By Anderson Consulting Partners | Published: July 5, 2026 | 10 min read | Target Audience: CTOs, CISOs, Security Managers Consultants
Replacement of Legacy DORI: The old "DORI" guidelines (Detection, Observation, Recognition, Identification) built for analogue screens are completely replaced by the IEC 62676-4:2025 standard.
7-Level Quality Framework (OODPCVS): Establishes precise Pixels Per Metre (px/m) benchmarks ranging from 20 px/m up to 1500 px/m.
Doubled Identification Benchmark: Identification requirements move from 250 px/m up to 500 px/m (Validate) for positive facial verification and ANPR/LPR license plate recognition.
High-Resolution VMS Impact: Massive video data streams require modern server hive VMS architectures with automatic failover.
Defensible Evidence: Ensures visual footage passes legal audits and holds up in court without failing compliance checks.
1. Goodbye DORI, Hello OODPCVS
2. The 7 Image Quality Levels
3. Enterprise VMS Requirements
4. Server Hive Architecture
5. Why Choose ACP Advisory
For over a decade, purchasing a video surveillance system meant relying on a set of guidelines known as "DORI" (Detection, Observation, Recognition, Identification). However, this old framework was built for the era of analog televisions and fuzzy screens, assuming that if a person filled a TV screen, they could be perfectly identified. In the modern world of high-definition digital cameras, advanced artificial intelligence, and complex cyber threats, those old rules have completely broken down.
Enter the newly published IEC 62676-4:2025 standard.
A complete rewrite of global video surveillance guidelines that makes choosing and installing the right security system far more precise, reliable, and legally defensible.
Here is a simple breakdown of what these new standards mean for your business and how you can seamlessly upgrade your infrastructure.
The biggest change in the 2025 standard is how we measure image quality. Instead of vague promises, the new standard introduces a highly specific, seven-level framework called OODPCVS, based on "pixels per metre" (the number of pixels that make up a one-metre width in the real world).
This framework forces system designers to focus on what a human operator can actually do with the video footage rather than just what the camera theoretically captures.
Overview (20 pixels/metre): Best for perimeter monitoring. You can tell if something is moving in the distance, but you can't tell exactly what it is.
Outline (40 pixels/metre): You can track the outline and direction of a moving object.
Discern (80 pixels/metre): You can confidently tell the difference between a person, an animal, and a vehicle.
Perceive (125 pixels/metre): You can see general movements and clothing, but specific characteristics (like gender or facial details) remain unclear.
Characterize (250 pixels/metre): You can identify a person's behaviour, walking style, and the exact make and model of a vehicle. Under the old rules, this was mistakenly considered good enough for perfect identification.
Validate (500 pixels/metre): This is the new benchmark for automatic facial recognition and reading license plates. It gives you the clarity to verify known individuals without a doubt.
Scrutinize (1500 pixels/metre): The ultimate forensic level. This provides passport-photo quality detail, allowing operators to see eye colour, tattoos, or small vehicle inspection stickers.
The new standard also requires businesses to view video surveillance as just one piece of a three-pronged security strategy combining structural barriers, electronic measures (like cameras), and organisational protocols (like guard patrols).
Because the new 2025 standards demand much higher pixel densities often doubling the required resolution from 250 to 500 pixels per metre for basic identification; your network and video management system (VMS) are going to work harder than ever.
To handle this massive influx of high-definition data without freezing your network, you need a modern, enterprise-grade VMS. While we won't name specific products, the best modern platform on the market operates on a highly optimised, lightweight "server hive" architecture.
If one server goes down, the system instantly shifts the camera feeds to another server without requiring expensive backup licenses.
Whether you are on a Windows PC, a Mac, a Linux machine, or a smartphone, the interface should be lightning-fast, intuitive, and highly customisable.
With the new "Validate" and "Scrutinize" high-definition standards, operators shouldn't have to scrub through hours of footage. Top-tier enterprise systems allow you to highlight a specific area on your screen (like a doorway) and instantly see every time motion occurred there over the last month.
The new standards clearly separate human forensic review from AI analytics. The ideal enterprise VMS will integrate seamlessly with AI cameras, allowing you to filter searches by "red vehicles" or "people wearing backpacks" in seconds.
The transition to the IEC 62676-4:2025 standards is not just a simple software update; it changes how your cameras must be placed, how your network handles data, and how your business stays compliant with the law. If your current system relies on vague "high-definition" promises instead of measurable pixel-per-metre outcomes, you are at risk of failed security audits and unusable evidence.
This is why you should contact Anderson Consulting Partners for your next upgrade or new installation.
Navigating the complex requirements of the 2025 standards; from calculating exact pixel densities to ensuring your cybersecurity meets the new grading requirements; requires specialised expertise. Anderson Consulting Partners takes the guesswork out of your security infrastructure. They will assess your unique site risks, design a system that mathematically guarantees the exact level of visual detail you need (whether that is Perceive for a parking lot or Scrutinize for a secure entryway), and deploy the fastest, most reliable enterprise video management software to tie it all together seamlessly.
Contact Anderson Consulting Partners today to schedule an architectural consultation and ensure your next security upgrade is robust, compliant, and built for the future.
Our goal is to look beyond the hardware and collaborate to make the world a safer place together.
Please Note: The information provided in these articles is general in nature and intended for educational purposes. Every operational environment has unique vulnerabilities; therefore, it is recommended to seek site-specific expert advice for your specific needs.
