Test your basic knowledge |

Digital Image Processing

Subject : engineering
Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. Digitalization of analog information (increases / reduces) the quality and quantity of information?






2. What is the measure of the differences between the data values referred to as?






3. Computer programs are called what?






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






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






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






7. What is the measure of the differences between the data values referred to as?






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






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






10. 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?






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






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






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






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






15. Window width and contrast have an ____ relationship.






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






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






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






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






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






21. What was the earliest computer device called?






22. What determines resolution?






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






24. 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?






25. 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.






26. Computerized digital images are described in terms of what






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






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






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






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






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






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






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






34. What modalities are array processors useful for?






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






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






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






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






39. What are the two ways detectors acquire information?






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






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






42. What can memory be transferred as?






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






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






45. What is required for collection of input information?






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






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






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






49. What are devices that process information?






50. Computer programs are called what?







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