Digital Image Processing Multiple Choice Questions on “Fuzzy Techniques – Transformations and Filtering”.
1. What is the set generated using infinite-value membership functions, called?
A. Crisp set
B. Boolean set
C. Fuzzy set
D. All of the mentioned
Answer: C
Clarification: It is called fuzzy set.
2. Which is the set, whose membership only can be true or false, in bi-values Boolean logic?
A. Boolean set
B. Crisp set
C. Null set
D. None of the mentioned
Answer: B
Clarification: The so called Crisp set is the one in which membership only can be true or false, in bi-values Boolean logic.
3. If Z is a set of elements with a generic element z, i.e. Z = {z}, then this set is called _____________
A. Universe set
B. Universe of discourse
C. Derived set
D. None of the mentioned
Answer: B
Clarification: It is called the universe of discourse.
4. A fuzzy set ‘A’ in Z is characterized by a ____________ that associates with element of Z, a real number in the interval [0, 1].
A. Grade of membership
B. Generic element
C. Membership function
D. None of the mentioned
Answer: C
Clarification: A fuzzy set is characterized by a membership function.
5. A fuzzy set is ________ if and only if membership function is identically zero in Z.
A. Empty
B. Subset
C. Complement
D. None of the mentioned
Answer: A
Clarification: It is called an Empty set.
6. Which of the following is a type of Membership function?
A. Triangular
B. Trapezoidal
C. Sigma
D. All of the mentioned
Answer: D
Clarification: All of them are types of Membership functions.
7. Which of the following is not a type of Membership function?
A. S-shape
B. Bell shape
C. Truncated Gaussian
D. None of the mentioned
Answer: D
Clarification: All of the mentioned above are types of Membership functions.
8. Using IF-THEN rule to create the output of fuzzy system is called _______________.
A. Inference
B. Implication
C. Both the mentioned
D. None of the mentioned
Answer: C
Clarification: It is called Inference or Implication.
9. What is the independent variable of fuzzy output?
A. Maturity
B. Membership
C. Generic Element
D. None of the mentioned
Answer: A
Clarification: Maturity is the independent variable of fuzzy output.
10. Which of the following is not a principle step in fuzzy technique?
A. Fuzzify input
B. Apply implication method
C. Defuzzify final output
D. None of the mentioned
Answer: D
Clarification: All of the mentioned above are key steps in fuzzy technique.