摘要
针对视觉跟踪中运动目标鲁棒性跟踪问题,结合高斯核函数和卷积神经网络(CNN),提出一种无需训练的卷积神经网络提取深度特征的视觉跟踪算法.首先,对初始图像进行归一化处理并聚类提取目标信息,结合跟踪过程中目标信息共同作为卷积网络结构中的各阶滤波器;其次,通过高斯核函数来提高卷积运算速度,提取目标简单抽象特征;最后,通过叠加简单层的卷积结果得到目标的深层次表达,并结合粒子滤波跟踪框架实现跟踪.结果表明:简化后的卷积网络结构能够有效地应对低分辨率、目标遮挡与形变等场景,提高复杂背景下的跟踪效率.
In view of the robustness tracking of moving targets in visual tracking,a vision tracking algorithm is proposed in this paper,which combines Gauss kernel function and convolution neural network(CNN),to extract the depth feature of the convolution neural network without training.Firstly,the initial image is normalized and the target information is extracted by clustering,and the target information in the tracking process is combined as the order filter in the convolution network structure.The Gauss kernel function is used to improve the convolution operation speed,extract the simple abstract feature of the target,and then superimpose the convolution results of the simple layer to get the depth of the target.Finally,we combine particle filter tracking framework to achieve tracking.The results show that the simplified convolution network structure can effectively cope with low resolution,target occlusion and deformation and so on,and improve the tracking efficiency in complex background.
引文
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