Be your own cameraman: real-time support for zooming and panning into stored and live panoramic video

  • Authors:

  • Vamsidhar Reddy Gaddam;Ragnar Langseth;Håkon Kvale Stensland;Pierre Gurdjos;Vincent Charvillat;Carsten Griwodz;Dag Johansen;Pål Halvorsen

  • Affiliations:

  • University of Oslo, Norway;University of Oslo, Norway;University of Oslo, Norway;Universite de Toulouse, France;Universite de Toulouse, France;University of Oslo, Norway;Univerity of Tromsø, Norway;University of Oslo, Norway

  • Venue:
  • Proceedings of the 5th ACM Multimedia Systems Conference
  • Year:
  • 2014

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Abstract

High-resolution panoramic video with a wide field-of-view is popular in many contexts. However, in many examples, like surveillance and sports, it is often desirable to zoom and pan into the generated video. A challenge in this respect is real-time support, but in this demo, we present an end-to-end real-time panorama system with interactive zoom and panning. Our system installed at Alfheim stadium, a Norwegian premier league soccer team, generates a cylindrical panorama from five 2K cameras live where the perspective is corrected in real-time when presented to the client. This gives a better and more natural zoom compared to existing systems using perspective panoramas and zoom operations using plain crop. Our experimental results indicate that virtual views can be generated far below the frame-rate threshold, i.e., on a GPU, the processing requirement per frame is about 10 milliseconds. The proposed demo lets participants interactively zoom and pan into stored panorama videos generated at Alfheim stadium and from a live 2-camera array on-site.