Image Sensing and Acquisition MCQ

1. The most familiar single sensor used for Image Acquisition is
a) Microdensitometer
b) Photodiode
c) CMOS
d) None of the Mentioned


2. A geometry consisting of in-line arrangement of sensors for image acquisition
a) A photodiode
b) Sensor strips
c) Sensor arrays
d) CMOS


3. CAT in imaging stands for
a) Computer Aided Telegraphy
b) Computer Aided Tomography
c) Computerised Axial Telegraphy
d) Computerised Axial Tomography


4. The section of the real plane spanned by the coordinates of an image is called the _____________
a) Spacial Domain
b) Coordinate Axes
c) Plane of Symmetry
d) None of the Mentioned


5. The difference is intensity between the highest and the lowest intensity levels in an image is ___________
a) Noise
b) Saturation
c) Contrast
d) Brightness


6. _____________ is the effect caused by the use of an insufficient number of intensity levels in smooth areas of a digital image.
a) Gaussian smooth
b) Contouring
c) False Contouring
d) Interpolation


7. The process of using known data to estimate values at unknown locations is called
a) Acquisition
b) Interpolation
c) Pixelation
d) None of the Mentioned


8. Which of the following is NOT an application of Image Multiplication?
a) Shading Correction
b) Masking
c) Pixelation
d) Region of Interest operations


9. The procedure done on a digital image to alter the values of its individual pixels is
a)Neighbourhood Operations
b) Image Registration
c) Geometric Spacial Transformation
d) Single Pixel Operation


10. In Geometric Spacial Transformation, points whose locations are known precisely in input and reference images.
a) Tie points
b) Réseau points
c) Known points
d) Key-points