Periocular / Sclera / Retina Recognition
Biometrics based on eye-adjacent regions—periocular texture, scleral patterns, or retinal vasculature—used when full-face or iris capture is limited.
Overview
Periocular and retina methods analyze regions around the eye to identify individuals, providing fallback or high-accuracy options in constrained environments.
How it works
- Capture high-resolution imagery of the eye region.
- Extract texture or vascular features.
- Match against templates using specialized algorithms.
Common use cases
- Masked face scenarios
- Surveillance at a distance
- Medical or access-control research
Strengths and limitations
Strengths: Works with partial faces; retina offers very low error rates.
Limitations: Intrusive imaging for retina; limited commercial deployments.
Key terms
- Periocular region: Area surrounding the eye.
- Retinal vasculature: Blood vessel pattern at the back of the eye.