In accordance with complicated object movement and changeable object environment
a multi-pattern fusion algorithm for target tracking is presented. Mean-shift and particle filter algorithms widely applied to target tracking are selected to get tentative locations and Weighted Composite Reference Function (WCRF) is adopted to establish reference model. Then
the distance difference of the tentative locations and the reference model is considered as a criterion to find correct location. Finally
the algorithm updates the reference model according to the distance between reference model and target model in current frame. The experimental simulation results show that the average tracking error of the proposed algorithm is reduced by 50% as compared with that of single target tracking method. If the reference model is updated incorrectly
the probability to find the correct location in the next frame is 67%. After updating the reference model three times
the influence on object tracking is less than 10%
which effectively reduces the tracking error and instability for model updating.
关键词
Keywords
references
朱明,鲁剑锋,胡硕. 采用DSP的电视测量跟踪器的研制[J]. 光学 精密工程,2005,13(增):232-235. ZHU M, LU J F, HU SH. Development of TV measuring and tracking system by using DSP[J]. Opt. Precision Eng., 2005,13(Supp.):232-235. (in Chinese)[2] 赵鹏,沈庭芝,单宝堂. 一种基于粒子滤波的无人机电视导引系统目标跟踪算法[J]. 光学 精密工程,2008,16(1):134-140. ZHAO P, SHEN T ZH, SHAN B T. An object tracking algorithm for TV guiding system of UAV based on particle filter[J]. Opt. Precision Eng., 2008,16(1):134-140. (in Chinese)[3] LAST M, KLEIN Y, KANDEL A. Knowledge discovery in time series databases [J]. IEEE Trans. on system, Man, and Cybernetics-part , 2001,31(1):160-169.[4] AGUI T, ISHIHARA T, NAGAHASHI H,et al.. Contour tracking and synthesis in image sequences[J]. SPIE, 1995, 2501:834-845.[5] 刘兴法,马佳光. 用于三轴光电跟踪系统的神经网络误差修正法[J]. 光学 精密工程, 2007,15(9):1311-1316. LIU X F, MA J G. Neural network error modification method for three-axis photoelectric tracking system [J]. Opt. Precision Eng., 2007,15(9):1311-1316.(in Chinese)[6] JULIER S J, UHLMANN J U. Unscented filtering and nonlinear estimation[J]. Proceeding of IEEE, 2004,192(3):401-422. [7] KRUGER V, SOMMER G. Gabor wavelet networks for object representation . Proc. Int. Dagstuhl 2000 Work-shop,2000:309-316. [8] FERIS R S, KRUGER V. Wavelet subspace method for real-time face tracking[J]. J. Real-time Imaging, 2004,10(6):339-350. [9] COMANICIU D, RAMESH V, MEER P. Kernel-based object tracking[J]. IEEE Trans. on Pattern Analysis and Machine Intelligence, 2003,25(5):564-575.[10] COLLINS R T. Mean-Shift blob tracking through scale space . IEEE Int'l Conf. on Computer Vision and Pattern Recognition, Vol 2. Baltimore: Victor Graphics, 2003:234-240.[11] NUMMIARO K,KOLLER-MEIER E,VANGOOL L. Object tracking with an adaptive color-based particle filter . Symposium for Patter Recognition of the DAGM, 2002:353-360.[12] ARULAMPALAM S, MASKELL S, GORDON N,et al.. A tutorial on particle filters for on-line nonlinear/non-Gaussian Bayesian tracking[J]. IEEE Trans. on Sign al Processing, 2002,50(2):174-188. [13] 孟勃,朱明. 粒子滤波算法在非线性目标跟踪系统中的应用[J]. 光学 精密工程,2007,15(9):1421-1426. MENG B, ZHU M. Nonlinear object tracking using particle filter[J]. Opt. Precision Eng.,2007,15(9):1421-1426. (in Chinese)[14] DAWOUD A, ALAM M S, BAL A, et al.. Decision fusion algorithm for target tracking in infrared imagery[J]. Optical Engineering, 2005,44(2):026401-1026408.