Arbitrage vidéo : la technologie Hawk Eye relance le débat

Reader, Lauren

Description

L'entreprise britannique HawkEyeInnovation a mis au point un système permettant de vérifier si le ballon a franchi, ou pas, la ligne de but. Ce procédé, appelé Hawk Eye, vient d'être mis en place par la première ligue de football anglaise (Barclay league). Le débat sur l'arbitrage vidéo relancé dans le milieu du football ?
British company HawEyeInnovation just created a system emphasizing if the foot ball cross the goal line or not. This process named HawkEye is installed in Barclay's Premiere League.

Sujets

• FIFA
• Arbitrage vidéo
• Football
• Hawk-Eye
• Championnat d'Angleterre de football

Informations

• Publié par: Fil_Sport
• Publié le: 12 avril 2013
• Nombre de lectures: 122
• Langue: English

Extrait

Hawk-Eye Goal Line Technology

How does it work ?

Typical camera posions.

Hawk-Eye image finding the ball despite it being obscured.

2 cameras combine to give the 3D posion of the ball. All 7 cameras provide extra accuracy and redundancy.

Milan vs. Juventus Serie A 2012: Milan goal disallowed

Hawk-Eye high speed camera view.

Hawk-Eye camera.

The official’s watch.

CAMERA TECHNOLOGY Hawk-Eye install 7 cameras per goal, the most common locaon is on the roof of the stadium, however there is a great deal of flexibility in the camera posions.

VISION PROCESSING The images from each of the cameras are processed to find the ball within the image and also idenfy areas which are definitely NOT the ball. The system is able to find the ball if only a small part of the ball is visible in the image. The system can work with any paern and specific vision processing techniques are used to idenfy each ball. The system is unaffected by mud on the ball or any adverse weather condions.

GOAL ALERT Control soſtware combines the informaon from all cameras and is able to track the ball within the goal area. As soon as the system detects that the ball has crossed the goal line, it instantaneously sends a signal to the official’s watch. The watch has been developed exclusively for Hawk-Eye by industry leaders Adeunis. It is technically possible to also provide a “near miss” signal to the watches so the referee also receives a posive confirmaon that the ball did not cross the line in a close incident.

REALIABILITY AND ACCURACY The system is able to locate the ball even if it is only found in 2 of the 7 cameras. There has never been a goal line incident where the ball would not have been seen by any of the Hawk- Eye cameras. The system is millimetre accurate, which ensures that no broadcast replays could disprove the decision. The system accuracy is not affected by any variances in the painng of the goal line or if the posts not are not perfectly vercal.

DEFINITIVE REPLAY Hawk-Eye ulises a dedicated high speed camera capable of removing the players from the image, to ensure the ball is fully visible. This provides the definive replay for broadcast and digital media.

For more information please contact Steve Carter, [e-mail]

www.hawkeyeinnovations.co.uk