#Virtual #microscopy could be considered a sort of
“streaming on demand”
of image information in different zoom levels
and at different topographical regions of the original image.
The original file is at no time completely downloaded or locally stored.
The rate of data transmission rate depends on:
• the size of the smallest image subunit or “image tile”,
• the software used for image editing or rather for the segmentation into smallest picture subunits,
• the speed of the network and
• the performance of the terminal device
The microscopic scans are typically saved as so-called #image #pyramids.
In this process not only the high resolution image is saved but also smaller versions of the picture (similar to a pyramid)
in order to allow a later display without recalculations.
The figure shows an example of an image pyramid (in most cases “TIF-pyramid”), in which every smaller plane is always a quarter (sides: always half) of the prior plane.
Most manufacturers of microscope scanners, with some exceptions, follow this algorithm.
https://www.smartinmedia.com/virtual-microscopy/