Title
Instance Segmentation By Jointly Optimizing Spatial Embeddings And Clustering Bandwidth
Abstract
Current state-of-the-art instance segmentation methods are not suited for real-time applications like autonomous driving, which require fast execution times at high accuracy. Although the currently dominant proposal-based methods have high accuracy, they are slow and generate masks at a fixed and low resolution. Proposal-free methods, by contrast, can generate masks at high resolution and are often faster, but fail to reach the same accuracy as the proposal-based methods. In this work we propose a new clustering loss function for proposal-free instance segmentation. The loss function pulls the spatial embeddings of pixels belonging to the same instance together and jointly learns an instance-specific clustering bandwidth, maximizing the intersection-over-union of the resulting instance mask. When combined with a fast architecture, the network can perform instance segmentation in real-time while maintaining a high accuracy. We evaluate our method on the challenging Cityscapes benchmark and achieve top results (5% improvement over Mask R-CNN) at more than 10 fps on 2MP images.(1)
Year
DOI
Venue
2019
10.1109/CVPR.2019.00904
2019 IEEE/CVF CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION (CVPR 2019)
DocType
Volume
ISSN
Conference
abs/1906.11109
1063-6919
Citations 
PageRank 
References 
11
0.48
0
Authors
4
Name
Order
Citations
PageRank
Davy Neven1322.11
Bert De Brabandere2543.89
Marc Proesmans327734.37
Luc Van Gool4275661819.51