Posted by
Mark Hiner-2 on
May 09, 2014; 4:40pm
URL: http://imagej.273.s1.nabble.com/Stitching-1-1-Release-tp5007668.html
Dear Stitching users,
You may have noticed that the Stitching plugins (Plugins > Stitching >
Pairwise stitching, and Plugins > Stitching > Grid/Collection stitching)
take a fairly significant amount of time to get through the fusion process.
Today, I am pleased to announce Stitching version 1.1 which features
greatly reduced fusion times, available now in Fiji (just run Help > Update
Fiji).
Briefly, the old fusion paradigm was to iterate through output image's
pixels and, at each position, check every input image to see if they
overlapped at that position. By pre-computing these contribution ranges at
the start of fusion, we can see significant performance improvements.
The actual speedup will depend on the number of images being stitched and
how much they overlap, but on a test dataset with ~150 images and 10%
overlap, the new fusion method was over an order of magnitude faster (80
seconds + ~10 seconds of pre-computation, down from 20 minutes with the
previous Stitching version).
We have done a number of tests comparing the output of the new plugin with
the previous Stitching version, and as far as we can tell the new results
are pixel-perfect matches with the old, so the quality of your data should
not be affected.
If you do run into any problems, errors, mis-stitches, etc... or have any
questions/comments about the Stitching plugin and its uses, please let us
know!
Happy stitching!
- Mark
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