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Application of 3D Scanning with Computed Tomography Scanners

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Application of 3D Scanning with Computed Tomography Scanners

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Questions and Answers

What are the three common types of touch screen technologies discussed in the text?

Capacitive, infrared, resistive

How does a surface capacitive touch screen determine the point of touch?

By measuring the decrease in capacitance at the corners of the screen.

What type of touch screens allow multi-touch capabilities?

Projective capacitive touch screens

What is the advantage of capacitive touch screens over resistive screens in terms of image clarity?

Better image clarity, especially in strong sunlight Signup and view all the answers

What is the disadvantage of surface capacitive screens in terms of usability?

They only work with bare fingers or special stylus Signup and view all the answers

How do infrared touch screens detect touch input?

By using a grid of infrared light beams Signup and view all the answers

What technology is used to build up an image of a solid object through a series of very thin 'slices' in CT scanners?

Tomography technology Signup and view all the answers

How are the 'slices' that make up a representation of the 3D solid object in CT scanners built up?

By use of X-rays, radio frequencies, or gamma imaging Signup and view all the answers

What is stored as a digital image in the computer memory when using CT scanners?

Each 'slice' of the solid object Signup and view all the answers

What is represented digitally in the computer memory when using CT scanners?

The whole of the solid object Signup and view all the answers

What are the different names that tomographic scanners can have depending on how the image is formed?

CT Scanner, MRI, SPECT Signup and view all the answers

What does a touch screen allow the user to do?

Carry out the same functions as they would with a pointing device Signup and view all the answers