Biometric Systems and Image Processing

What will be the output of iris feature extraction?

Two samples of same biometric trait may not be recognized as match is called ______

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OFF

Two samples of same biometric trait(mate samples) may not be recognized as match and this leads to_______

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_______________ when the biometric system accurately determines a positive match.

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OFF

The magnitude of the gradient indicates the

• Edge strength

• Edge direction

• Normal edge

• Sharp edge

Which of the following technique is used to minimize the noise introduced by the camera or illumination variations?

• Histogram equalisation

• Feature extraction

• Sharpening

• Enhancement

Face Recognition Vendor Test(FRVT) comes under which evaluation

• Technology evaluation

• Operation evaluation

• Scenario evaluation

• Evaluation

Which one of the following represents the second order derivative method for edge detection?

• Zero crossing

• Prewitt

• Sobel

• Robert

Measure of the similarity between the template and the query is called

• Match score

• Distance Score

• Rank score

• Decision score

Are you someone who is known to the system? Is referred as

• Positive identification

• Negative identification

• Neutral identification

• Positive verification