Search found 4 matches

by wharfbanger
Tue Feb 19, 2019 5:59 pm
Forum: Questions
Topic: Subsidence monitoring - what are the pros/cons?
Replies: 0
Views: 7048

Subsidence monitoring - what are the pros/cons?

Dear All, I have a general question regarding the practicalities of a ground subsidence monitoring program, using CloudCompare (paired with aerial photogrammetry), versus InSAR (say Sentinal InSAR data). My experience so far is with CloudCompare and point clouds from UAV photogrammetry (about 1km2 a...
by wharfbanger
Thu Dec 06, 2018 11:22 pm
Forum: Questions
Topic: Basic theory
Replies: 4
Views: 2456

Re: Basic theory

Thank you Daniel.

That makes sense to me.

Best,
Mark
by wharfbanger
Thu Dec 06, 2018 7:33 pm
Forum: Questions
Topic: Basic theory
Replies: 4
Views: 2456

Re: Basic theory

Hi Daniel, Thank you so much for your reply. However I am a little confused by an apparent paradox. For example, I have two point clouds of a town (before and after subsidence). Subsidence is suspected to be forming a circular topographic basin in the central town (say 75% of the point cloud surface...
by wharfbanger
Thu Oct 25, 2018 4:23 pm
Forum: Questions
Topic: Basic theory
Replies: 4
Views: 2456

Basic theory

Hello, I am new to CloudCompare and have a basic question. I am using CloudCompare for change detection (vegetation, subsidence) using a time series of aerial survey photogrammetry point clouds. My understanding is that the fine registration function aligns two clouds in the X and Y. Z is not aligne...