CobraEye

Review stepsFollow them in order for a clearer result.

Choose a frameAn image or video to review

Choose a frame to begin the review

Set the play contextAttack direction and the moment the ball was played

Type of play This is the moment the ball was played Did the attacker become involved in active play?

Calibrate the pitch4 points minimum; 6 or more is better

Next pitch reference point Snap to white pitch lines Calibration only

Place player and ball markersThe marker stays exactly where you click; choose the ground projection of the foremost legal body part

Body part represented by the marker

The ball is airborne

Review readinessConfirm the essentials before calculating

1Correct frame selected
2Ball-play moment confirmed
3Calibration is usable
4Attacker, defenders, and ball are marked

Workspace

Place markers on the frame

Pitch calibration

⚽

Start with the correct frame

Upload an image, or select a moment from a video.

1FrameWaiting for source 2Calibration0 of 4 points 3MarkersPlace players and ball 4ResultNot ready

Calibration quality

Are the pitch points consistent?

Waiting for points

—/100

Points0

Error—

Coverage—

Place well-spaced points on clearly visible pitch lines.

Pitch view

Metric map

105 × 68 m

Standard pitch: 105 × 68 metres

DefenderAttackerBallMeasurement line

Calibration points will appear here first, followed by player positions after calculation.

Geometric result

Review summary

Not ready

◌

Complete the case inputs

We explain the result and its measurement limits—not just draw a line on the image.

Distance from line—

Reference line—

Defender used—

Measurement margin—

Add 6 well-spaced reference points for a more stable measurement.

StatusWaiting for calculation Reference— Inputs—

Defender orderThe order will appear after calculation.

Marker sensitivity testShows the effect of moving markers by a few pixels

Waiting for a measurable result

This test measures marker sensitivity; it does not create a new automated decision.

Review an offside position with a clear workflow.

Place markers on the frame

Choose the moment the ball was played

Review cases

Review report