Abstract
Effective integration of local and global contextual information is crucial for dense labeling problems. Most existing
methods based on an encoder-decoder architecture simply
concatenate features from earlier layers to obtain higherfrequency details in the refinement stages. However, there
are limits to the quality of refinement possible if ambiguous
information is passed forward. In this paper we propose
Gated Feedback Refinement Network (G-FRNet), an end-toend deep learning framework for dense labeling tasks that
addresses this limitation of existing methods. Initially, GFRNet makes a coarse prediction and then it progressively
refines the details by efficiently integrating local and global
contextual information during the refinement stages. We
introduce gate units that control the information passed forward in order to filter out ambiguity. Experiments on three
challenging dense labeling datasets (CamVid, PASCAL VOC
2012, and Horse-Cow Parsing) show the effectiveness of
our method. Our proposed approach achieves state-of-theart results on the CamVid and Horse-Cow Parsing datasets,
and produces competitive results on the PASCAL VOC 2012
dataset.