Utilizing multi-temporal aerial images for land subsidence detection

Hsiao Yun Lin, Chi Hang Iam, Yi-Hsing Tseng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Land subsidence may lead to riverine or coastal floods and decline bearing capacity of soil. Precise leveling surveys and monitoring well settings are the common methods for land subsidence monitoring. However these surveying methods are point based observations which are hard to show regional elevation changes. This study is intent to obtain regional elevation changes by using multi-temporal aerial images. Combined with GPS and previous elevation surveying data, the exterior orientation of the images were solved the bundle adjustment of aerial triangulation. In order to reduce the effects of buildings, vegetations and other ground objects, a filter was applied to obtain DEMs, which are suitable to derive the elevation changes in this region. Historical regional elevation changes can be derived by using multi-temporal DEMs obtained from the aerial images acquired in past.

Original languageEnglish
Title of host publication30th Asian Conference on Remote Sensing 2009, ACRS 2009
Pages1704-1709
Number of pages6
Publication statusPublished - 2009 Dec 1
Event30th Asian Conference on Remote Sensing 2009, ACRS 2009 - Beijing, China
Duration: 2009 Oct 182009 Oct 23

Publication series

Name30th Asian Conference on Remote Sensing 2009, ACRS 2009
Volume3

Other

Other30th Asian Conference on Remote Sensing 2009, ACRS 2009
CountryChina
CityBeijing
Period09-10-1809-10-23

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

Fingerprint Dive into the research topics of 'Utilizing multi-temporal aerial images for land subsidence detection'. Together they form a unique fingerprint.

Cite this