关键词: 多媒体, 目标搜索, 多媒体内容描述接口, 逆波兰表示法

Abstract: In order to improve the querying ability of the multimedia on the mobile terminal, a new method about querying the multimedia, namely, the progressive goal searching based on contents was presented, and the technique of the querying stream was provided. Combining Multimedia Query Format (MQF) of media querying method with the unit of XML requesting snippet and the unit of the updating snippet can realize the querying of the media information by users step by step. First, the description of the correlative meta data was queried, then, the result was queried. Therefore, this method can reduce the querying data transfer and it is suitable for the low configuration and the limited channel mobile terminal to achieve the media information query.

Key words: multimedia, goal searching, MPEG-7, Reverse Polish Notation (RPN)