facial recognition vs automatic face recognition

facial recognition and automatic face recognition both are nouns.

Word	Noun	Adjective	Verb	Adverb
facial recognition	Yes	No	No	No
automatic face recognition	Yes	No	No	No

As nouns, facial recognition and automatic face recognition are synonyms defined as:

facial recognition and automatic face recognition: biometric identification by scanning a person's face and matching it against a library of known faces

Other synonyms of facial recognition include face recognition.

facial recognition (noun)	automatic face recognition (noun)
biometric identification by scanning a person's face and matching it against a library of known faces	biometric identification by scanning a person's face and matching it against a library of known faces