Li Daqun, Xu Tingfa, Chen Shuoyang, Zhang Jizhou, Jiang Shenwang
School of Optoelectronics, Image Engineering & Video Technology Lab, Beijing Institute of Technology, Beijing 100081, China.
Key Laboratory of Photoelectronic Imaging Technology and System, Ministry of Education of China, Beijing 100081, China.
Sensors (Basel). 2016 Sep 8;16(9):1449. doi: 10.3390/s16091449.
This paper proposes a novel tracking framework with adaptive features and constrained labels (AFCL) to handle illumination variation, occlusion and appearance changes caused by the variation of positions. The novel ensemble classifier, including the Forward-Backward error and the location constraint is applied, to get the precise coordinates of the promising bounding boxes. The Forward-Backward error can enhance the adaptation and accuracy of the binary features, whereas the location constraint can overcome the label noise to a certain degree. We use the combiner which can evaluate the online templates and the outputs of the classifier to accommodate the complex situation. Evaluation of the widely used tracking benchmark shows that the proposed framework can significantly improve the tracking accuracy, and thus reduce the processing time. The proposed framework has been tested and implemented on the embedded system using TMS320C6416 and Cyclone Ⅲ kernel processors. The outputs show that achievable and satisfying results can be obtained.
本文提出了一种具有自适应特征和约束标签的新型跟踪框架(AFCL),以处理由位置变化引起的光照变化、遮挡和外观变化。应用了包括前向-后向误差和位置约束的新型集成分类器,以获得有前景的边界框的精确坐标。前向-后向误差可以提高二元特征的适应性和准确性,而位置约束可以在一定程度上克服标签噪声。我们使用可以评估在线模板和分类器输出的组合器来适应复杂情况。对广泛使用的跟踪基准的评估表明,所提出的框架可以显著提高跟踪精度,从而减少处理时间。所提出的框架已经在使用TMS320C6416和CycloneⅢ内核处理器的嵌入式系统上进行了测试和实现。结果表明可以获得可实现且令人满意的结果。