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[gnuastro-devel] [task #14980] Max-trees to grow true clumps


From: Mohammad Akhlaghi
Subject: [gnuastro-devel] [task #14980] Max-trees to grow true clumps
Date: Sun, 29 Jul 2018 17:41:10 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:61.0) Gecko/20100101 Firefox/61.0

Follow-up Comment #1, task #14980 (project gnuastro):

As a complement to the main task description, this task is about how the true
peaks are "grown", not about detection (separating astronomical objects from
the background) or finding true peaks. 

During the first annual SUNDIAL meeting
<https://www.astro.rug.nl/~sundial/Annual_meeting.html>, we done some tests
comparing NoiseChisel+Segment to MTObjects, and the results are available in
the attached slides. So at least on this dataset, and with these versions of
the two softwares (most recent as of the meeting), NoiseChisel does better at
detection of extended low surface brightness signal and also the completeness
of the true peaks it finds.

As described in the main task definition (previous post in this task), the
thing we should test in Segment to (hopefully) improve it is how true peaks
are "grown" to cover the full detection. The current growth strategy is too
simplistic and can be greatly improved.

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