H. Kuehne, H. Juergen, S. Juergen, and T. Poggio (ICC 2011).
If you are working on a project, you can find the complete dataset and the original annotations on the official HMDB51 project page.
This specific file corresponds to the "Diving" action class.
It was one of the first datasets to capture "videos in the wild" (real-world settings like movies and web videos) rather than staged laboratory actions. It challenged AI to recognize movements with shaky cameras, varied lighting, and background clutter. 🛠️ Technical Context