李丽惠, 黄育明, 丁灿, 喻飞, 陈颖频. 卷积视角下抗遮挡相关滤波跟踪方法[J]. 微电子学与计算机, 2022, 39(8): 63-70. DOI: 10.19304/J.ISSN1000-7180.2022.0081
引用本文: 李丽惠, 黄育明, 丁灿, 喻飞, 陈颖频. 卷积视角下抗遮挡相关滤波跟踪方法[J]. 微电子学与计算机, 2022, 39(8): 63-70. DOI: 10.19304/J.ISSN1000-7180.2022.0081
LI Lihui, HUANG Yuming, DING Can, YU Fei, CHEN Yingpin. Anti-occlusion correlation filter tracking method from a convolution perspective[J]. Microelectronics & Computer, 2022, 39(8): 63-70. DOI: 10.19304/J.ISSN1000-7180.2022.0081
Citation: LI Lihui, HUANG Yuming, DING Can, YU Fei, CHEN Yingpin. Anti-occlusion correlation filter tracking method from a convolution perspective[J]. Microelectronics & Computer, 2022, 39(8): 63-70. DOI: 10.19304/J.ISSN1000-7180.2022.0081

卷积视角下抗遮挡相关滤波跟踪方法

Anti-occlusion correlation filter tracking method from a convolution perspective

  • 摘要: 针对当前相关滤波跟踪算法在目标进行旋转、快速运动和被遮挡时,易出现跟踪漂移甚至跟丢的问题,提出一种卷积视角下抗遮挡相关滤波跟踪方法.该方法在相关滤波算法框架的基础上,利用上下文感知方法增加背景信息,引入多模态历史池更新策略增强抗遮挡的跟踪性能.首先,设计出一套基于卷积视角的公式推导体系,巧妙地引入卷积定理在频域上求解滤波器,相比于现有文献中循环矩阵对角化的滤波器求解方法,该推导方法易于理解.然后,通过引入上下文相关信息,设计合理的能量泛函压制背景区域的响应值,达到更加稳健跟踪目标的目的.最后,建立历史多模态目标池,一旦相关响应最大的样本与历史模板池各多模态模板相似度低于人为设置阈值,则认定该帧出现遮挡,不进行模板池、外观模型、滤波器的更新,有效解决遮挡挑战下跟踪漂移的问题.将所提方法在OTB2015上进行测试,实验表明在目标旋转、快速运动、被遮挡等条件下,所提方法在保证准确跟踪的同时保持较高的速度,优于实验所提的其他方法.

     

    Abstract: Because the current correlation filter tracking algorithm is prone to tracking drift or even loss when the target rotates, moves fast, and is occluded, an anti-occlusion correlation filter tracking method is proposed under a convoluted perspective. Based on the framework of the correlation filtering algorithm, the method uses context-aware methods to increase background information. It introduces a multimodal history pool update strategy to enhance the anti-occlusion tracking performance. First, a formula derivation system based on the convolution perspective is designed, and the convoluted theorem is subtly introduced to solve the filter in the frequency domain. Compared with the filter solution method of circulant matrix diagonalization in the existing literature, the method is easy to understand. Then, by submitting context-related information, reasonable energy functional is designed to suppress the response value of the background region to achieve the purpose of tracking the target more robustly. Finally, a historical multimodal target pool is established. When the similarity between the sample with a significant relevant response and each multimodal template in the historical template pool is lower than the artificially set threshold, it is determined that the frame is occluded. In this situation, the template pool, appearance model and filter should not be updated, effectively solving the challenge of occlusion and track drift issues. The proposed method was tested on OTB2015. Experiments show that under the conditions of target rotation, fast movement, occlusion, etc., the proposed method can ensure accurate tracking while maintaining a high speed, which is better than other methods proposed in the experiment.

     

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