18. Which of the following statements is/are true? (i) Face recognition is more scalable to large datasets than face verification (i) Face recognition is generally a harder task than face verification (li) In face recognition, the open set matching problem is less difficult than the closed set problem (a) (i) only (b) (ii) only (c) (iii) only (d) Both (i) and (ii) (e) Both (ii) and (ii) 19. Which of the following statements is/are true? (i) Eigenface face recognition is based on Fast Marching Methods (i) Eigenface face recognition is a form of Principal Components Analysis (iii) Eigenface face recognition is based on colour features of face images (a) (i) only (b) (i) only (c) (ii) only (d) Both (i) and (i) (e) Both (ii) and (ii) 20. Which of the following statements is/are true? (i) The left and right eye iris patterns of a given person are generally identical (i) Fingerprint recognition is generally based on minutiae matching (ii) ris biometrics cannot operate from as large a distance as face biometrics (a) () only (b) (i) only (c) (ii) only (d) Both (i) and (ii) (e) Both (i) and (iii)
Homework Answers
17. option c is the correct answer. Homography exists when camera rotation and translation takes place resulting in two images of the world.
18.option d is the correct. Actually verification involves authentication of any individual done by comparison of some specific biometric in a database while recognition involves comparison of various biometrics stored in database.This face recognition is more scalable and is also a tougher task since it involves greater datasets.Thus both statement (I) and (ii) are correct.
19.option e is the correct answer. Eigenface recognition technique is a form of principal component analysis.Further it is based on colour features of face images..As such last two statements are correct.
20.Left and right eye Iris patterns Of a given person are different.They are not identical instead it is Unique.Even for twins they are different.Hencw 1st option is wrong.
Option e is the correct ans miniutiae pts.are unique for an individual and is used to determine the fingerprint pattern by miniutiae extraction technique..Iris biometric can work for small organization and the individual should be in the range of detection.
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