Recorded Detail Quiz
1) The primary film/screen unit of resolution is ______ _____ ___ ___________.
2) In digital imaging spatial resolution is determined by 3 things; matrix size, pixel size, and _______ _____ _____ _____.
3) T or F: Spatial frequency is one way to measure recorded detail in a digital system. A shorter wavelength is a high resolution as opposed to a long wavelength which is low resolution.
4) _______ _______ _______ is another way to measure resolution it measures the information lost between the patient and the image receptor. A perfect transmission of information would be 1.0
5) T or F: Recorded detail is one of 2 photographic properties of image quality.
6) ______ is background information that is picked up by the image receptor
7) _________ or unsharpness around the image can be mathematically calculated using what formula?
8) ________ is the best way to prevent voluntary motion.
9) ________ is the best way to prevent involuntary motion.
10) In this problem I will give you a parameter and you must say when it increases does it increase or decrease spatial resolution
A) SID
B) OID
C) FSS
Film Screen
1) Phosphor size
2) Layer thickness
3) Packing density
Answers
1) Line pairs per millimeter
2) Gray scale bit depth
3) True
4) Modulation Transfer Function
5) F, it is a geometric property
6) Noise
7) Penumbra p=(FSSxOID)/SOD
8) Communication
9) Fast Exposure Time
10) A) Increases
B) Decreases
C) Decreases
1) Decreases
2) Decreases
3) Increases
