摘要： 构造了一个基于压缩域行为描述子的检索模型CMRS。在CMRS中,针对特征提取部分提出了一种基于宏块连接跟踪机制的运动轨迹提取算法和一种参数行为估计算法,并且对参数化运动原始的匹配准则(PSSM)加以改进,构造了新的基于速度的相似匹配准则。最后在检索模型的实现阶段,实现了模型的总体框架。

关键词: MPEG-7, 运动轨迹, 运动动作, 参数化运动, 摄像机运动, 视频检索

Abstract: This paper presents MPEG-7 motion descriptors based video retrieval system in compressed domain (CMRS).In this system,several descriptors are extracted such as motion trajectory,motion activity,parametric motion and camera motion.Based on the extraction algorithm of these motion descriptors,it develops corresponding similarity measures;in particular improves the original measure of parametric motion (PSSM) to construct a new velocity-based method.At last the whole framework of CMRS is implemented.

中图分类号: 

• TP391.3