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






2. Increased noise = _____ image contrast.






3. Computer equipment is called what?






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






5. When was ENIAC invented?






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






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






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






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






10. What are the two ways detectors acquire information?






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






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






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






14. Resolution is controlled by what?






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






16. What is the raw data to which a Fourier Transformation is applied to create the digital image?






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






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






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






20. Density and contrast of the digital image are controlled by varying the ____ ____ of each pixel.






21. Which type of filter amplifies or deletes all but a selected range or band of frequencies and is useful in the elimination of characteristic emission peaks?






22. The human visual range is ___ or fewer shades of gray.






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






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






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






26. Because the range of stored densities is so much wider than the visual range - any digital image is only a small part of the total data obtained - each image is a _____ on the total range of data.






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






28. Which type of information consists of collected facts?






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






30. 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?






31. 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?






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






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






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






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






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






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






38. If the window level increases - density will _____.






39. Computer programs are called what?






40. What type of scanning increases resolution but can't be used in real-time dynamic studies?






41. Density and contrast of the digital image are controlled by varying the ____ ____ of each pixel.






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






43. What does DICOM stand for?






44. What can memory be transferred as?






45. 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?






46. What are the two most common output devices?






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






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






49. 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?






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







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests