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MART: Motion-Aware Recurrent Neural Network for Robust Visual Tracking
We introduce MART, Motion-Aware Recurrent neural network (MA-RNN) for Tracking, by modeling robust long-term spatial-temporal representation. In particular, we propose a simple, yet effective context-aware displacement attention (CADA) module to capture target motion in videos. By seamlessly integrating CADA into RNN, the proposed MA-RNN can spatially align and aggregate temporal information guided by motion from frame to frame, leading to more effective representation that benefits a tracker from motion when handling occlusion, deformation, viewpoint change etc. Moreover, to deal with scale change, we present a monotonic bounding box regression (mBBR) approach that iteratively predicts regression offsets for target object under the guidance of intersection-over-union (IoU) score, guaranteeing non-decreasing accuracy. In extensive experiments on five benchmarks, including GOT-10k, LaSOT, TC-128, OTB-15 and VOT-19, our tracker MART consistently achieves state-of-the-art results and runs in real-time.