Extended CV + audio analysis

Volleyball analysis dashboard

Evidence-backed summary for YouTube video iS3G8p90TYY. Built from the verified 79-minute 1080p recording, dense 30fps checks, YOLO person/ball candidates, pose hints, annotated clips, and timestamped event tables.

Review highlight events Open digital twin Motion subtraction Final Markdown report Event CSV Event JSON

79:29source video duration

3,09030fps frames analyzed

618YOLO samples

8event candidates + clips

Synchronized normalized 2.5D reconstruction

Interactive volleyball digital twin

Scrub the video and inspect the same timestamp as player tracks, pose-derived actions, the ball hypothesis, optical-flow evidence, contact candidates, and physics-fit diagnostics. The 3D scene is draggable.

8 event windows10 fps states2.5D normalized, not metric

Evidence video

loading…Loading manifest…

H06 has no model ball anchors; its candidate path is hidden by default but remains inspectable through the low-confidence toggle and JSON.

Select an event to load synchronized state.

event JSON summary CSV technical report calibration overlay

Tactical 2D court

Interactive 3D hypothesis

Drag to orbit; mouse wheel to zoom. Height/depth are inferred proxies with visible uncertainty—not metric measurements.

ObservedSource pixels, fixed scene, net and sand landmarks.

DetectedPose model, sports-ball model, motion and optical flow.

InferredTrack interpolation, contact/crossing, normalized 2.5D and ballistic fits.

UnknownMetric depth, height, speed, exact score and point winner.

Bottom line

The analysis supports highlight/action identification and player-involvement observations. It does not support exact scoring or a winner without inventing.

Best highlight: 01:12:38–01:12:45, late net action / possible defensive dive.
Best sustained rally window: 00:34:31–00:36:10.
Most machine-supported participants: black/pink, blue/turquoise, and white/ENGLAND #7.

Why no score?

No visible scoreboard overlay or physical scoreboard.
Transcript has no reliable score-call trail.
Net/post blocks central play; teams appear informal/rotating.
Ball detection is candidate-level, not continuous robust tracking.

Highlight order

H0701:12:38 best highlight H0300:34:31 clean exchange H0400:35:35 longer cluster H0500:55:44 multi-player H0200:13:07 ENGLAND #7 H0100:12:17 low defense H0601:06:24 low defense H0801:12:57 short exchange

Event candidates

#1 · H07

01:12:38–01:12:45

best highlight net action candidate

high for action medium for outcome

best highlight candidate: black/pink overhead/set-like action, blue nearby, ENGLAND #7 tracking, far/right defensive scramble or player-to-sand moment

Participants: black-pink; blue; ENGLAND #7/white-light; far/right defender
Machine support: 30fps_frames=210; yolo_samples=42; mean_yolo_person_count=6.36; yolo_ball_hits=4
Outcome: unresolved; score effect unrecoverable
Top frames: 01:12:40;01:12:42;01:12:38;01:12:43;01:12:41

Original clip

Annotated clip

Open evidence sheet

Motion subtraction evidence

Motion overlay

Motion mask

#2 · H03

00:34:31–00:34:43

set or controlled return candidate

medium high

black/pink overhead preparation and blue central movement during sustained middle rally; likely set/controlled return sequence

Participants: black-pink; blue; white/light; near-side player
Machine support: 30fps_frames=360; yolo_samples=72; mean_yolo_person_count=4.08; yolo_ball_hits=7
Outcome: unresolved; score effect unrecoverable
Top frames: 00:34:41;00:34:40;00:34:39;00:34:39;00:34:43

Original clip

Annotated clip

Open evidence sheet

Motion subtraction evidence

Motion overlay

Motion mask

#3 · H04

00:35:35–00:36:10

repeated exchange cluster

medium

repeated ball-in-air/set-like actions with multiple participants; cluster rather than one clean point

Participants: black-pink; blue; white/light/shirtless near-side players
Machine support: 30fps_frames=1050; yolo_samples=210; mean_yolo_person_count=4.12; yolo_ball_hits=5
Outcome: unresolved; score effect unrecoverable
Top frames: 00:35:42;00:35:42;00:36:05;00:35:41;00:35:40

Original clip

Annotated clip

Open evidence sheet

Motion subtraction evidence

Motion overlay

Motion mask

#4 · H05

00:55:44–00:55:55

multiplayer exchange candidate

medium

short multi-player exchange with ball/action candidates and strong blue/black-pink involvement

Participants: white/ENGLAND #7; blue; black-pink; near-side light/shirtless player
Machine support: 30fps_frames=330; yolo_samples=66; mean_yolo_person_count=4.23; yolo_ball_hits=13
Outcome: unresolved; score effect unrecoverable
Top frames: 00:55:52;00:55:49;00:55:53;00:55:45;00:55:52

Original clip

Annotated clip

Open evidence sheet

Motion subtraction evidence

Motion overlay

Motion mask

#5 · H02

00:13:07–00:13:14

active exchange candidate

medium

ENGLAND #7 / white-light participant moves low/aggressively during early exchange; point result not visible

