Semi-automated offside technology

A new system to detect the position of the ball and all 22 players should enhance Video Assistant Refereeing at the World Cup


KICK POINT PRECISION
Automatically detects when and where ball is kicked

Connected Ball Technology:
Suspension System holds and stabilises inertial measurement unit (IMU) motion sensor

IMU transmits inertia data of ball – kick-point, location, direction – at 500Hz, 500 times per second

IMU
Video
0 100 200 300 400 500

Conventional VAR: 50 frames per second


PLAYER POSITIONS

Artificial Intelligence
Assigns and tracks up to 29 data points for each player

Defender
Furthest data point defines offside line

Logged
Extremities relevant to offside calls

1 
12 cameras in roof track positions of ball and all players 50 times/second

2
System tracks when ball is received by player in offside position when ball was kicked

3
OFFSIDE
Alert triggered and validated in Video Operation Room

OFFSIDE LINE
Data point projects beyond offside line

4
Decision communicated to referee


Sources: FIFA, adidas
Pictures: Getty Images
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