CAJ | 학술논문

对粒子滤波理论及其实现方法进行了研究.通过模拟实验验证了其优于卡尔曼跟踪的性能,并结合基于双正交小波的边缘形心提取方法和粒子滤波跟踪方法,构建了其跟踪框架.通过粒子数和系统状态转移方程的恰当选择,实现了云层背景下对背景简单的点目标和存在遮挡和旋转变化情况下的大目标进行跟踪.最后通过实验分析了粒子数目和状态方程的选取对跟踪精度的影响.实验证明,结合鲁棒性的小波检测方法和具有"多峰"描述的粒子滤波算法构造成的跟踪器,在运动目标存在局部遮挡和旋转变化等情况下能够实现稳定的目标跟踪.
대입자려파이론급기실현방법진행료연구.통과모의실험험증료기우우잡이만근종적성능,병결합기우쌍정교소파적변연형심제취방법화입자려파근종방법,구건료기근종광가.통과입자수화계통상태전이방정적흡당선택,실현료운층배경하대배경간단적점목표화존재차당화선전변화정황하적대목표진행근종.최후통과실험분석료입자수목화상태방정적선취대근종정도적영향.실험증명,결합로봉성적소파검측방법화구유"다봉"묘술적입자려파산법구조성적근종기,재운동목표존재국부차당화선전변화등정황하능구실현은정적목표근종.
Particle filter realize recursive Bayesian filter via Monte Carlo simulation. The method is suitable for any mon-linear system that could be represented with state model. The theory and method of particle filter are studied in the paper, through simulate experiment validate its capability excel to kalman tracking. A method of biorthogonal wavelet edge extraction combining particle filter is presented, and making up its frame of tracking. Through selecting state equation of system and particle number, which realize dot target in simple background and target in shelter complicated tracking used algorithm. At last the problems have analyzed whether the number of particles and state equation affects the tracking accuracy. Experiment validate, the tracker with combining robust wavelet inspect method and having many apex descriptive particle filter algorithm, which can realize steady target tracking in moving target exist local shelter.