IEC 62676-4 Standard
Updated v1.0
Optical Density & DORI Calculator
Map your surveillance use case to required pixel density (PPF). Analyze detection, observation, recognition, and identification zones based on sensor and lens physics.
Share Configuration
This link saves all your current settings — anyone who opens it will see the same configuration.
Scene Parameters
50
ft
10ft
300ft
2.8
mm
How It Works
We use the IEC 62676-4 standard formula. Pixel Density (PPF) is calculated by dividing horizontal pixels by the field of view width at the target distance.
PPF = Resolution / FOV(ft)
DORI Standard Rating
Recognition
Known individual can be verified.
Detect
Observe
Recognize
Identify
8 PPF
19 PPF
38 PPF
76 PPF
Pixel Density
41.5 PPF
136
PPM
Field of View
92.5 ft
Width at Target
Real-Time Mathematical Formulation
FOV
=
5.18mm
×
50ft
2.8mm
=
92.5 ft
PPF
=
3840px
92.5ft
=
41.5 pixels/ft
Live Simulation Preview
3840px Width • 4K UHD
ABC-123
Simulated Digital Zoom & Clarity
RECOGNITION
Architect's Recommendation
Optimal Configuration: This setup meets standard security requirements for Identification/Recognition. Ensure camera is mounted no higher than 15ft for optimal facial capture angle.