资源论文Learned Contextual Feature Reweighting for Image Geo-Localization

Learned Contextual Feature Reweighting for Image Geo-Localization

2019-12-06 | |  62 |   38 |   0
Abstract We address the problem of large scale image geolocalization where the location of an image is estimated by identifying geo-tagged reference images depicting the same place. We propose a novel model for learning image representations that integrates context-aware feature reweighting in order to effectively focus on regions that positively contribute to geo-localization. In particular, we introduce a Contextual Reweighting Network (CRN) that predicts the importance of each region in the feature map based on the image context. Our model is learned end-to-end for the image geo-localization task, and requires no annotation other than image geo-tags for training. In experimental results, the proposed approach significantly outperforms the previous state-of-the-art on the standard geo-localization benchmark datasets.We also demonstrate that our CRN discovers task-relevant contexts without any additional supervision

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