Fast Online Object Tracking and Segmentation: A Unifying Approach

In this paper we illustrate how to perform both visual object tracking and semi-supervised video object segmentation, in real-time, with a single simple approach. Our method, dubbed SiamMask, improves the offline training procedure of popular fully-convolutional Siamese approaches for object tracking by augmenting their loss with a binary segmentation task. Once trained, SiamMask solely relies on a single bounding box initialisation and operates online, producing class-agnostic object segmentation masks and rotated bounding boxes at 55 frames per second. Despite its simplicity, versatility and fast speed, our strategy allows us to establish a new state of the art among real-time trackers on VOT-2018, while at the same time demonstrating competitive performance and the best speed for the semi-supervised video object segmentation task on DAVIS-2016 and DAVIS-2017. The project website is http://www.robots.ox.ac.uk/~qwang/SiamMask.

PDF Abstract CVPR 2019 PDF CVPR 2019 Abstract
Task Dataset Model Metric Name Metric Value Global Rank Result Benchmark
Semi-Supervised Video Object Segmentation DAVIS 2016 SiamMask Jaccard (Mean) 71.7 # 70
Jaccard (Recall) 86.8 # 27
Jaccard (Decay) 3.0 # 32
F-measure (Mean) 67.8 # 70
F-measure (Recall) 79.8 # 27
F-measure (Decay) 2.1 # 33
J&F 69.75 # 70
Semi-Supervised Video Object Segmentation DAVIS 2017 (test-dev) SiamMask J&F 43.2 # 57
Jaccard (Mean) 40.6 # 57
Jaccard (Recall) 44.5 # 20
Jaccard (Decay) 21.9 # 13
F-measure (Mean) 45.8 # 54
F-measure (Recall) 45.3 # 21
F-measure (Decay) 22.4 # 15
Semi-Supervised Video Object Segmentation DAVIS 2017 (val) SiamMask Jaccard (Mean) 54.3 # 73
Jaccard (Recall) 62.8 # 23
Jaccard (Decay) 19.3 # 17
F-measure (Mean) 58.5 # 74
F-measure (Recall) 67.5 # 23
F-measure (Decay) 20.9 # 15
J&F 56.4 # 75
Visual Object Tracking VOT2017/18 SiamMask Expected Average Overlap (EAO) 0.380 # 8
Visual Object Tracking YouTube-VOS 2018 SiamMask Jaccard (Seen) 54.3 # 4
O (Average of Measures) 52.8 # 3
Jaccard (Unseen) 45.1 # 5
F-Measure (Seen) 58.2 # 5
F-Measure (Unseen) 47.7 # 5

Methods