How to Review Facial Movement Signals in Video

Convert consented recordings into time-coded facial movement signals and review each point alongside what actually happened in the source footage.

Interpretation boundary

The signal labels are a model vocabulary for observable patterns, not a record of how someone felt. Do not translate a peak, dip, or category score into a conclusion about stress, engagement, fatigue, authenticity, intent, health, or suitability.

Responsible workflow

Define a permitted use, confirm consent, review recording quality, keep source context available, document limitations, and leave interpretation and follow-up with qualified people.