Face lock feature of a smartphone is an example of computer vision. Briefly discuss this feature.
Generated by claude-sonnet-4-6 · 2026-06-21 03:18 · grounding rag
Model Answer
Face lock (facial recognition) is a computer vision application where the smartphone's camera captures the user's face and converts it into digital data. The algorithm analyses facial features (like eyes, nose, jawline) and compares them with the stored facial data. If it matches, the phone unlocks; otherwise, access is denied.
Source: Applications of Computer Vision, Chapter 5
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Explanation
- The question asks you to briefly discuss, so 2–3 sentences covering what it does and how it works is sufficient.
- Key points examiners expect: camera captures face → features analysed → compared with stored data → match/no match decision.
- Avoid writing a long paragraph; 40–55 words is ideal for 2 marks.
- The textbook specifically mentions facial recognition under security applications — link your answer to that context.