facial-recognition-algorithms (i2tutorials)

What are face recognition algorithms?

The face recognition algorithm is responsible for finding characteristics which best describe the image.

The face recognition systems can operate basically in two modes:

Verification or authentication of a facial image: it basically compares the input facial image with the facial image related to the user which is requiring the authentication. It is basically a 1×1 comparison.

Identification or facial recognition: it basically compares the input facial image with all facial images from a dataset with the aim to find the user that matches that face. It is basically a 1xN comparison.

There are different types of face recognition algorithms, for example:

  • Eigenfaces
  • Local Binary Patterns Histograms (LBPH)
  • Fisherfaces
  • Scale Invariant Feature Transform (SIFT)
  • Speed Up Robust Features (SURF)

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