Difference between revisions of "Manta G032 camera measurements"
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:<math>P_{x,y}[t]=g \left(I_{x,y}[t]+R_{x,y}[t]+D_{x,y}(t)) \right)</math>, | :<math>P_{x,y}[t]=g \left(I_{x,y}[t]+R_{x,y}[t]+D_{x,y}(t)) \right)</math>, | ||
where | where | ||
| − | * <math>I_{x,y}[t]</math> is the number of | + | * <math>I_{x,y}[t]</math> is the number of photoelectrons that are generated during interval <math>t</math>, |
* <math>R_{x,y}[t]</math> is the read noise during time interval <math>t</math>, | * <math>R_{x,y}[t]</math> is the read noise during time interval <math>t</math>, | ||
* and <math>D_{x,y}[t] is the number of dark current electrons generated during time interval <math>t</math> | * and <math>D_{x,y}[t] is the number of dark current electrons generated during time interval <math>t</math> | ||
Revision as of 18:49, 22 September 2015
Overview
This page contains data from the demo I did in lecture on 9/22/2015 of the Manta G032 camera.
The point was to measure the gain, dark noise, and read noise of the Manta G032 cameras we use in lab.
Measurement procedure
- Light source directed at the camera so to produce a range of intensities
- 100 frame movie recorded at 20 FPS with an exposure of 150 μs.
- 100 frame dark movie recorded with identical settings.
Calculations
The expression for the value read from pixel $ x,y $ during time interval $ t $ is:
- $ P_{x,y}[t]=g \left(I_{x,y}[t]+R_{x,y}[t]+D_{x,y}(t)) \right) $,
where
- $ I_{x,y}[t] $ is the number of photoelectrons that are generated during interval $ t $,
- $ R_{x,y}[t] $ is the read noise during time interval $ t $,
- and $ D_{x,y}[t] is the number of dark current electrons generated during time interval <math>t $
