What PongAI measures

A measurement you cannot trust is worse than one you do not have. Here is exactly what PongAI can detect, what it cannot, and the conditions it works best in.

◎What PongAI measures

Can measure

stance width
weight transfer
trunk rotation
backswing amplitude
contact height relative to shoulder
elbow extension
follow-through
recovery time
footwork
distance from table
consistency across a session

Cannot measure

spin
racket angle
ball placement
ball depth
timing relative to the bounce

Works best with

sideline camera
120 fps (60 fps minimum for swing-speed metrics)
static camera on a tripod
one table in frame
both players visible

PongAI works from body pose only — it never tracks the ball. That is why spin, racket angle and ball placement are absent rather than estimated.