Pannoramic 250 FLASH III 3.0.2 User’s Guide
5.2.1 Profile Settings panel
◦
Pre-scan + high-resolution –
creates a High-Resolution fast FL preview image of every
FOV within the selected area (in single layer DAPI, with an illumination time of 20ms) that
is displayed in the Profile Wizard window. Scanning process is initiated with a simple
PreScan, the located sample with auto threshold is selected, and finally, an HR PreScan is
launched.
•
Thresholding
The manually set threshold value is applied during scanning. The preview of the loaded slide
is displayed in the Preview window. The set value has effect on the preview image. If
threshold value is modified in the Microscope Controller preview window, that value is
automatically applied in the profile in the Profile Settings panel.
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Specimen threshold
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Manually set value:
This sets the sensitivity of the specimen detection. To set the desired
threshold value manually, change the setting in the
Specimen threshold level
selection
box in the range of 0-255. The default value is 212. Smaller values result in a more
sensitive scanning, meaning that more areas will be digitized, however, this may also
include specks or other imperfections of the slide. Greater values result in a less sensitive
scanning, but it is possible that some of the smaller specimen areas will not be digitized.
◦
Auto Threshold:
By clicking
the specimen will automatically be detected in the
preview image.
Caution!
Make sure that the detection result is acceptable for you. Otherwise, set the
threshold value manually or append missing areas with the help of
appropriate functions in the
Preview
window.
◦
Use marker with threshold
If the specimen cannot be identified as required for digitization, (for example, weak
contrast), it can help to encircle completely the specimen with a black marker pen. You
have to draw a full circle with the pen to enable the detection. Marker pen detection will
make specimen detection easier by limiting the scanned area. If this option is selected,
only the area encircled with a marker pen will be scanned. You can define the threshold
level by changing the threshold value in the
Use marker with threshold
selection box in
the range of 0-255. This sets the sensitivity of the specimen detection inside the marker
area. To set the desired threshold value manually, change the setting in the
Specimen
threshold
selection box in the range of 0-255. The default value is 105.
September 16, 2020 – Rev. 1
3DHISTECH Ltd.
80(156)