We propose a novel visual tracking algorithm based on the representations from a discriminatively trained Convolutional Neural Network (CNN). Our algorithm pretrains a CNN using a large set of videos with tracking ground-truths to obtain a generic target representation. Our network is composed of shared layers and multiple branches of domain-specific layers, where domains correspond to individual training sequences and each branch is responsible for binary classification to identify target in each domain. We train each domain in the network iteratively to obtain generic target representations in the shared layers. When tracking a target in a new sequence, we construct a new network by combining the shared layers in the pretrained CNN with a new binary classification layer, which is updated online. Online tracking is performed by evaluating the candidate windows randomly sampled around the previous target state. The proposed algorithm illustrates outstanding performance in existing tracking benchmarks.

通过基于卷积神经网络的表示方式提出了新型的视觉跟踪算法，该算法使用大型跟踪数据集进行了CNN预训练，从而获得了通用物体表示信息，并通过领域特定的二分类器不断迭代训练来实现在线跟踪。实验结果表明，该算法在目前已有的跟踪基准数据集中性能表现卓越。

学习多领域卷积神经网络进行视觉跟踪