Title
Learning Context Flexible Attention Model For Long-Term Visual Place Recognition
Abstract
Identifying regions of interest in an image has long been of great importance in a wide range of tasks, including place recognition. In this letter, we propose a novel attention mechanism with flexible context, which can be incorporated into existing feed-forward network architecture to learn image representations for long-term place recognition. In particular, in order to focus on regions that contribute positively to place recognition, we introduce a multiscale context-flexible network to estimate the importance of each spatial region in the feature map. Our model is trained end-to-end for place recognition and can detect regions of interest of arbitrary shape. Extensive experiments have been conducted to verify the effectiveness of our approach and the results demonstrate that our model can achieve consistently better performance than the state of the art on standard benchmark datasets. Finally, we visualize the learned attention maps to generate insights into what attention the network has learned.
Year
DOI
Venue
2018
10.1109/LRA.2018.2859916
IEEE ROBOTICS AND AUTOMATION LETTERS
Keywords
Field
DocType
Localization, deep learning in robotics and automation, visual-based navigation
Robot localization,Network architecture,Attention model,Control engineering,Artificial intelligence,Engineering,Deep learning,Machine learning,Robotics,Feed forward
Journal
Volume
Issue
ISSN
3
4
2377-3766
Citations 
PageRank 
References 
5
0.39
0
Authors
5
Name
Order
Citations
PageRank
Zetao Chen1927.78
Lingqiao Liu259237.69
In-kyu Sa318618.55
zongyuan ge414927.83
Margarita Chli5128353.59