Flashcards in Dynamic Range TEST Deck (14):
What is dynamic range?
*RATIO*of the largest to the smallest signal strength
dB relative measurement
aka: Number of choices - gray shades - gray mapping
What is threshold?
what is saturate signals?
the signal ______ the more it is processed
Compare the components to the dynamic range
understand the farther from the transducer the lower the dynamic range
FINISH SLIDE 6
COMPONENTS Dynamic range
receiver TCG 100-120dB
scan converter finish slide 6
What is the compression of dynamic range?
reduces the dynamic range
compressed to see data
sonographer adjusts compression
A receiver has a dynamic range of 110dB. the signal under goes 40dB of compression what is the dynamic range?
What happens if an image has a low or narrow dynamic range?
high contrast image
bistable - black and white
When would you want a low dynamic range in imaging?
What do you get with high dynamic range?
low contrast image
gray scale image
WIDE dynamic range
For general tissue imaging what kind of dynamic range do you want?
What are other names for dynamic range?
Dynamic range is based on ....