Participants: ENGLAND #7 / white-light; blue; black-pink
Machine support: 30fps_frames=210; yolo_samples=42; mean_yolo_person_count=3.69; yolo_ball_hits=8
Outcome: unresolved; score effect unrecoverable
Top frames: 00:13:14;00:13:13;00:13:12;00:13:08;00:13:12

Original clip

Annotated clip

Open evidence sheet

Motion subtraction evidence

Motion overlay

Motion mask

#6 · H01

00:12:17–00:12:22

defensive retrieve candidate

medium

white/light player low defensive lunge/retrieve candidate; supported by dense video and person/player motion, but contact/outcome not certain

Participants: white/light player; nearby blue/black-pink context
Machine support: 30fps_frames=150; yolo_samples=30; mean_yolo_person_count=2.97; yolo_ball_hits=5
Outcome: unresolved; score effect unrecoverable
Top frames: 00:12:21;00:12:20;00:12:18;00:12:20;00:12:22

Original clip

Annotated clip

Open evidence sheet

Motion subtraction evidence

Motion overlay

Motion mask

#7 · H06

01:06:24–01:06:45

low defense candidate

medium

black/pink low defensive posture/lunge sequence; exact touch and point outcome not certain

Participants: black-pink; blue; ENGLAND #7/white-light
Machine support: 30fps_frames=630; yolo_samples=126; mean_yolo_person_count=2.33; yolo_ball_hits=0
Outcome: unresolved; score effect unrecoverable
Top frames: 01:06:32;01:06:43;01:06:38;01:06:32;01:06:26

Original clip

Annotated clip

Open evidence sheet

Motion subtraction evidence

Motion overlay

Motion mask

#8 · H08

01:12:57–01:13:02

short late exchange candidate

medium

short late exchange involving ENGLAND #7/white-light, blue, black/pink and shirtless/light players; likely reset follows

Participants: ENGLAND #7/white-light; blue; black-pink; shirtless/light player
Machine support: 30fps_frames=150; yolo_samples=30; mean_yolo_person_count=4.07; yolo_ball_hits=3
Outcome: unresolved; score effect unrecoverable
Top frames: 01:12:59;01:13:00;01:13:01;01:12:58;01:13:00

Original clip

Annotated clip

Open evidence sheet

Motion subtraction evidence

Motion overlay

Motion mask

Motion-subtraction layer

Dedicated MOG2/KNN/background-difference pass over the 8 highlight windows. This layer isolates movement timing and movement regions; it supports activity confidence, but it still does not prove touch order, point winner, or score.

Motion report Motion CSV Motion JSON

H07 · 01:12:38–01:12:45

best highlight net action candidate

Mean motion ratio 0.0293; max 0.0539; top motion times: 01:12:40, 01:12:39, 01:12:42, 01:12:41, 01:12:40

overlay clip · mask clip · heatmap · top-motion sheet

H03 · 00:34:31–00:34:43

set or controlled return candidate

Mean motion ratio 0.0250; max 0.0634; top motion times: 00:34:39, 00:34:40, 00:34:39, 00:34:40, 00:34:41

overlay clip · mask clip · heatmap · top-motion sheet

H04 · 00:35:35–00:36:10

repeated exchange cluster

Mean motion ratio 0.0177; max 0.0852; top motion times: 00:36:06, 00:36:06, 00:35:40, 00:35:40, 00:35:41

overlay clip · mask clip · heatmap · top-motion sheet

H05 · 00:55:44–00:55:55

multiplayer exchange candidate

Mean motion ratio 0.0734; max 0.4547; top motion times: 00:55:52, 00:55:49, 00:55:53, 00:55:50, 00:55:50

overlay clip · mask clip · heatmap · top-motion sheet

H02 · 00:13:07–00:13:14

active exchange candidate

Mean motion ratio 0.0228; max 0.0503; top motion times: 00:13:10, 00:13:11, 00:13:12, 00:13:10, 00:13:12

overlay clip · mask clip · heatmap · top-motion sheet

H01 · 00:12:17–00:12:22

defensive retrieve candidate

Mean motion ratio 0.0188; max 0.0367; top motion times: 00:12:21, 00:12:21, 00:12:20, 00:12:22, 00:12:19

overlay clip · mask clip · heatmap · top-motion sheet

H06 · 01:06:24–01:06:45

low defense candidate

Mean motion ratio 0.0109; max 0.0486; top motion times: 01:06:38, 01:06:32, 01:06:38, 01:06:43, 01:06:32

overlay clip · mask clip · heatmap · top-motion sheet

H08 · 01:12:57–01:13:02

short late exchange candidate

Mean motion ratio 0.0224; max 0.0389; top motion times: 01:13:00, 01:13:00, 01:12:58, 01:12:59, 01:13:00

overlay clip · mask clip · heatmap · top-motion sheet

Artifacts

Generated locally from verified artifacts in /home/kristjan-variksoo/volleyball-analysis-iS3G8p90TYY. All sports claims are timestamped; unresolved score/winner claims are intentionally not invented.