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 determines resolution?






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






3. Which type of information consists of operating instructions?






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






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






6. Computers operate from ____ ____ language.






7. What is a specialized computer that functions as a peripheral and uses CPU memory to perform mathematical operations at extremely high speed?






8. Noise is measured as what?






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






10. Computer equipment is called what?






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






12. Who or What is responsible for density changes on a digital image? On a manual image






13. What is required for collection of input information?






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






15. 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.






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






17. What are the two most common output devices?






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






19. The computer either ____ or ____ selected frequencies during the filtering process.






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






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






22. What are the two ways detectors acquire information?






23. What is the digital standard for imaging that is designed to ensure that all equipment fro all manufacturers who choose to adhere to the standard are speaking the same computer language?






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






25. Resolution is controlled by what?






26. Commercial systems often have a S/N of ____ but the HR systems used in digital fluoro have a S/N between ________.






27. When detectors acquire their information by ____ they are receiving info from a specific area.






28. What permit input/output of information to or from the CPU?






29. What is the name for a binary digit?






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






31. Resolution is controlled by what?






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






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






34. Which type of information consists of collected facts?






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






36. Window width and contrast have an ____ relationship.






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






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






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






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






41. What are devices that process information?






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






43. What is the process used in low-pass filtering that is accomplished by averaging adjacent pixels values?






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






45. When detectors acquire their information through ____ they are receiving all the info at once.






46. What permit input/output of information to or from the CPU?






47. Increased noise = _____ image contrast.






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






49. A high contrast image has a ___ frequency.






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