Build a 3D Soccer Offside (VAR) System
Blog post from Roboflow
Alexei Alexandrovich introduces a tool designed to democratize the technology behind soccer's offside verdicts by making it accessible for general use. Unlike the expensive semi-automated systems used in professional games, which rely on a rig of synchronized cameras and a control team, this new system can analyze any video footage to determine offside positions using a single camera. The process involves uploading a clip, detecting pitch lines, identifying relevant players, and reconstructing them in 3D using tools such as RF-DETR and SAM3D Body, which work together to provide a 3D representation of the scene. Although not as precise as FIFA's multi-camera VAR, the system offers promising results, running on a phone video for minimal GPU costs. It is available for public use through a Hugging Face space, potentially bringing advanced VAR technology to local games and amateur footage.
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