What is OODPCVS in IEC 62676-4:2025?

OODPCVS is the seven-step pixel-density ladder introduced in IEC 62676-4:2025 alongside the legacy four-step DORI ladder. The steps — Overview (20 px/m), Outline (40), Discern (80), Perceive (125), Characterise (250), Validate (500) and Scrutinise (1500) — give procurement teams finer-grained targets for tasks ranging from situational awareness to passport-grade biometric capture.

Does OODPCVS replace DORI?

No. The classic DORI thresholds (25 / 62.5 / 125 / 250 px/m) remain valid and are still cited by most pre-2025 specifications and many national tenders. OODPCVS is a parallel, more granular ladder. New EU and CENELEC tenders published from 2026 onwards increasingly specify OODPCVS levels in addition to (or instead of) DORI.

How do I calculate OODPCVS distance?

The optics math is identical to DORI: D = horizontal_pixels / (2 × required_px-per-metre × tan(HFOV/2)). Only the px/m threshold per step changes. This calculator runs the formula for all seven OODPCVS levels in parallel.

What threshold do I need for facial verification?

OODPCVS Validate (500 px/m) is the threshold most national procurement bodies will accept for facial or licence-plate verification in 2026 tenders citing IEC 62676-4:2025. The looser DORI Identify (250 px/m) remains sufficient for legacy specs.

When should I plan to Scrutinise (1500 px/m)?

Scrutinise is reserved for passport-grade biometric capture — border control e-gates, high-security ID issuance points, forensic interview rooms. It implies very long focal lengths or extremely close target distances, and is almost never specified outside critical-infrastructure projects.

CCTVPLANNER.IO · CALCULATOR · OODPCVS

OODPCVS-kalkylator (IEC 62676-4:2025)

Pixeltäthetsavstånd för den nya 7-stegs täckningsstegen — Overview till Scrutinise — beräknade i realtid.

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Kameraupplösning

1080p Full HD (2MP)

Sensorstorlek

Brännvidd (mm)

1 mm4.0 mm50 mm

Computed HFOV

68.0°

OODPCVS-avstånd (7-stegsstege)

Overview · 20 PPM

71.1m

Notice motion or general scene activity

Outline · 40 PPM

35.6m

Distinguish rough object shape

Discern · 80 PPM

17.8m

Tell object categories apart (person vs cart)

Perceive · 125 PPM

11.4m

Read posture and behaviour (≈ DORI Recognize)

Characterise · 250 PPM

5.7m

Identify a known person (≈ DORI Identify)

Validate · 500 PPM

2.8m

Facial / licence-plate verification

Scrutinise · 1500 PPM

0.9m

Passport-grade biometric capture

With a 1080p camera on a 1/2.8" sensor and a 4.0 mm lens, OODPCVS Characterise (250 px/m, ≈ DORI Identify) is reachable up to 5.7 m. Beyond that you drop to Perceive — read posture but cannot reliably identify the person.

Vad är OODPCVS?

OODPCVS är den sjustegs pixeltäthetsstege som introducerades av IEC 62676-4:2025. Den finns vid sidan av den äldre fyrstegs DORI-stegen (Detection, Observation, Recognition, Identification) och ger upphandlingsteam finkornigare täckningsmål — inklusive nivåer över DORI Identify för ansiktsverifiering och pass-graderad biometri.

Overview (20 px/m) — situational awareness, motion-only triggers.
Outline (40 px/m) — distinguish coarse object shapes.
Discern (80 px/m) — tell object categories apart (person vs. trolley).
Perceive (125 px/m) — read posture, gesture, behaviour. Equivalent to DORI Recognize.
Characterise (250 px/m) — identify a known person. Equivalent to DORI Identify.
Validate (500 px/m) — face or licence-plate verification suitable for evidentiary use.
Scrutinise (1500 px/m) — passport-grade biometric capture.

De underliggande beräkningarna är identiska med DORI — pixlar per meter på målet — men den nya stegen låter dig ange täckning i tre till sju diskreta band istället för de äldre fyra. Upphandlingar som hänvisar till IEC 62676-4:2025 kräver allt oftare OODPCVS-nivåer utöver (eller istället för) DORI.

Relaterade artiklar

DORI Calculator →

Legacy 4-step ladder (EN 62676-4:2014)

EN 62676-4 explained →

Standard overview and worked tender examples

Pixel Density Calculator →

Find PPM at any distance

Projektera med OODPCVS i åtanke

Använd CCTVplanner för att släppa kameror på en riktig karta, växla var och en mellan DORI och OODPCVS, och exportera en upphandlingsfärdig PDF med båda stegarna sida vid sida.