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. Binary systems operate with a ___-symbol language.






2. What is the name for a binary digit?






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






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






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






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






7. Computers operate from ____ ____ language.






8. Resolution is controlled by what?






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






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






11. Resolution is controlled by what?






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






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






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






16. Computer programs are called what?






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






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






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






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






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






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






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






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






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






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






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






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






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






30. What is accomplished by transforming the image into frequencies and making mathematical alteration to reproduce the image?






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






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






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






34. What 3 things were required prior to digital computer applications in medical imaging?






35. What does DICOM stand for?






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






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






38. What changes the pixel value by addition or subtraction and controls image density?






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






40. What modalities are array processors useful for?






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






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






43. What was the earliest computer device called?






44. A high contrast image has a ___ frequency.






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






46. Window width and contrast have an ____ relationship.






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






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






49. What is an image that has been converted into numerical values for transmission or processing?






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