Face Liveness Docs¶

Simple main guide + deep reference for eKYC teams¶

This documentation is designed to be easy for first-time readers and still useful for deeper technical work.

Instead of forcing everyone through a long encyclopedia-style path, the site has two layers:

Main guide — simple, practical, and fast to understand
Appendix / deep reference — detailed technical, testing, standards, security, and vendor material

Read by track, not just by page number¶

New to face liveness?¶

Read these first:

Building the flow?¶

Then read:

Measuring and improving the system?¶

Then read:

Hardening, release, and support¶

Then read:

Need deep detail?¶

Go to:

Appendix A1 — Key Terms
Appendix A3 — Metrics and Evaluation
Appendix A5 — Security and Privacy
Appendix A8 — Attack Coverage Matrix
Appendix A9 — Data Collection and Labeling
Appendix A10 — Experiment Design
the detailed topic chapters under Deep Reference by Topic in the left navigation

Quick role map¶

If you are...	Best starting pages
product or business	01. Face Liveness Guide, 10. Product Guide, 22. Case Studies
ML / evaluation	08. Evaluation Playbook, 12. Fusion and Meta-Model, 13. Dataset Strategy
backend / platform	03. Deployment Guide, 16. Monitoring and Operations, 23. System Architecture
security / fraud	17. Security Hardening, 15. Error Analysis, Appendix A8
compliance / procurement	Appendix A4, Appendix A6

Reading phases¶

flowchart TB
    A[Start Here]
    B[Practical Playbook]
    C[Engineering and Operations]
    D[Support and Architecture]
    E[Appendix and Deep Reference]

    A --> B --> C --> D
    A --> E
    B --> E
    C --> E
    D --> E

What this documentation covers¶

what face liveness is
why it matters in eKYC
how passive, active, and hybrid methods differ
common attack types from print and replay to injection and AI-generated content
input quality, score interpretation, and thresholding
deployment choices such as on-device, server-side, and hybrid
testing, monitoring, governance, and model updates
fusion, dataset strategy, calibration, and release discipline
security, privacy, troubleshooting, and vendor evaluation

How to use this site¶

Fastest practical path

If you want a simple but complete understanding, read the Start Here pages and the first half of the Practical Playbook. That gives you the end-to-end picture without getting overloaded by standards and taxonomy detail.

When to use the appendix

Use the appendix when you need attack depth, metrics detail, standards mapping, data collection rules, or vendor and procurement checklists.

Deep-dive chapters are still preserved

The earlier topic-by-topic chapters are still available. They now serve as reference material rather than the first reading path.