Match page (Source Extraction)
The Match page of the
Source
Extraction configures source list matching for the
Extract Sources command. When extracting from an
image set, source list matching removes sources that pass all the
filtering criteria but are not located at the same coordinate in
every image of the image set. In other words, this phase
produces a final source list that includes only those objects that
match in every image. Only the coordinate is used as a matching
criterion and source differences such as intensity or shape are not
involved. The Tolerance and
Matching Region properties control
the area searched to establish a coordinate match at each object
location. Depending upon the application, you may or may not need
to register the images before using source matching.
When an image set is processed, these Properties
determine how the lists of detected objects are matched.
Matching Properties
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Matching Region
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Specifies the shape of the region used to
determine whether objects in each pair of images refers to the same
object. The tolerance determines the
size of the region.
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Tolerance
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The size of the region examined for object matching.
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Comparison with Differencing
This operation is the complement of the
Differencing operation, meaning that objects not
matched are differenced. However, this method gives a slightly
different result than the simple "set complement" because
Matching requires an object to be located in every image
whereas Differencing identifies sources that are not matched
in a subset of the entire image set.
Related Topics
Extract Sources command
Source
Extraction Properties
Mira Pro x64 User's Guide, Copyright Ⓒ 2023 Mirametrics, Inc. All
Rights Reserved.
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