Control
0.5 px
Wrist–ball contact precision
Analyze a rep
Film 5–10 seconds on your phone (PSF trainer visible, side angle). MVP is upload-first; real-time comes later.
Sample replay — clean iPhone source
InputBall trackPose + angles
Phase 0 PoC: VballNet + Sports2D on img_7256.mov · reps start at ready pose (frame 0 + coast valleys) · green left edge = rep start, colored bar = rep window
Ball track comparison — raw vs gated
Same clip with rep overlays: red = raw VballNet, green = raw_g1 (minimal wrist/teleport gate only). Yellow line = disagreement.
raw_g1 on img_7256 · green dot should sit on the yellow ball for the full clip — not a smoothed wrong track
Algorithm bake-off (separate families)
Compare WASB, TrackNetV2, DeepBall, MonoTrack, and our VballNet baseline — each as its own video (single dot, no fusion spaghetti).
Open algorithm bake-off page →
Clip: img_7256 · OOTB pretrained weights only
Coaching metrics (provisional)
Final metrics will be inferred from Alex's good/bad labeled corpus. Mapped to Speed · Power · Control.
Control
100%
Ball track coverage
Speed
412 px/s
Hitting wrist speed at contact
Power
49°
Right elbow at contact
Power
100°
Trunk angle at contact
Form signal
Awaiting labeled training set
Classifier trains on coach-labeled good vs bad swings — not live yet.