Title
Warp-Refine Propagation - Semi-Supervised Auto-labeling via Cycle-consistency.
Abstract
Deep learning models for semantic segmentation rely on expensive, large-scale, manually annotated datasets. Labelling is a tedious process that can take hours per image. Automatically annotating video sequences by propagating sparsely labeled frames through time is a more scalable alternative. In this work, we propose a novel label propagation method, termed Warp-Refine Propagation, that combines semantic cues with geometric cues to efficiently auto-label videos. Our method learns to refine geometrically-warped labels and infuse them with learned semantic priors in a semi-supervised setting by leveraging cycle consistency across time. We quantitatively show that our method improves label-propagation by a noteworthy margin of 13.1 mIoU on the ApolloScape dataset. Furthermore, by training with the auto-labelled frames, we achieve competitive results on three semantic-segmentation benchmarks, improving the state-of-the-art by a large margin of 1.8 and 3.61 mIoU on NYU-V2 and KITTI, while matching the current best results on Cityscapes.
Year
DOI
Venue
2021
10.1109/ICCV48922.2021.01521
ICCV
DocType
Citations 
PageRank 
Conference
0
0.34
References 
Authors
0
8
Name
Order
Citations
PageRank
Aditya Ganeshan111.02
Alexis Vallet200.68
Yasunori Kudo300.68
Shin-ichi Maeda4268.11
Tommi Kerola5354.13
Rares Ambrus67611.59
Dennis Park700.34
Adrien Gaidon800.34