STEPWISE APPROACH TO INSAR PROCESSING OF MULTITEMPORAL DATASETS

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STEPWISE APPROACH TO INSAR PROCESSING OF
MULTITEMPORAL DATASETS

• A. Refice(1), F. Bovenga(2), R. Nutricato(2)

(1)ISSIA-CNR, Bari (Italy), (E-mail
refice_at_ba.issia.cnr.it) (2)Dipartimento
Interateneo di Fisica, Politecnico di Bari
(Italy), (E-mail rnutric_at_tin.it,
fabio.bovenga_at_ba.infn.it)
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Summary

• Various multi-temporal DInSAR processing
  techniques require accurate and automated
  co-registration of long series of images
• Accurate co-registration is hindered by low
  coherence conditions, which worsen with
  increasing spatial and temporal baselines
• close image pairs should be coregistered
• An MST approach is proposed to determine the
  connection tree for the image stack
• Different choices of the distance measure lead to
  different MST trees maximization of expected
  coherence
• Examples with different assumptions about the
  distance function are shown