General Digital Imaging MCQs

1. Which of the following statement is not true?

2. A CRO screen has 10 divisions on the horizontal line. If a voltage signal 5sin(314t + 45) is examined with a line base setting of 5 ms/divisions, the number of cycles in the signal displayed on the screen will be_______.

3. A compandor is a

4. A certain oscilloscope with a 4cm by 4cm screen has its sweep output fed to its input. If the x and y sensitivities are the same, the oscillosope will display a_______.

5. In the image representation , a picture-element is also called a _____.

6. In which of the following image segmentation techniques are quad- trees used?

7. Which of the following is a linear filtering method?

8. Which of the following is an image data compression technique?

9. Which of the following is an application of the digital image processing?

10. Inter-frame coding technique exploits the ______ between successive frames.

11. Which of the following types of photoreceptors does the retina of the human eye contain?

12. In which of the following processes is the binary ladder used?

13. To read the RMS value of which of the following waveforms are true RMS reading voltmeters used?

14. White Block Skipping (WBS) is a method used for_______.

15. What is the range of wavelength of the light in the visible region?

16. Which of the following statements represents the Bloch's law?

17. On how many input samples does the zero memory quantizer operate at a time?

18. The Wiener filter can be implemented in the frequency domain via_______.

19. For which of the following image data compression techniques is PCM used as a method?

20. For which of following techniques is vector quantization used as a method?

21. The term digital image generally refers to the processing of a _____.

22. Under which of the following conditions is the phenomenon called contouring used?

23. Which of the following filters is used for image restoration?

24. Which of the following effects shows that brightness is not a monotonic function of luminance?

25. In the structural patterns of the surfaces of which object is texture observed?

26. Which of the following is an image restoration model?

27. Which of the following is an advantage of the vacuum tube voltmeter over the transistorized voltmeter (TVM)?

28. Which of the following can be termed a two- tone image?

29. To which of the following types does Weiner filtering belong?

30. Contrast stretching is an_______.

31. Which type of target is there in the vidicon tube?

32. Which of the following expressions can define the Q -factor of a coil?

33. In the intermediate region of illumination,both rods and cones are active and provide _____.

34. If two sinusoidal voltage signals, between 0 and 90 degree out of phase and of equal amplitude and equal frequencies: in a CRO are applied to the horizontal and vertical deflection plates, what shape will appear on the screen?

35. Which type of vision is provided by the rods in the human eye?

36. Which of the following techniques does Kalman filtering employs?

37. Two objects with different surroundings can have identical _______ but different ________.

38. Which of the following is a moment based feature of an image?

39. Which of the following is an image segmentation technique?

40. Which of the following techniques is used in analog to digital (ADc)conversion?

41. Which of the following is not an image filtering method?

42. The phenomenon in which overlapping of frequency spectrum takes place in sampling is called _______.

43. Which of the following methods is used to analyse the structure of patterns in image analysis?

44. Which of the following steps follows sampling in image digitization?

45. Which of the following filters can effectively remove the aliasing effect?

46. Of which of the following types is the general response of image detectors and recorders?

47. Which of the following is an image analysis technique?

48. About which of the following domains does image transform during image analysis provide information?

49. Which of the following is not a method of predictive coding?

50. Which of the following is a type of digital voltmeters?

51. Which of the following techniques belongs to inter-frame coding?

52. Which of the following is a method to reduce speckle noise?

53. Which of the following statements is true of quantizer mapping?

54. Which of the following noises is produced when monochromatic radiation is scattered from a surface and when roughness is of the order of a wavelength?

55. Which type of scanning is done by the Charge Coupled Devices (CCD)camera?

56. Which of the following is not a geometric feature of an image?

57. In image enhancement, which of the following function is performed on the image?

58. Which part of the human eye acts as an aperture?

59. Which of the following is a color coordinating system used for TV. Receivers?

60. Edge detection in image analysis is used to_______.

61. Which of the following is not a model of image representation?

62. Which of the following are the perceptual attributes of color?

63. Which of the following statement is true?

64. By which of the following types of light is an object scanned in the scan-in method?

65. What would be the bandwidth requirement if we convert an analog video signal into a digital one?