NetVLAD: CNN architecture for weakly supervised place recognition

Code

• github.com/Relja/netvlad
  Officialnone★ 0
• github.com/yxgeee/SFRS
  pytorch★ 277
• github.com/yxgeee/openibl
  pytorch★ 277
• github.com/MubarizZaffar/VPR-Bench
  none★ 148
• github.com/gmberton/geo_warp
  pytorch★ 66
• github.com/goodproj13/DenserNet
  pytorch★ 45
• github.com/YanLiqi/HAF
  pytorch★ 12
• github.com/Nanne/pytorch-NetVlad
  pytorch★ 0
• github.com/uzh-rpg/netvlad_tf_open
  tf★ 0
• github.com/chengricky/PanoramicScenePlaceRecognition
  pytorch★ 0

Abstract

We tackle the problem of large scale visual place recognition, where the task is to quickly and accurately recognize the location of a given query photograph. We present the following three principal contributions. First, we develop a convolutional neural network (CNN) architecture that is trainable in an end-to-end manner directly for the place recognition task. The main component of this architecture, NetVLAD, is a new generalized VLAD layer, inspired by the "Vector of Locally Aggregated Descriptors" image representation commonly used in image retrieval. The layer is readily pluggable into any CNN architecture and amenable to training via backpropagation. Second, we develop a training procedure, based on a new weakly supervised ranking loss, to learn parameters of the architecture in an end-to-end manner from images depicting the same places over time downloaded from Google Street View Time Machine. Finally, we show that the proposed architecture significantly outperforms non-learnt image representations and off-the-shelf CNN descriptors on two challenging place recognition benchmarks, and improves over current state-of-the-art compact image representations on standard image retrieval benchmarks.

Tasks

Benchmark Results

Reproductions