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A digital representation of a number can achieve only specif…

A digital representation of a number can achieve only specific fixed values.

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Postprocessing of image data occurs after the data has been…

Postprocessing of image data occurs after the data has been stored in the scan converter.

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Two digital scan converters are undergoing evaluation. Syste…

Two digital scan converters are undergoing evaluation. System A has 1,000,000 pixels and the picture size is 100 square inches. System B has an image size of 10 square inches composed of 250,000 pixels. Which image is more likely to display very small details?

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The greater the number of bits assigned to each pixel of a d…

The greater the number of bits assigned to each pixel of a digital image, the greater the number of shades of gray the image has.

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Which one of the following doesn’t belong in the group below…

Which one of the following doesn’t belong in the group below?

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For digital image information to be displayed on a conventio…

For digital image information to be displayed on a conventional television screen, the data must be processed by a digital to analog converter

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The diameter of a disc shaped, unfocused piezo electric crys…

The diameter of a disc shaped, unfocused piezo electric crystal is 1 cm. what is the best estimate for the minimum lateral resolution of the ultrasound system?

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Two imaging systems produce acoustic pulses; one pulse is 0….

Two imaging systems produce acoustic pulses; one pulse is 0.4 µsec long and the other is 0.2 µsec long. Which is most likely to provide the best temporal resolution

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The lower the numerical value of the longitudinal resolution…

The lower the numerical value of the longitudinal resolution, the worse the picture.

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What is a typical pulser output voltage that excites a piezo…

What is a typical pulser output voltage that excites a piezoelectric crystal?

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