Title
Benchmarking Image Retrieval for Visual Localization
Abstract
Visual localization, i.e., camera pose estimation in a known scene, is a core component of technologies such as autonomous driving and augmented reality. State-of-the-art localization approaches often rely on image retrieval techniques for one of two tasks: (1) provide an approximate pose estimate or (2) determine which parts of the scene are potentially visible in a given query image. It is common practice to use state-of-the-art image retrieval algorithms for these tasks. These algorithms are often trained for the goal of retrieving the same landmark under a large range of viewpoint changes. However, robustness to viewpoint changes is not necessarily desirable in the context of visual localization. This paper focuses on understanding the role of image retrieval for multiple visual localization tasks. We introduce a benchmark setup and compare state-of-the-art retrieval representations on multiple datasets. We show that retrieval performance on classical landmark retrieval/recognition tasks correlates only for some but not all tasks to localization performance. This indicates a need for retrieval approaches specifically designed for localization tasks. Our benchmark and evaluation protocols are available at https://github.com/naver/kapture-localization.
Year
DOI
Venue
2020
10.1109/3DV50981.2020.00058
2020 International Conference on 3D Vision (3DV)
Keywords
DocType
ISSN
visual localization,image retrieval,image features,place recognition,landmark retrieval,benchmark,camera pose interpolation
Conference
2378-3826
ISBN
Citations 
PageRank 
978-1-7281-8129-5
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Noé Pion100.34
Martin Humenberger221715.74
Gabriela Csurka397285.08
Yohann Cabon411.36
Torsten Sattler570434.68