An end-to-end system for free viewpoint video for smooth camera transitions
Patrik Goorts, Maarten Dumont, Sammy Rogmans, Philippe Bekaert · 2012
In this paper, we present an end-to-end system for free viewpoint video for smooth camera transitions in sport scenes. Our system consists of a network of static computer vision cameras, a storage infrastructure and an interpolation rendering module, connected with a 10 Gigabit Ethernet network. The user of the system requests a viewpath for the virtual camera and the rendering module then generates the images using a depth-aware plane sweep approach. First, the foreground and background are separated and rendered independently. The foreground is rendered using a plane-sweep approach and the obtained depth map is split up in groups of players. Each group is assigned a global depth, which is used in a second plane sweep to restrict the depth. This will reduce artifacts, such as extra limbs and ghost players. The algorithm is demonstrated on actual soccer recordings. The system is fully automatic and can work in near real-time, thus providing virtual images of high quality in a fast manner.