CT

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Author:
Anonymous
ID:
36716
Filename:
CT
Updated:
2010-09-22 20:38:34
Tags:
CT
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Description:
CT TEST 1
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  1. Computer hardware consists of what?
    control unit, keyboard and mouse, display monitor and disk
  2. Which of the following is used as the host computer in CT?
    minicomputer
  3. the logical step in digitalizing a picture are?
    scanning, sampling and quantization
  4. the division of a picture into small square regions called pixels are referred to as?
    scanning
  5. A matrix?
    consists of rows and columns, contains pixels, can be used to provide an "address" for a pixel within it
  6. T/F: Two important characteristic of the computers used in CT are large storage capacity and being fast and efficient?
    true
  7. In digital image processing, a pixel is ?
    a picture element
  8. In quantization?
    each pixel is assigned an integer (o, a positive or negative number called a gray scale)
  9. what is associated with analog quantities?
    speed, pressure, temp
  10. what is used in the conversion from an analog signal to a digital signal?
    ADC
  11. Image digitization is done by?
    digitizer
  12. A 128 x 128 matrix would have how many pixels?
    16, 384
  13. During quantization, the value

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