At the Rennsteig ski jump in Oberhof, ccc has installed a multi-camera system that films the ski jumpers during the downhill run and during the jump and automatically cuts together a video from several camera shots.
Special requirements were placed on the video analysis system:
- Shooting at 60fps, FullHD resolution,
- Analysis tools for detailed evaluations,
- weather-resistant hardware,
- Cameras that automatically trigger as soon as the athlete starts his jump.
All of that with speeds of 90 km/h or more.
The cameras were placed in special housings to protect them from the weather. The existing light barrier system was integrated so that the recordings of the 9 lateral cameras start automatically as soon as the athlete is in the picture. A self-developed system on a Rasperry Pi ensures that the cameras start recording with the light signal. In addition, thanks to motion analysis, each shot automatically detects when the athlete is in the frame. The system can intelligently filter out disturbances such as background movements or snowflakes that trigger the light barriers. The individual sequences are then combined into a video.
In addition, a PTZ camera with 32x optical zoom tracks the athlete's entire approach from behind. Facial cameras help identify the athlete before the jump.