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October 22, 2022 07:31 pm GMT

How face recognition works?

I was asked this question in my last interview and here is a short and crisp answer of this.

A face recognition is a biometric solution which recognizes human face without physical contact required.

It runs through an algorithm that matches facial nodes to images saved in database.

It first recognizes unique features like nose, eyes, Iris, nose width and length, lips, cheeks, eye brows, jaws etc.

We extract these features from image than compare in database

Its accuracy is 99.31%

Face recognition

The accuracy sometimes decreases because of

  • Lights
  • Face positions
  • Makeup
  • Hair style
  • Accessories

Application of face recognition

  • Criminal Identification
  • Surveillance
  • Police authorities
  • Tracking attendance
  • Defense services
  • Online payment services

Thanks for reading <3


Original Link: https://dev.to/bellatrix/how-face-recognition-works-16ia

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