You are here

The Senna car accident

Fotogramma dellìimpattoThe images of the lethal accident of Ayrton Senna have been processed by the computers of CINECA, technical assistent of the State Prosecutor attorney during the court case foreseen on February, 20th at Imola.

At the Laboratory of Scientific Visualization (VIS.I.T.) of CINECA a multi-media software (the so-called Enhanced Multi Sequence Viewer) has been produced that allows a synchronized voyage through the large amount of images and data, related to the dynamics of the car accident of the brazilian F1 pilot on May, 1st of 1994 at Imola.

The staff of the laboratory (Luigi Calori, Antonella Guidazzoli, Alessandro Sarti), nominated technical assistent of the State Prosecutor Maurizio Passarini, has processed the obtained data (images sequences of the car-cameras of the pilots Senna and Schumacher, images of the RAI TV-cameras taken at the Tamburello curve). All the images have been digitized and processed, and have been put together in one single screen, together with the telemetry data tracked by the black box in the car of Senna (number of rounds per minute, speed, state of the wheels, temperature, etc.). At every moment, the software thus provides a frame by frame dynamical progress of the sequences.

The produced software has been handed over to the DA on CD-ROM, and thus a high resolution view of the images to the judge and the technical commission is garantueed. The images will be projected on a big screen during the court case.

For the logistics and the disposition of the necessary workstation O² available by Silicon Graphics, the staff of the Laboratory will be responsible.

State-of-the-art image processing techniques have been applied to the video sequences in order to augment their quality in favor of the State Prosecutor interpretation. In particular, filtering techniques have been used to remove the noise present in the images of the RAI camera's (i.e. the loss of image resolution of the moving vehicle) and of the car-camera's (i.e. defocalization, presence of gasses and solid particles). On certain details of the car-camera images equalization techniques have been applied for a more clear view.

All the implemetation has required two month work.

The Laboratory of Scientific Visualization

The Laboratory of Scientific Visualization (VIS.I.T.) of the CINECA Supercomputing Center is an interdisplicinary laboratory dedicated to supporting visualization of massive or complex numerical data to users. From 1988 on, more and more application fields have been entered by its staff: medicine, meteorology, engineering, economics, computational archeology, virtual reality applied to artistic and cultural heritage. Together with the development of telecommunication networks (Internet) and multi-media technology, this requires also exploring new disciplines, e.g. mathematical science or humanities.
Bologna, 18 febbraio 1997