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 a square series of boxes that gives form to the image?






2. It is important that the radiographer understand anatomy from different perspectives due to the methods of digital processing and image information? What are the 3 perspectives?






3. Which type of information consists of collected facts?






4. Computer memory is often rated in terms of total ____ memory.






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






6. A low contrast image has a ___ frequency.






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






8. What was the earliest computer device called?






9. Noise is ____ related to contrast.






10. What determines resolution?






11. What is the equation for determining gray scale bit depth?






12. Which computers handle data composed of continuously varying electrical currents?






13. Which memory can only be extracted without alteration; cannot change?






14. The quality of the data acquired from the IR is measured by what three data characteristics?






15. What does a 0 in binary code stand for?






16. What is an individual matrix box or picture element?






17. What is required for collection of input information?






18. What does a 0 in binary code stand for?






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






20. Scanners - mouse - keyboard - input memory disk drive - and paper printers are all forms of what?






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






22. Computers operate from ____ ____ language.






23. Computer programs are called what?






24. What is the 'random-access' memory that usually functions as temporary storage for programming and operating instructions during use and is constantly changed/?






25. A larger matrix provides ____ pixels.






26. Increased noise = _____ image contrast.






27. Medical imaging is often achieved from information that has been processed by what?






28. What is the name for a binary digit?






29. What is a square series of boxes that gives form to the image?






30. Noise is measured as what?






31. What is the 'heart' of every computer?






32. All medical imaging is achieved with which type of computers?






33. The quality of the data acquired from the IR is measured by what three data characteristics?






34. The number of shades of gray is determined by what?






35. What is the 'heart' of every computer?






36. What is an individual matrix box or picture element?






37. Computerized digital images are described in terms of what






38. Resolution is controlled by what?






39. What is the information stored as magnetic variations referred to as?






40. What is the primary limitation with the resolution on digital images?






41. Computers operate from ____ ____ language.






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






43. Digitalization of analog information (increases / reduces) the quality and quantity of information?






44. What are the two ways detectors acquire information?






45. What is the information stored as magnetic variations referred to as?






46. Around what time did digital computerization come out for CT and US?






47. What is required for collection of input information?






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






49. What type of scanning increases resolution slightly by scanning all 525 lines in order?






50. What is the name for an 8-bit word?