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 are the two types of information computers use?






2. ____ circuits permit simultaneous transmission of information while ____ circuits transmit sequentially.






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






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






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






6. Noise is measured as what?






7. 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.






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






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






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






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






12. Resolution is controlled by what?






13. The computer either ____ or ____ selected frequencies during the filtering process.






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






15. What are the two ways detectors acquire information?






16. What can memory be transferred as?






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






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






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






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






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






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






23. There is a ___ relationship between subject contrast and acquired data contrast.






24. Computer programs are called what?






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






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






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






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






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






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






31. Computerized digital images are described in terms of what






32. What are devices that process information?






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






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






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






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






37. Computerized digital images are described in terms of what






38. What is the mathematical algorithm used to create all medical images?






39. 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.






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






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






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






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






44. 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?






45. What was the earliest computer device called?






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






47. Digitalization of analog information (increases / reduces) the quality and quantity of information?






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






49. Noise is ____ related to contrast.






50. Window width and contrast have an ____ relationship.






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