CHEETAH Hardware User’s Manual
Imperx, Inc.
Rev. 1.6
6421 Congress Ave.
8/26/2016
Boca Raton, FL 33487
+1 (561) 989-0006
53 of 121
2.14.2 Dynamic Pixel Correction
Dynamic pixel correction works without preloaded pixel maps. When this option
is enabled, the camera determines which pixel needs correction and performs the
correction automatically. Static and Dynamic “Defective Pixel Correction” and
“Hot Pixel Correction” can be enabled independently or simultaneously. The
Dynamic Threshold can be set to have any value between 0 to 4096 (12-bit)
counts. This threshold determines how much a pixel can deviate from
neighboring pixels (either brighter or darker) before a pixel is considered to be
defective and correction is applied to this pixel.
2.15
FLAT FIELD AND FPN CORRECTION
The camera provides a factory installed flat field correction algorithm to correct
some of the image sensor non-uniformity and the camera also employs an
algorithm to correct the fixed pattern noise within the image sensor. The user also
upload a “User FFC Table”. The user can disable both the FFC and FPN
corrections, if desired.
2.16
CAMERA INTERFACE
2.16.1 Status LED
The camera has a dual red-green LED, located on the back panel. The LED color
and light pattern indicate the camera status and mode of operation:
GREEN
is steady ON
– Normal operation. The user is expected to see a normal
image coming out of the camera.
GREEN
blinks with frequency ~ 0.5 Hz
– indicates trigger is enabled.
Yellow
is steady ON
– Test mode enabled.
LED is OFF
– Power not present error. The camera has no power or indicates a
camera power supply failure. A faulty external AC adapter could also cause this.
To restore the camera operation, re-power the camera and load the factory
settings. If the LED is still “OFF”, please contact the factory for RMA.
2.16.2 Temperature Monitor
The camera has a built in temperature sensor which monitors the internal camera
temperature. The sensor is placed on the hottest spot in the camera. The internal