SARPROZ © | leewoneung | Activity https://www.sarproz.com/members/leewoneung/activity/ Activity feed for leewoneung. Wed, 08 Apr 2026 19:29:48 -0500 https://buddypress.org/?v= en-US 30 hourly 2 d43624c0c61b6c7891c6aa82fac42833 leewoneung started the topic Why create a TIN during the PS-InSAR process? in the forum Sarproz Forum https://www.sarproz.com/groups/sarproz-group/forum/topic/why-create-a-tin-during-the-ps-insar-process/ Thu, 17 May 2018 02:05:02 -0500 Permanent scatterers are selected in the PS-InSAR process

Why create a TIN with a selected permanent scatterers?

I think it seems that the TIN does not calculate the surface displacements between the Permanent scatterers through interpolation.

And what is the strength of the TIN ?

What is the difference depending on the strength of the TIN?

]]> 6503ecfc910cbe3c0b88f48dcdad904c leewoneung replied to the topic Differences and Correlation between Cumulative Displacement and final value. in the forum Sarproz Forum https://www.sarproz.com/groups/sarproz-group/forum/topic/differences-and-correlation-between-cumulative-displacement-and-final-value/#post-2868 Wed, 14 Mar 2018 07:45:19 -0500 I would like to see the settlement of PS points over time. So is it better to use a time-series analysis rather than a cumulative displacement??

]]> 3c9820d138884fa504b0be4d589e0bbc leewoneung started the topic Differences and Correlation between Cumulative Displacement and final value. in the forum Sarproz Forum https://www.sarproz.com/groups/sarproz-group/forum/topic/differences-and-correlation-between-cumulative-displacement-and-final-value/ Wed, 14 Mar 2018 01:45:58 -0500 By setting the smart value to 5 and executing the time series module, the settlement value of PS-InSAR was obtained as the excel data.
However, there are many differences from the last value of the time series and the cumulative displacement.
I know that cumulative displacement analyzes the first and last images using a specific module.
I used 21…[Read more]

]]> c0d9b393e32d9c08c1019829b44861a6 leewoneung replied to the topic The displacement value comes out "increase" in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/the-displacement-value-comes-out-increase-2/#post-2545 Tue, 24 Oct 2017 02:28:53 -0500 oh sorry, I have some mistake that is my question.

First I had choosed spatial coherence > 0.7 and I completed a series of preliminary works.
And I choosed 1-Sigma/mu Index ,So I completed a series of PSInSAR works.

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First I had choosed 1-Sigma/mu Index > 0.7 and I completed a series of…[Read more]

]]> 28ef3bb5e594401889813918808de522 leewoneung started the topic The displacement value comes out "increase" in the forum Sarproz Forum https://www.sarproz.com/groups/sarproz-group/forum/topic/the-displacement-value-comes-out-increase-2/ Tue, 24 Oct 2017 01:56:02 -0500 I worked PSInSAR Process.
First I had choosed spatial coherence > 0.7 and I completed a series of preliminary works.
And I choosed 1-Sigma/mu Index ,So I completed a series of PSInSAR works.
I Wanted to Decrease Values That are displacement. but I getted Increase Values.
My Study area is railway so I think that place should be subsidence.

]]> 9291f680ac9558893d2c18313d1afad7 leewoneung started the topic cumulative displacement in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/cumulative-displacement/ Wed, 16 Aug 2017 08:48:51 -0500 I unchecked Linear processing when I did ‘time series processing’ and ‘Sparse point processing’ too.
and then I tried cumulative displacement,
but I couldn’t get the cumulative displacement when ‘LOAD MASK’ step.
Only “0” when I checked cumulative displacement in Load mask.
How can I get the cumulative displacment??

]]> ada9e582c544007408b8be867d7590a2 leewoneung replied to the topic cumulative displacement. Load mask error in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/cumulative-displacement-load-mask-error/#post-2351 Tue, 25 Jul 2017 08:33:13 -0500 3. if the cumulative displacement CumDisp.mat file is not there, it means it was not saved. Is the velocity there? If the velocity is there and the cumulative displacement not, it means you estimated a linear model, so, the cumulative displacement was not produced. To know to cumulative displacement, just multiply the velocity by the observation…[Read more]

]]> 47e21173eeff288b1c975ab69dffa159 leewoneung started the topic cumulative displacement. Load mask error in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/cumulative-displacement-load-mask-error/ Tue, 25 Jul 2017 07:20:16 -0500 I can’t select cumulative displacement at Load mask.
If I select cumulative displacement, I have only 0 selected points.
before the select cumulative displacement at Load mask, I seleceted Amp. Stab. Index 1-Sigma/Mu, and Temporal coherence. and I finished APS estimation and Sparse Points Processing. I checked Linear Trend and Height estimate at…[Read more]

]]> 38dda8d2fbea7376c2b7b701e95d49b6 leewoneung started the topic resampling kml mapping in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/resampling-kml-mapping/ Tue, 25 Jul 2017 06:48:31 -0500 at time series module, I want to polygon or raster style map.
but scatter map is only point map, and resampling map is No blank(The No data is calculated with a value of zero, I don’t want it, I wanna just blank)

I want to make the maps likes Beijing Cumulative Displacement detected by two parallel TSX tracks and Los Angeles Cumulative…[Read more]

]]> 463622ba50d97864407cf1ea18ec5e2a leewoneung became a registered member https://www.sarproz.com/activity/p/1762/ Tue, 25 Jul 2017 05:32:46 -0500 0