TopicGeo: An Efficient Unified Framework for Geolocation

Figure 1. The visual geolocation results of our TopicGeo, and typical retrieval and matching approaches: Earthloc [4], SelaVPR [29], and LoFTR [47]

. "Recall" represents retrieval results. The color-coded lines show matching correctness: red for higher-error matches, green for higher-precision ones. In various scenes, our method accurately retrieves the target base image containing the query image from the database, while establishing pixel-level correspondence between the smaller query and large-scale retrieved image.