I love using CVAT.ai because it gives us a seamless experience with our data annotation. Since our team is dispersed across different locations, it's much easier for everyone to log in to a central portal to do annotations. One of the key features that I like is the ability to pinpoint a specific object instance, create a hyperlink for it, and send it to my team with questions or queries regarding it, and vice versa.

Several features in CVAT are very helpful for increasing productivity during labeling. First, the “Show bitmap” option is especially powerful for catching human errors, such as missing gaps between adjacent polygons. Another useful feature is the automatic bordering option, which helps when working with adjacent polygons by making it easier to add only the remaining polygon.

CVAT is easy to use, and it does a great job of supporting the setup and management of multi-user teams.