Fig. 1. Framework of online adaptive siamese network based on attention mechanism

Fig. 2. Cropped (t-1)th frame

Fig. 3. Spatial attention module

Fig. 4. Channel attention module

Fig. 5. Plots of accuracy and average success rate on OTB50 dataset. (a) Plot of accuracy; (b) plot of average success rate

Fig. 6. Plots of accuracy and average success rate on OTB100 dataset. (a) Plot of accuracy; (b) plot of average success rate

Fig. 7. Average success rates of similar background attributes on OTB100 dataset

Fig. 8. Average success rates of deformation properties on OTB100 dataset

Fig. 9. Expected average overlap rates on VOT2016 dataset

Fig. 10. Qualitative evaluation of different algorithms on seven challenging video sequences