or panorama. On 10 September 2014, Mapillary announced that they now support panoramas and spherical photos. As of May 2014, Mapillary had around 0.5 million photos and by December 2014, it had over 5.5 million. As of March 2015 it had 10 million photos, and by June 11, 2015, Mapillary had over 20 million photos, and by August 9 over 30 million. As of February 6, 2016 Mapillary had over 50 million photos. Mapillary images, millions Major dataset contributions In 2018, Mapillary acquired major image datasets from two USA state transportation departments: approximately 5 million images each contributed by the Vermont Department of Transportation and the Arizona Department of Transportation. License The images on Mapillary can be used under Creative Commons Attribution-ShareAlike 4.0 International License (CC BY-SA). There is special permission to derive data from the photos for contributing to OpenStreetMap and Wikimedia Commons. The GPX tracks can be used without restriction, and derived data can be used provided it is ODbL. The license was changed on 29 April 2014 from CC BY-NC to CC BY-SA. Mobile apps (Android and iPhone) are proprietary software. Research/datasets In May 2017, Mapillary released an open source subset of its very large and ever-expanding crowdsourced image dataset, the Mapillary Vistas Dataset of 25,000 street-level images, with pixel-wise annotation, to help train autonomous vehicle AI system algorithms. With data from 190 countries, they described it as "the world's largest, most diverse dataset for object recognition on street-level imagery" and offered it free for both academic and commercial researchers, but licensing is required for commercial product integration. Mapillary Tasker On November 28, 2017, Mapillary released a beta tool known as the Mapillary Tasker. Mapillary Tasker "enables a task creator to tell other contributors where help is needed and what needs to be done." On the other hand, contributors can sort through the various tasks listed on the beta and work on whatever projects are interesting and feasible. The tasks can range from "completing coverage, making map edits based on images, and verifying object detection," and separated between capture, map edit, and verification tasks on the actual tool. As a side note, because the tool is currently in beta, users have to send requests to be reviewed by Mapillary administrators, rather than having the autonomy to post whatever task you want assistance with. See also Google Street View KartaView List of street view services OpenStreetMap Web mapping