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 for an 8-bit word?






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






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






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






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






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






7. In medical imaging - each pixel value corresponds to a 3-D volume of tissue known as what?






8. What are the 3 classifications of digitized image filters?






9. What is the name for a binary digit?






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






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






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






13. 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?






14. The ____ is the heart of the computer while the ___ is the vessels.






15. Which type of information consists of collected facts?






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






17. When power is turned off - (ROM / RAM) is erased and (ROM / RAM) is maintained






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






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






20. Fluoroscopic noise mostly comes from what?






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






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






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






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






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






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






27. Computer equipment is called what?






28. Window width and contrast have an ____ relationship.






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






30. What are devices that process information?






31. Commercial units scan only 262.5 lines out of 525 in each pass thus producing ____ for diagnostic imaging.






32. 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?






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






34. A high contrast image has a ___ frequency.






35. What is the name for a binary digit?






36. Noise is measured as what?






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






38. 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?






39. When was ENIAC invented?






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






41. Noise is ____ related to contrast.






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






43. Increased noise = _____ image contrast.






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






45. What can memory be transferred as?






46. What are the two most common output devices?






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






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






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






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