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. A low contrast image has a ___ frequency.






2. If window width increases - image contrast will ____.






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






4. What is the random background information that does not contribute to the image quality?






5. 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?






6. What are the two types of information computers use?






7. Which computers handle data composed of definite quantities of current?






8. Window width and contrast have an ____ relationship.






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






10. What are devices that process information?






11. Modalities differ in bit depth that is available depending on the capabilities of what?






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






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






14. A high contrast image has a ___ frequency.






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






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






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






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






19. Noise is measured as what?






20. What can memory be transferred as?






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






22. What is the 'read-only' memory that contains basic operating instructions that are almost never changing?






23. What is the mathematical algorithm used to create all medical images?






24. What modalities are array processors useful for?






25. Modalities differ in bit depth that is available depending on the capabilities of what?






26. What is required for collection of input information?






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






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






29. Computerized digital images are described in terms of what






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






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






32. What is required for collection of input information?






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






34. Computer equipment is called what?






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






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






37. Extremely narrow window width requires the computer to ignore a ___ ____ of data outside the chosen range.






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






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






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






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






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






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






44. What type of memory storage devices are required for large amounts of data?






45. Window width and contrast have an ____ relationship.






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






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






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






49. Fluoroscopic noise mostly comes from what?






50. Increased noise = _____ image contrast.