Computer Graphics Quality Management Exam 2 (Chapter 3) Verified Questions & Answers 100% Correct

Computer Graphics Quality Management Exam 2 (Chapter 3) Verified Questions &

Answers 100% Correct

Which of the following terms best describes the amount of light that is emitted from or scattered

by a surface?

Photometry

Luminance

Illuminance

Optical density - ANSWER: Luminance



Which of the following terms is the unit most commonly used to measure luminance?

Lux

Nit

Foot-candle

Lumen - ANSWER: Nit



Which of the following terms best describes the ability of an imaging system to create separate

images of closely spaced high-contrast objects?

Screen speed

Spatial resolution

Contrast resolution

Quantum mottle - ANSWER: Spatial Resolution

, Which of the following terms also is referred to as the true-positive fraction?

Accuracy

Sensitivity

Specificity

None of the above - ANSWER: Sensitivity



A digital radiography flat panel detector element size will help to determine which of the

following?

Contrast resolution

Detective quantum efficiency

Spatial resolution

Dynamic range - ANSWER:



If the bit depth of a magnetic resonance imaging scanner is 12 bits, how many gray shades can

be present in the image?

1024

2048

4096

8192 - ANSWER: 4096



Detective quantum efficiency is a measure of which of the following?

Contrast resolution

Image noise