Dalsa Piranha ES Series, User Manual

Page: 93 / 106

Piranha ES-xx User Manual
Teledyne DALSA 03-032-20070-02
93
Mnemonic Syntax Parameters Description
cam era link m od e
clm
m
Sets the Cam era Link configu ration,
nu m ber of Cam era Link tap s, and d ata
bit d ep th.
2
: Base configu ration, 2 tap s, 8 bit
ou tp u t
3
: Base configu ration, 2 tap s, 12 bit
ou tp u t
15
: Med iu m configu ration, 4 tap s, 8 bit
ou tp u t
16
: Med iu m configu ration, 4 tap s, 12 bit
ou tp u t
21
: Fu ll configu ration, 8 tap s, 8 bit
ou tp u t
Refer to section 3.4.2 Setting the Cam era
Link Mod e for d etails.
calcu late PRN U
algorithm
cpa
i i
Perform s PRN U calibration accord ing
to the selected algorithm .
The first p aram eter is the algorithm
w here
i
is:
1
= This algorithm first ad ju sts each
tap’s analog gain so that 8-13% of pixels
w ithin a tap are above the v alu e
sp ecified in the target valu e p aram eter.
PRN U calibration then occu rs u sing the
p eak p ixel in the region of interest.
(Id entical to
ccp
)
2
= Calcu lates the PRN U coefficients
u sing the entered target valu e as show n
below :
PRNU Coefficient =
Target
(AVG Pixel Value) - (FPN+ value) sdo
The
calcu lation is p erform ed for all sensor
p ixels bu t w arnings are only ap p lied to
p ixels in the region of interest. This
algorithm is u sefu l for achieving
u niform ou tp u t across m u ltip le
cam eras.
3
= This algorithm inclu d es an analog
gain ad ju stm ent p rior to PRN U
calibration. Analog gain is first ad ju sted
so that the p eak p ixel valu e in tap ’s ROI
is w ithin 97 to 99% of the sp ecified
target valu e. It then calcu lates the
PRN U coefficients u sing the target
valu e as show n below :
PRNU Coefficient =
Target
(AVG Pixel Value ) - (FPN + value)
sdo
i i
i