LSM 710 and LSM 780
CENTER SCREEN AREA / IMAGE CONTAINERS - …
Systems Topography
View
Carl
Zeiss
02/2010 M60-1-0025
e
209
•
Chose a
Filter
:
−
None
−
Median
−
Low pass
−
High pass
In case of
Low
and
High
pass,
Gauss
and
Butterworth
FFT filters can be chosen below. This function
performs a Fast Fourier Transformation (FFT) in the frequency range, applies highpass or lowpass filtering
in the frequency range and performs the inverse FFT. Additional
Cut off
and
Degree
should be defined.
The
Cut off
frequencies ranges from 1/1000 of the X dimension of the stack to four times of the X
dimension of the stack. The dimensions of filtering are given in units of µm. Select a position of the
Degree
slider. The filter functions can be calculated from 1
st
order to 5
th
order accuracy.
Changing the topography geometry:
Fit
button:
None
Plane:
The topography is tilted in such a way that the mean deviation value plane is calculated.
Sphere:
A spherical form is eliminated; determination of micro roughness on spherical surfaces can be
performed.
Cylinder:
A cylinder form is eliminated; determination of micro roughness on cylindrical surfaces can
be performed.
You can display the exact values of the
Cylinder / Sphere
fit by ticking the check box
Processing
in the
Measure
block.
A
3-point-tilt
is available using Height map or Maximum intensity with a right mouse click within the
image.
Inverse
check box:
−
Inverse surface. Depths change to heights, and vice versa.
Fill holes
check box:
−
Intensity of a missing pixel of a hole has to be interpolated by the distance-weighted intensity of all
surrounding pixels.
−
Fill hole algorithm is optimized for short calculation times.
−
Click on
Tilt…
and change
Pitch
and
Yaw
manually.