Object Tracking using Spatio-Temporal Networks for Future Prediction Location

Yuan Liu, Ruoteng Li, Yu Cheng, Robby T. Tan, Xiubao Sui ;

We introduce an object tracking algorithm that predicts the future locations of the target object and assists the tracker to handle object occlusion. Given a few frames of an object that are extracted from a complete input sequence, we aim to predict the object’s location in the future frames. To facilitate the future prediction ability, we follow three key observations: 1) object motion trajectory is affected significantly by camera motion; 2) the past trajectory of an object can act as a salient cue to estimate the object motion in the spatial domain; 3) previous frames contain the surroundings and appearance of the target object, which is useful for predicting the target object’s future locations. We incorporate these three observations into our method that employs a multi-stream convolutional-LSTM network. By combining the heatmap scores from our tracker (that utilises appearance inference) and the locations of the target object from our trajectory inference, we predict the final target’s location in each frame. Comprehensive evaluations show that our method sets new state-of-the-art performance on a few commonly used tracking benchmarks."