WorksheetsDisplay & Imaging
Total questions: 10
Worksheet time: 5mins
a video display that is limited to black and white only, with no shades of gray is called
grayscale
binary
bistable
grayhound
Which electronic component is required for gray scale imaging ?
VCR
Non-interlaced display
computer memory
scan converter
Which of the following will provide scan converters will provide the LEAST spatial resolution ?
256x256 pixels
750x750 pixels
128x128 pixels
1000x1000pixels
how many gray shades can be represented by a group of
4 bits?
2
16
8
4
A pixel displays up to 3 gray shades simultaneously
True or False ?
True
False
Where does coded excitation take place?
Pulser
Receiver
PACS system
trasnducer
Which of the following is not true about spatial compounding ?
data is collected from different viewing angles
frame rates are reduced
shadowing artifact can be eliminated
can be performed with mechanical transducer
Images have higher resolution than what appears on the systems display
True or False ?
False
True
Which of the following is best described as an analog number ?
the number of people in the room
the number of stars in the sky
the number of tires in a car
the weight of a person
Spatial resolution does change in read magnification
True or false ?
True
False
