Palma360: A 360-Degree Web-based Multi-device Hypervideo.

360-degree videos have recently grown in popularity thanks to the popularization of virtual reality and its adoption by major online video streaming platforms. Being watched on a diverse array of interfaces (virtual reality headsets, computers, mobile devices, etc.), user behavior needs to be analyzed for all these devices. A 360-degree hypervideo production, a virtual tour around the streets of a city, is played in an experiment by 30 users with multiple devices through a web application which collects their behavior following the Experience API standard. The distribution of viewport centers when playing these 360-degree videos is analyzed and compared between device and video types, showing an evident difference in behavior when playing videos of different type.