Definition

1. Noun:
   • A biometric technology: "Facial recognition" is a method of identifying or verifying a person's identity by analyzing and comparing patterns based on their facial features.
   • The process or capability: It refers to the automated process of detecting a human face in an image or video, and then matching it against a database of known faces.

Usage Examples

• Noun:
  • The new smartphone uses facial recognition to unlock the screen.
  • Airports are increasingly deploying facial recognition for security and faster boarding.
  • Privacy advocates have raised concerns about the widespread use of facial recognition by governments.

Advanced Usage

• "facial recognition system/software/technology": Refers to the specific application or tool that performs the recognition.
  • The company developed a highly accurate facial recognition system.
• "facial recognition database": Refers to the collection of facial templates used for matching.
  • The police department maintains a large facial recognition database.

Variants and Related Words

• Face recognition: A common variant with identical meaning.
• Biometric recognition: A broader category that includes facial recognition, fingerprint scanning, and iris recognition.
• Facial analysis: A related technology that may assess attributes (like age or emotion) rather than performing identification.

Synonyms

• Biometric identification (specifically via the face).
• Face detection and recognition (a more descriptive term for the two-step process).

Related Phrases

• Facial recognition algorithm: The set of rules or calculations used by the software.
  • The accuracy of the system depends on its facial recognition algorithm.
• Facial recognition scan: The act of capturing facial data for analysis.
  • Travelers must undergo a facial recognition scan at the border.

Notes on Meaning

The term specifically denotes the automated, technological process. It is not used to describe a human's ability to recognize faces, which would be "face recognition" in a general, non-technical sense. The compound term "facial recognition" strongly implies the use of computer systems and artificial intelligence.

Noun

1. biometric identification by scanning a person's face and matching it against a library of known faces
   • they used face recognition to spot known terrorists