CrossLoc: Scalable Aerial Localization Assisted by Multimodal Synthetic Data

Maria J. Danford

As satellite positioning is vulnerable in the reception of signals, substitute methods are in need for complete huge-scale localization of autonomous motor vehicles. As tiny and reduced-cost cameras are out there to capture information, capabilities of a acknowledged surroundings can be acknowledged in the captured pictures and made use of to identify the complete digital camera poses. Even so, this sort of an approach lacks suited open-source datasets.

Picture credit history: Eschenzweig by way of Wikimedia, CC-BY-SA-4.

A new paper on proposes a artificial info technology scheme. It takes the geographic digital camera poses as input and renders the simulated RGB pictures accompanied by 2d and 3D modalities this sort of as semantics, geographic coordinates, depth, and floor typical.

Two huge-scale benchmark datasets applying the proposed workflow datasets for sim-to-real visual localization have been curated. Also, a cross-modal visual representation finding out approach was launched for complete localization.

We present a visual localization procedure that learns to estimate digital camera poses in the real world with the assistance of artificial info. Despite considerable development in new many years, most finding out-centered methods to visual localization goal at a one domain and require a dense databases of geo-tagged pictures to operate nicely. To mitigate the info scarcity challenge and enhance the scalability of the neural localization models, we introduce TOPO-DataGen, a flexible artificial info technology tool that traverses smoothly concerning the real and virtual world, hinged on the geographic digital camera viewpoint. New huge-scale sim-to-real benchmark datasets are proposed to showcase and appraise the utility of the mentioned artificial info. Our experiments reveal that artificial info generically boosts the neural community functionality on real info. Additionally, we introduce CrossLoc, a cross-modal visual representation finding out approach to pose estimation that can make whole use of the scene coordinate floor fact by way of self-supervision. Without having any extra info, CrossLoc noticeably outperforms the condition-of-the-art methods and achieves considerably higher real-info sample performance. Our code is out there at this https URL.

Study paper: Yan, Q., Zheng, J., Reding, S., Li, S., and Doytchinov, I., “CrossLoc: Scalable Aerial Localization Assisted by Multimodal Synthetic Data”, , 2021. Website link:

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