内容的检索，并结合qbe （ querybyexample ）查询方法，设计了一个基于内容的多媒体查询语言。