Template structure map internal only
Sections below = proposed final Delta Report. Chart types marked per block.
Delta Report · Karthik Sen
Wed 11 Jun · Court 3 · 47 min singles · Session #14 · Fixed camera · Pose + Gemini intelligence · Movement measured · Biomech cards illustrative
Spatial read · radar fingerprint
Measured (pose layer): court heatmap, distance, peak/avg player speed, coverage %, left–right court bias. Illustrative: spider radar, session momentum bars — sample visuals until multi-session profiles ship.
Court heatmap Measured
Style radar · spider chart Illustrative
Session momentum · bar chart Illustrative
Body marker map · pose-derived biomarkers
Preview of joint-level insights your player's profile builds toward. Delivered today (measured): distance, coverage, heatmap, peak player speed. Not yet per-player: lunge asymmetry grades, shoulder rotation °, recovery stride length — shown below as illustrative targets.
L–R load 54/46 · BH depth −6%Monitor
Hip→shoulder chain · 5/7 cleanGood
Late in min 20–30 blockDrill
Avg 1.4s return-to-TGap
84% wingspan used in stretchStrong
−7%/min post-min 30Conditioning
| Biomarker | Source in pipeline | Audience |
|---|---|---|
| Coverage, distance, peak movement | Pose tracking (YOLO-pose / academy detector) | Both · measured |
| Heatmap, movement trail | Pose → court homography | Both · measured |
| L–R load, lunge depth, split-step | Pose keypoints + temporal rules | Coach · illustrative / roadmap |
| Shot mix, finisher/grinder, rally log | Gemini event layer | Coach · parent top-3 only · demo illustrative |
| Joint angles (roadmap) | Enhanced pose / RF-DETR + 3D lift | Coach · future · illustrative in samples |
Shot mix · rally timeline
Shot tendency · horizontal bar chart
Point endings · stacked bar
4-week trend · line charts
Chart type: multi-line sparkline / line chart — same player file compounding session-over-session.
Coverage % Measured
Distance (m) Measured
Finisher score Illustrative
Fatigue drift · dual line (session vs 4-wk avg)
How Karthik compares to elite tier
Benchmark: Professional reference · U-17 elite singles (aggregated BWF-tier athlete profile — dummy numbers for template). Shown at the end of the report so parents see progress first, gap second.
Spider overlay · you vs pro
Gap analysis · horizontal bars
Path to pro: Biggest gaps = reset quality + fatigue resistance. Coverage and peak movement are already within striking distance of elite U-17 tier.
Parent WhatsApp summary auto-trimmed
Karthik had a strong session — movement KPIs are measured; narrative and pro delta below are illustrative sample copy.
- Include: hero image, 4 KPIs, 1 heatmap, 1 win biomarker, progress line
- Exclude: rally log table, pro delta detail, drill codes
- One home conversation nudge only
Coach action plan full detail
- Cross-court BH recovery · 3×5 min
- Finisher finish · 2×8 rallies
- Fatigue checkpoint · min 20
Include: full §02–§06, rally log, body scan, pro gap bars
Fixed camera → pose pipeline (player detection + keypoints) → court homography → measured movement metrics (distance, speed, coverage, heatmap). Gemini video layer → rallies, shot tendency, finisher/grinder, coach narrative (illustrative in this sample). We measure player movement speed, not shuttle/racket speed. Pro benchmark = cohort reference, not a named athlete. RF-DETR joint angles = roadmap (cards marked illustrative until live per player).