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 'read-only' memory that contains basic operating instructions that are almost never changing?






2. What was the earliest computer device called?






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






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






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






6. Scanners - mouse - keyboard - input memory disk drive - and paper printers are all forms of what?






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






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






9. Computer programs are called what?






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






11. What are devices that process information?






12. 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?






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






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






16. Which type of filter amplifies or deletes all but low frequencies - appears to reduce contrast - and is often used to remove high frequency nose.






17. A larger matrix provides ____ pixels.






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






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






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






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






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






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






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






25. A low contrast image has a ___ frequency.






26. What changes the pixel value by multiplication or division and controls image contrast?






27. Which type of filter amplifies or deletes all but the high frequencies - appears to increase contrast - and is useful in vascular imaging or digital mammo.






28. Binary systems operate with a ___-symbol language.






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






30. What modalities are array processors useful for?






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






32. Window width and contrast have an ____ relationship.






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






34. What can memory be transferred as?






35. What was the earliest computer device called?






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






37. What is required for collection of input information?






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






39. What is the name for a binary digit?






40. What are the two ways detectors acquire information?






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






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






43. Computer equipment is called what?






44. What are the two most common output devices?






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






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






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






48. 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?






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






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