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The computer screen:
The standard 72-96 dpi screen resolution of today
limits the amount of image information that can be diplayed. It is
generally
anticipated that one of the main improvements within the next
generation of
computer operating systems is going to be a shift towards high
resolution
standards (200 dpi) and corresponding computer screens. This will
highly
improve basic tasks such as readability of screen text, and images
will
approach printed photographic quality. With a 21" monitor,
significantly more
visual information can then be provided on the screen than is seen
in one
HPF (High Power Field) through the oculars.
With an affordable current 1600 x 1200 desktop monitor (21") it is
already
possible to convey almost as much information as with a conventional light
microscope.The image viewing window is then for practical reasons
restricted
to about 1500 x 1100 pixels, and as the atlas of breast
histopathology was
scanned with a 0.26 um pixel size, an area of 0.113 mm2 (390 x 290
um) can
be displayed at the maximal screen zoom level (1 image pixel = 1
screen pixel).
This corresponds to almost a complete microscope 40x HPF (0.152
mm2).
With already existing (but expensive!) high-resolution monitors
(22", 3840x2400
pixels, 204 dpi) it is therefore possible to display almost 4 HPFs.
This would
be / is a clear benefit as compared to conventional microscopy.
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