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 measure of the differences between the data values referred to as?






2. What is high-pass filtering also called?






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






4. Computer programs are called what?






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






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






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






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






9. 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?






10. What determines resolution?






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






12. Window width and contrast have an ____ relationship.






13. Computerized digital images are described in terms of what






14. What determines resolution?






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






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






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






18. What are the two ways detectors acquire information?






19. Noise is ____ related to contrast.






20. Fluoroscopic noise mostly comes from what?






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






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






23. Fluoroscopic noise mostly comes from what?






24. A high S/N indicates ___ noise in the image.






25. Computer equipment is called what?






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






27. 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?






28. What modalities are array processors useful for?






29. Increased noise = _____ image contrast.






30. A low contrast image has a ___ frequency.






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






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






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






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






35. Computer programs are called what?






36. Noise is measured as what?






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






38. When was ENIAC invented?






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






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






41. What is the name for a binary digit?






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






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






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






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






46. 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?






47. Which type of information consists of collected facts?






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






49. 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.






50. Resolution is controlled by what?