A clear victory

PSG X4 premiere during Sat.1 boxing

On the occasion of the WBA boxing bout between Felix Sturm and Daniel Geale at the Oberhausen Arena on 1 September 2012, the new PSG X4 Multidisplay Panels were used for the first time to achieve a 42-metre-long rear projection tunnel.
The tunnel, which was used both as an entrance tunnel for the boxers, as studio background for the reporting and as stage for live acts, was projected onto with a total of seven Barco HD20+ projectors.
The challenge for this TV production, run completely in full HD, was to integrate the tunnel walls directly into the programme, so as to add live connections and establishing shots into the studio background as picture-in-picture windows during the studio scenes.
The company Krautscheid Medientechnik took on the complete technical planning of the feed technology on behalf of Michaelis GmbH and, within the context of the requirements, chose to use PSG Catalyst media servers.
The tight production schedule meant that the tunnel could not be set up until midday and had to be fully operational by late afternoon for the content acceptance. System planner Thomas Krautscheid implemented this requirement in a very short space of time. Aided by the iPad Catalyst Remote software, he easily set up the warping of the individual projectors.
Each of the seven projectors was operated with full HD resolution so that a total resolution of 12,040 x 786 pixel was available for content after deduction of the soft-edge areas.
A strong argument in favour of the use of Catalyst media servers was their ability to process several SMPTE timecode signals at the same time and thus to show two films simultaneously that were synchronised with the timecode signals generated by the mobile broadcasting unit. This enabled seamless cross-fading between the pictures in the tunnel and the broadcast picture that was merged in by a magnetic recording device.
Using the four synchronous outputs of the PSG X4 Panels it was possible to show several live pictures, broadcast from the mobile broadcasting unit by HD-SDI, simultaneously without these showing a time offset in the overlapping areas of the projectors.
Thanks to the possibilities for direct use of videos with transparencies, Catalyst Operator Peter Tacke was able to combine many different content elements very quickly.
The clear file structure also benefited the production. Even on the evening of the live broadcast, it was still possible to react quickly to changes and to play new films onto the servers that were then projected onto the tunnel on-the-fly. The use of the Apple ProRes-Codec facilitated the work with the broadcaster to a considerable extent, as this format is used very frequently in television, thus avoiding time-intensive recording work. The entire tunnel projection was fed with four PSG Catalyst v4 Pro media servers with PSG X4 multidisplay panels. The PSG Catalyst media servers and PSG X4 multi-display Panels were provided by Videlight und Krautscheid Medientechnik.

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