BIOMETRIC SECURITY - IRIS RECOGNITION

What makes iris recognition a powerful biometric modality?

• High accuracy and non-intrusiveness
• Low computational requirements
• Suitable for visible light imaging
• Requires physical contact with the subject

Which part of the eye surrounds the pupil and contains unique patterns?

• Sclera
• Cornea
• Iris
• Pupil

What factors contribute to the distinctiveness of the iris?

• Age and height
• Genetic and environmental influences
• Hand dominance and blood type
• Diet and exercise routine

Which type of illumination is commonly used for iris image acquisition?

• Ultraviolet
• Visible light
• Near-infrared
• X-ray

What is the purpose of pupil dilation during iris image acquisition?

• To cause discomfort and induce blinking
• To ensure proper eye positioning
• To enhance iris visibility in the image
• To measure the size of the pupil accurately

Which preprocessing step is essential for reducing noise and artifacts in iris images?

• Segmentation
• Normalization
• Denoising
• Feature extraction

Which feature extraction algorithm is commonly used in iris recognition?

• Principal Component Analysis (PCA)
• Histogram Equalization
• Daugman's Integro-Differential Operator (IDO)
• Genetic Algorithm (GA)

What does an iris template represent in iris recognition?

• The unique texture pattern of the iris
• A magnified image of the entire eye
• The color of the iris
• The dilation of the pupil

Which distance metric is used for matching iris templates?

• Euclidean distance
• Manhattan distance
• Hamming distance
• Correlation coefficient

In which real-world application is iris recognition commonly used for access control?

• Weather forecasting
• Airport security
• Musical instrument tuning
• Stock market analysis