About nordland database and queries

[xjh19971]

Hi,

Thank you for providing this unified dataset downloader!

I noticed a key difference in the use of the Nordland dataset between this repository and several other works [1-3]. For [1-3], winter images are used for the database and summer images for queries. However, in this repository, summer images are used for the database and winter images for queries. It would be helpful to note this difference in the repository documentation. Thanks!

[1] Zaffar, M., Garg, S., Milford, M. et al. VPR-Bench: An Open-Source Visual Place Recognition Evaluation Framework with Quantifiable Viewpoint and Appearance Change. Int J Comput Vis 129, 2136–2174 (2021). https://doi.org/10.1007/s11263-021-01469-5
[2] Ali-bey, A., Chaib-draa, B., & Giguère, P. (2024). BoQ: A Place is Worth a Bag of Learnable Queries. In Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (pp. 17794-17803).
[3] Izquierdo, S., & Civera, J. (2024). Optimal transport aggregation for visual place recognition. In Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (pp. 17658-17668).

[gmberton]

Thank you for the advice, I've updated the documentation :)