Two-Camera 3D — Markerless Triangulation — biomex.studio

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Frame-by-frame video analysis

Markerless Pose

3D pose & joint angles from video

Triangulated depth from two cameras

Position, velocity, acceleration

Joint coordination plots

Overlay two sessions

Data
Dashboard Publication Quality
Figures & Tables

Force plate jump analysis

Accelerometer Jump

Jump height from a phone/IMU

Split times and velocity

Velocity Profile

GPS/radar velocity analysis

Time normalise signals

Session load & speed bands

OpenField multi-player export

Force vector on video

Filter, RMS, FFT, differentiate

Step detection and cadence

Noise Simulator

Learn filtering interactively

Segmental analysis

Worked equations

Proximal-to-distal sequence

ICC, CV, SEM, MDC

Pool studies, athlete percentiles

Free Body Diagram

Interactive equilibrium and levers

Concept2 force curves & analysis

Motion analysis

Academic peer review

statstoolkit.com

ALPHA ♥ Support

Two-Camera 3D

Real, triangulated depth from two synced cameras. DLT calibration from clicked control points (Abdel-Aziz & Karara, 1971). On-device, no plugins.

1Load two clips

One file per camera — same session, different angles (~30–90° apart).

2Calibrate (DLT)

Give the 3D coordinates of ≥6 known control points (a frame/object visible in both views), then click each point in Cam A and Cam B.

3Sync

Mark a shared instant (a clap / jump) in each clip.

4Triangulate → 3D

BlazePose both clips, triangulate to real 3D.

CAM A

Camera A

CAM B

Camera B

A 0.00s · B 0.00s

3D

Alpha. Ab/Ad (frontal-plane) angles — especially knee valgus — are the weakest-validity markerless tier. Check the reproj_px column and validate against a reference before reporting. Long-axis rotation is only genuine at ankle/wrist.

■ FE · ■ Ab/Ad (valgus) · ■ Rot†

DLT calibration

Control points — 3D coordinates of known reference points (click to edit)

One point per line: label,X,Y,Z (mm), in your own right-handed lab frame. Need ≥6 non-coplanar points visible in both cameras. Default = corners of a 0.5 m cube — replace with your calibration frame/object.

Load control points to start marking.

Sync & triangulate — — fps