| 基于B样条曲线的GHPF轮廓跟踪算法 |
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| 引用本文： | 刘振涛,王朝英,刘卫群.基于B样条曲线的GHPF轮廓跟踪算法[J].测控技术,2011,30(12):20-24. |
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| 作者姓名： | 刘振涛 王朝英 刘卫群 |
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| 作者单位： | 1. 空军工程大学电讯工程学院,陕西西安,710077
2. 中国人民解放军63751部队技术室,陕西西安,710028 |
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| 基金项目： | 国家自然科学基金资助项目（60774091）；空军装备部基金资助项目（KJ09131） |
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| 摘 要： | 针对视觉跟踪中粒子滤波算法的建议性分布函数选择问题,提出一种目标轮廓跟踪的高斯厄米特粒子滤波算法(GHPF).该算法采用B样条曲线描述目标轮廓,建立目标运动模型.利用高斯厄米特滤波器产生建议性分布函数,通过实时融入最新的观测数据来逼近系统状态的后验概率,提高了滤波估计的精度.实验仿真结果验证了所提算法的有效性.
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| 关 键 词： | 视觉跟踪 B样条曲线 粒子滤波 高斯厄米特粒子滤波 |
GHPF Contour Tracking Algorithm Based on B-Spline Curve |
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| LIU Zhen-tao,WANG Zhao-ying,LIU Wei-qun.GHPF Contour Tracking Algorithm Based on B-Spline Curve[J].Measurement & Control Technology,2011,30(12):20-24. |
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| Authors: | LIU Zhen-tao WANG Zhao-ying LIU Wei-qun |
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| Affiliation: | LIU Zhen-tao1,WANG Zhao-ying1,LIU Wei-qun2(1.Institute of Telecommunication Engineering,Air Force Engineering University,Xi'an 710077,China,2.Technology Office,No.63751 Unit of PLA,Xi'an 710028,China) |
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| Abstract: | A novel target profile tracking algorithm based on Gauss-Hermite particle filter is proposed for the selection of proposal distribution function in particle filter algorithm of visual tracking.The algorithm describes the target contour by adopting B-spline curve to set up target moving models.The Gauss-Hermite filter is used for generating the proposal distribution function to approach the posteriori probability of system state by fusing the latest observations,and it improves the accuracy of filter estimation.The simulation experiment demonstrates the effectiveness of proposed algorithm. |
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| Keywords: | visual tracking B-spline curve particle filter Gauss-Hermite particle filter |
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