Test your basic knowledge |

Digital Image Processing

Subject : engineering
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What is the name of the 'modern electronic computer'?






2. What can memory be transferred as?






3. What are the two ways detectors acquire information?






4. Extremely wide window width requires the computer to ignore ___ contrast differences in order to display the entire range of data.






5. Changes in window width are sometimes called gray scale ____ or ____.






6. What can memory be transferred as?






7. What is the frequency response of the incoming signal called?






8. Which memory replaces new information with the old; can change?






9. What is the raw data to which a Fourier Transformation is applied to create the digital image?






10. What provides specific instructions for calculations and sequential steps to be followed?






11. The human visual range is ___ or fewer shades of gray.






12. A larger matrix provides ____ pixels.






13. Electrical connections between the CPU and the other components rung along a system of series or parallel conductors called what?






14. What does a 1 in binary code stand for?






15. Noise is ____ related to contrast.






16. Fluoroscopic noise mostly comes from what?






17. What is the system of conductors that connects the various components of a computer system and permits the CPU to accept inputs from any point along the conductor?






18. There is a ___ relationship between subject contrast and acquired data contrast.






19. Electrical connections between the CPU and the other components rung along a system of series or parallel conductors called what?






20. Which type of filter amplifies or deletes all but low frequencies - appears to reduce contrast - and is often used to remove high frequency nose.






21. Each pixel is capable of representing a wide range of what?






22. What type of memory storage device is inexpensive and the data is stored serially (difficult to access)?






23. In what time period did mathematical theory and solid-state electronics come out?






24. What is the measure of the differences between the data values referred to as?






25. What is the 'noisiest' component of a digital system?






26. What is the raw data to which a Fourier Transformation is applied to create the digital image?






27. Digital detectors are capable of producing ______ shades of gray.






28. The _____ the matrix size - the better the resolution.






29. Each box of an image matrix will display a ____ ____ which can be transformed into a visual brightness or density level.






30. Noise is ____ related to contrast.






31. A __ _____ disk will store over 10000000 bytes of information.






32. When subject contrast is high - the acquired data contrast will be ____.






33. What are devices such as keyboard - touch screen monitors - and voice-activation that you put into or connect to a computer?






34. A high contrast image has a ___ frequency.






35. What is the name of the 'modern electronic computer'?






36. In what time period did microchip technology come out?






37. What directs information to and from various parts of the computer?






38. What is critical to how fast the computer system can function?






39. Which type of filter amplifies or deletes all but a selected range or band of frequencies and is useful in the elimination of characteristic emission peaks?






40. Which type of filter amplifies or deletes all but the high frequencies - appears to increase contrast - and is useful in vascular imaging or digital mammo.






41. What is the system of conductors that connects the various components of a computer system and permits the CPU to accept inputs from any point along the conductor?






42. Binary systems operate with a ___-symbol language.






43. What changes the pixel value by multiplication or division and controls image contrast?






44. In what time period did mathematical theory and solid-state electronics come out?






45. Computerized digital images are described in terms of what






46. ____ circuits permit simultaneous transmission of information while ____ circuits transmit sequentially.






47. What type of scanning increases resolution but can't be used in real-time dynamic studies?






48. Because electrical currents are understood as being either on or off - the binary system consists of information recorded as either a _ for off or a _ for on.






49. DICOM imaging now includes compatibility via a database system that includes linage of the patient images with the patient's EMR. This database system is called what?






50. What changes the pixel value by multiplication or division and controls image contrast?







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