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 kalkulators (IEC 62676-4:2025)

Pikseļu-blīvuma attālumi jaunajai 7 soļu pārklājuma kāpnēm — Pārskats līdz Padziļināts apskate — aprēķināti reālajā laikā.

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Kameras izšķirtspēja

1080p Full HD (2MP)

Sensora izmērs

Fokusa attālums (mm)

1 mm4.0 mm50 mm

Computed HFOV

68.0°

OODPCVS attālumi (7 soļu kāpnes)

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.

Kas ir OODPCVS?

OODPCVS ir septiņu soļu pikseļu blīvuma kāpnes, ko ieviesa IEC 62676-4:2025. Tas atrodas blakus mantotajām DORI četru soļu kāpnēm (Detektēšana, Novērošana, Atpazīšana, Identifikācija) un dod publiskā iepirkuma darbiniekiem detalizētākus pārklājuma mērķus — ieskaitant līmeņus virs DORI Identifikācijas sejas verifikācijai un pasporta kvalitātes biometrijai.

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.

Pamatā esošā matemātika ir identiska DORI — pikseļi uz metru mērķī — taču jaunā kāpne ļauj jums norādīt pārklājumu trīs līdz septiņās atsevišķās joslās, nevis mantotajā četrās. Publiskais iepirkums, citējot IEC 62676-4:2025, arvien vairāk pieprasa OODPCVS līmeņus papildus (vai vietā) DORI.

Saistītie raksti

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

Projektējiet, paturot prātā OODPCVS

Izmantojiet CCTVplanner, lai novietotu kameras reālajā kartē, pārbīdītu katru starp DORI un OODPCVS, un eksportētu publiskā iepirkuma gatavā PDF ar abām kāpnēm blakus.