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Time series interferogram analysis is an upgrade of the traditional 2/3/4-pass differential interferometry, and has been widely used to map ground deformation associated with urban subsidence, landslide, earthquake and so on. This paper analyzes some key steps in TS-DInSAR processing, including selection of high-coherent points, extraction of linear deformation, separation nonlinear deformation phase...
3D terrestrial laser scanning (TLS) appears in 1980s. As a new high-tech, TLS can fast obtain the 3D coordinates of objects on the ground surface through high-speed laser scanning. However, it is still an urgent problem that how to deal with the high density and unorganized point clouds, including reducing noise and modeling these mass data. The main purpose of this paper is to research how to reduce...
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