光学学报, 2018, 38 (10): 1015002, 网络出版: 2019-05-09
稳健的双模型自适应切换实时跟踪算法 下载: 794次
Robust Real-Time Visual Tracking via Dual Model Adaptive Switching
机器视觉 目标跟踪 卷积神经网络 特征选择 相关滤波 模型切换 machine vision object tracking convolutional neural network feature selection correlation filter model switching
摘要
为提升卷积特征目标跟踪算法的实时性和稳健性,利用不同卷积层特征对不同目标表征能力不同的特性,提出双模型自适应切换的实时跟踪方法。该方法对选取的两个卷积层特征使用目标区域和跟踪搜索区域卷积特征的能量均值比来评估卷积特征,选择能量均值比大于给定阈值的卷积通道特征来训练两个相关滤波分类器,然后利用目标相关滤波响应图的峰旁比自适应切换两个相关滤波分类器来预测目标位置,最后采用稀疏模型更新策略来更新分类器。在标准数据集上进行算法测试,实验结果表明,本文算法平均距离精度为89.3%,接近连续卷积跟踪算法,平均跟踪速度为25.8 frams/s,是连续卷积跟踪算法的25倍,整体性能优于实验中的对比跟踪算法。
Abstract
In order to improve the real-time and robust performances of the convolutional features for visual tracking, a real-time tracking method of dual model adaptive switching is proposed based on the analysis of different convolution layer features for different object representation capabilities. This method utilizes the feature energy ratio of the object region and searches region to evaluate the features selected from two convolutional layers. The convolution channel whose energy ratio value is greater than the given threshold is selected to train two correlated filter classifiers. Consequently, the object position is predicted by switching correlation filter classifiers using the peak-to-sidelobe ratio of response map adaptively. Finally, the sparse model update strategy is applied to update the classifiers. The proposed algorithm is tested on the standard dataset. The experimental results show that the average distance accuracy of proposed algorithm is 89.3%, which is close to continuous convolution object tracking, and the average tracking speed is 25.8 frame/s, which is 25 times faster than the continuous convolution object tracking algorithm. The overall performance of the proposed algorithm outperforms other tracking methods contrasted in the experiment.
熊昌镇, 车满强, 王润玲, 卢颜. 稳健的双模型自适应切换实时跟踪算法[J]. 光学学报, 2018, 38(10): 1015002. Changzhen Xiong, Manqiang Che, Runling Wang, Yan Lu. Robust Real-Time Visual Tracking via Dual Model Adaptive Switching[J]. Acta Optica Sinica, 2018, 38(10): 1015002.