SAR interferogram filtering with 2D Vondrák filter

Xiaoli Ding, Zhiwei Li, Dawei Zheng, Cheng Huang, Weibao Zou

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

5 Citations (Scopus)

Abstract

Vondrák filter Is a unique technique for processing data that aims to balance between data "fidelity" and "smoothness". It can therefore preserve to certain extent the original attribute of observational data while at the same time smooth out the noise. 1D Vondrák filter has been widely used In such fields as astronomy, geophysics and geodynamics. We extend In this paper the commonly used 1D Vondrák filter Into 2D, and apply the filter thus obtained to filtering radar Interferograms. In doing this, the real and the Imaginary parts of a SAR interferogram are filtered separately, and the filtering of the interferometric phases Is achieved by calculating the argument (?) of the filtered interferogram. Experimental results obtained with simulated datasets show that the new filter can eliminate up to about 78% of the noise In the interferogram.
Original languageEnglish
Title of host publication25th Anniversary IGARSS 2005
Subtitle of host publicationIEEE International Geoscience and Remote Sensing Symposium
Pages4825-4828
Number of pages4
Volume7
DOIs
Publication statusPublished - 1 Dec 2005
Event2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005 - Seoul, Korea, Republic of
Duration: 25 Jul 200529 Jul 2005

Conference

Conference2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005
CountryKorea, Republic of
CitySeoul
Period25/07/0529/07/05

ASJC Scopus subject areas

  • Computer Science Applications
  • Earth and Planetary Sciences(all)

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