automatic face recognition vs facial recognition

automatic face recognition and facial recognition both are nouns.

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

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

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

Other synonyms of automatic face recognition include face recognition.

automatic face recognition (noun)	facial 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