一种基于HMM模型的弱小点目标的检测算法  

HMM Model-Based Detection Algorithm of Weak Point Targets Under Complicated Background

作　　者：李士民[1] 郭立[1] 朱俊株[1] 

机构地区：[1]中国科学技术大学,合肥230026

出　　处：《火控雷达技术》2003年第1期31-36,43,共7页Fire Control Radar Technology

摘　　要：讨论复杂背景、强干扰条件下移动平台下弱小目标的检测 ,提出一种基于隐 Markov模型的快速检测算法。该算法通过计算摄像机视场的运动 ,消除背景的干扰 ,通过计算模型中的目标转移概率和似然函数 ,确定点目标的运动轨迹。This paper discusses the weak point target detection from moving platform under complicated backgrounds and strong interferences, and proposes a novel algorithm based on HMM model. This algorithm can reject background interferences by computation of the camera's movement, and can obtain the track of the weak target by computation of the target's transition probability and likelihood function. Experiments show that this algorithm is efficient.

关 键 词：HMM模型 算法 点目标检测 维特比算法 隐马尔可夫模型 恒虚警率 

分 类 号：TN957.52[电子电信—信号与信息处理]