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“AI based Coaching…”
…The future of Sport?
25/02/2023 2
Since 1999
EPFL Spin off
Swiss – Worldwide presence
40 employees
25/02/2023 3
Athletes
better
Officials
fairer
Teams
stronger
Sport
safer
25/02/2023 4
25/02/2023 5
25/02/2023 7
Patterns
Events
Signal
Different class of Data
25/02/2023 8
Dartfish Computer Vision
Optical Tracking Technology
Processing Signal Data
To detect Pattern that make teams win
25/02/2023 9
“Top Cameras”
To track players & objects
“Side Cameras”
To identify Athletes
11
“Top Processor(s)”
To track players & objects
“Side Processor”
To identify Athletes
12
“Post Processor”
To generate Stats & events
25/02/2023 13
From Signal to Stats & Events
X,Y,Z positions
Data processing
Events/tags creation
25/02/2023 14
X,Y Tags
Sauthier Nicolas Nr: 20
Time On Ice (s) 368
Shifts 7
Distance (m) 1578
Average Speed (km/h) 15,41
Maximum Speed (km/h) 31,58
Pass Efficiency (%) 65
Shots 2
Time with Puck (s) 47
Stats vs. Events
25/02/2023 15
Pattern
25/02/2023 16
Patterns appear when
Same conditions leads to
Same series of events with the
Same predictable results at the end
AI & Machine Learning
25/02/2023 18
Annotation
Object & Player Tracking
Identity Detection
Next steps
Annotation is key to ML
25/02/2023 19
Own Tools for specific task to save time
Dedicated Annotators team
Supervised ML for key points detection
Examples of key points annotations
25/02/2023 20
1+ Million images annotated
5+ Million Bounding Box annotated
2+ Million Key points annotated
1’000 Games processed
Annotation’s volume is key
25/02/2023 21
Object & Player Tracking
Clustering method for Teams & referees
Deep Learning for puck, ball & numbers
Tracking is not pure Machine Learning
Tracking by detection based on ByteTrack
25/02/2023 22
Object & Player Tracking
25/02/2023 23
Object & Player Tracking
25/02/2023 24
Challenges in player tracking
Risk of ID Switch
25/02/2023 25
Player identification
Based on Number recognition
Deep Learning for nbr classification
Semi supervised ML for Top Scorers
25/02/2023 26
Challenges in player identity
Which Nbr is it?
25/02/2023 27
Next coming Challenges
Improve event’s detection (shots, pass…)
Pattern Recognition with LHC, EPFL & ZHAW
Vertical Dimension
New sports
25/02/2023 28
Dartfish Tracking is a reality
25/02/2023 30
It delivers real-time high-quality data
25/02/2023 31
Next Step is to deploy in a league
LUPL Unihockey league
QHL Handball League
Top Scorers
…
25/02/2023 32
Contact us to see Dartfish
Tracking in action…
Thank you
Jean-Sébastien Mérieux – CEO
jean-sebastien.merieux@dartfish.com

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