Spatial resolution

Question 1

What is spatial resolution?

Answer 1

the sharpness of the structural edges in the image (the smallest detail that can be detected)

Question 2

What is the nyquist frequency?

Answer 2

the highest spatial resolution that can be recorded

Question 3

What controls spatial resolution?

Answer 3

pixel pitch

Question 4

What is pixel pitch?

Answer 4

the space between pixels

Question 5

How does pixel size influence spatial resolution?

Answer 5

smaller pixel size = higher spatial resolution

Question 6

How does OID influence spatial resolution?

Answer 6

increased OID = decreased spatial resolution

Question 7

How does SID influence spatial resolution?

Answer 7

decreased SID = decreased spatial resolution

Question 8

Why do OID and SID influence spatial resolution?

Answer 8

because both cause magnification and magnification decreases sharpness

Question 9

How does focal spot size influence spatial resolution?

Answer 9

increased focal spot size = decreased spatial resolution

increased focal spot size increases image blur which makes the image less sharp