Biometric Systems Components Quiz

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Questions and Answers

What are the main steps that should be applied to the image to extract useful information and match between different images?

  • Transmission, Compression, Data Storage, Expansion
  • Data Collection, Signal Processing, Feature Extraction, Decision
  • Biometric Segmentation, Quality Control, Pattern Matching, Transmission Channel
  • Image Acquisition, Preprocessing, Feature Extraction, Comparison (correct)

Which component is responsible for the main target of the iris region itself in the acquired iris images?

  • Data Collection
  • Feature Extraction
  • Biometric Segmentation (correct)
  • Image Acquisition

What is the general consensus among researchers regarding the main steps applied to iris images for discrimination?

  • Data Collection, Signal Processing, Biometric Segmentation, Feature Extraction
  • Transmission Channel, Quality Control, Sensor Accept/Reject, Accept
  • Data storage, Expansion, Templates, Images Transmission
  • Preprocessing, Feature Extraction, Comparison, Matching DB (correct)

Which step of the iris recognition system involves acquiring iris images and removing unnecessary information like sclera and eyelids?

<p>Preprocessing (C)</p> Signup and view all the answers

What is the purpose of the main target of the iris region in acquired iris images?

<p>Feature Extraction (D)</p> Signup and view all the answers

What is the main purpose of normalization in iris recognition?

<p>To convert the Cartesian coordinate system into a polar coordinate system (D)</p> Signup and view all the answers

What is the major difference between various methods of iris recognition systems proposed in the literature?

<p>The extraction of unique features for each iris image (A)</p> Signup and view all the answers

What is the purpose of matching in an iris verification system?

<p>To check the existence of a person by comparing the codeword resulting from feature extraction with the existence codeword on the database (D)</p> Signup and view all the answers

Which preprocessing step is used to exclude the pupil circle, eyelashes, and reflections from the extracted iris region?

<p>Segmentation and localization (D)</p> Signup and view all the answers

What does the identification process determine in an iris verification system?

<p>The persons existed on the database by comparing their keywords with keywords on the database (C)</p> Signup and view all the answers

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