Font size
WorksheetsDigital Imaging
Total questions: 10
Worksheet time: 4mins
The mathematical formula used to construct a digital image is called:
histogram
algorithm
matrix
post processing enhancement
Detective Quantum Efficiency (DQE) is the measure of x-ray absorption efficiency?
true
false
which is directly linked to exposure creep?
mAs
brightness
wide exposure latitude
contrast
typical range of EXI numbers are?
800 - 200
100 - 700
200 - 800
700 - 100
an image with bit depth of 12 has ___ shades of gray?
102
12
256
4096
contrast resolution is limited by Signal to Noise Ratio?
true
false
DR image acquisition methods include
compute radiography
flat panel direct capture detectors
charged coupled devices
all of the above
Charged -coupled device (CCD) is classfied as a flat-panel?
true
false
Amorphous Selenium x-ray detector provide ______________?
low spatial resolution
high spatial resolution
poor spatial resolution
acceptable spatial resolution
how many elements do you in first image?
bit depth
pixel
voxel
matrix
