SARPROZ © | stevexu | Activity https://www.sarproz.com/members/stevexu/activity/ Activity feed for stevexu. Fri, 03 Apr 2026 18:31:57 -0500 https://buddypress.org/?v= en-US 30 hourly 2 e24366fd87af75afb718fda14108fe10 stevexu started the topic using RCS PSC threshold in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/using-rcs-psc-threshold/ Sat, 24 Oct 2015 12:16:56 -0500 Did anyone know about the Radar Cross Section Threshold? What is the typical value for reasonable PSC? I am using TSX 3 meter SM data

]]> ca95d8151c41aa1928aceaa9085a4591 stevexu replied to the topic SPP geocoding export in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/spp-geocoding-export/#post-1186 Mon, 31 Aug 2015 12:55:47 -0500 Thanks for your suggestion. I am trying, ‘Height’ here mean the accumulative height, doesn’t it?

]]> e76ee449f939c79e3b7505f0ad276aa2 stevexu started the topic SPP geocoding export in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/spp-geocoding-export/ Mon, 31 Aug 2015 11:17:32 -0500 The result estimated by linear trend is not so impressive. I shall consider use the smart5, but how to make it export the geocoded SPP displayed on the Googleearth? Last time I directly use the smart5, system give an error on the miss of inupt Vel.mat.

The result does not show the main subsidence in Xiaodian area, which was eager to detected.

]]> ac30f2c7b67b1017ba846be030fba016 stevexu replied to the topic Concerning parellel ool numbers in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/concerning-parellel-ool-numbers/#post-1175 Fri, 28 Aug 2015 07:28:27 -0500 I think I made a mistake, it was the logical cores…

]]> c52d2dcd7a19603705b7a0eeeb5d2b68 stevexu started the topic Concerning parellel ool numbers in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/concerning-parellel-ool-numbers/ Fri, 28 Aug 2015 02:57:58 -0500 I change to a 8 core machine, why the SARproz can only find 4 local workers?

]]> ce7ac1c7980186debed86ed69d39ec45 stevexu started the topic Generic question about PS preliminary selection in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/generic-question-about-ps-preliminary-selection/ Wed, 26 Aug 2015 11:55:23 -0500 I do got this quest for quite a long time, as we use the typical solution of selecting PS candidates by choosing

1.Amp Stab. 1-sig/mu, which is a modified version of amplitude dispersion index. What about other choices?

2.RCS, is that for the ratio of clutter and signal?

3.Temp-phase, is that for the phase dispersion index?

4.Amp Stab…[Read more]

]]> cad1be34d2d2c52685e23ed56dbbc3d3 stevexu replied to the topic Audio output concerning error in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/audio-output-concerning-error/#post-1167 Wed, 26 Aug 2015 10:01:13 -0500 I am running with your suggestion, it will take quite a while, hope it works.

]]> 32af3c0bcbf1876e714c0e0a3c695c4b stevexu started the topic Audio output concerning error in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/audio-output-concerning-error/ Wed, 26 Aug 2015 03:37:53 -0500 I do not know why, but soft is plagued by some audio output error, and following by some errors of simulating noise statistics. Why could be the underlying causes, how could I solve it?

]]> 84388111ea9c02e3bea795b42b97de08 stevexu replied to the topic Concerning the results exporting in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/concerning-the-results-exporting/#post-1130 Fri, 21 Aug 2015 06:33:30 -0500 I know the reason, it seems SARproz does not calculate the deformation velocity if you use non-linear estimation mode(as smart 5). I rerun the APS step and the SPP step using linear estimation, now the result is obtained.

]]> 080d79bfcd6c6896a214e2050ef00e78 stevexu replied to the topic Concerning the results exporting in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/concerning-the-results-exporting/#post-1126 Fri, 21 Aug 2015 02:14:23 -0500 If you are right, then why the velocity was not generated after the step of SPP processing was done? I rerun the SPP step, still not result.

]]> df2025698493e06ce2e172a104db8788 stevexu replied to the topic Concerning the results exporting in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/concerning-the-results-exporting/#post-1124 Thu, 20 Aug 2015 12:55:14 -0500 I rerun every single step since co-registration, though time consuming, still no result. It seems the vel.mat is not generated in the APS step. Why does it happen?

]]> 7b9e0a0fb4388b5cf90a6ccc6ce1d981 stevexu replied to the topic Concerning the results exporting in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/concerning-the-results-exporting/#post-1122 Thu, 20 Aug 2015 09:44:14 -0500 Sorry forgot to compress the file

]]> 213b62d2126abd10e6de01c41cd6cf1c stevexu started the topic Concerning the results exporting in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/concerning-the-results-exporting/ Thu, 20 Aug 2015 09:36:45 -0500 The sub scene has been successfully processed, however, I got troubles in the sparse geocoding steps. Something wrong with the index, I reset the steps but still got hooked. Detail goes as shots below:

]]> 0c1a28ab7fa60b84f294866561b09350 stevexu replied to the topic Problems in the APS processing in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/problems-in-the-aps-processing/#post-1108 Sun, 16 Aug 2015 08:11:52 -0500 You are quite right, I did not discern the host address is changed due to the wireless internet reconstruction in our department, now I changed to the wire internet, it works smoothly. Thoroughly thanks!

]]> 01b74801e5eb863e43cd9fa4117d28f7 stevexu replied to the topic Problems in the APS processing in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/problems-in-the-aps-processing/#post-1103 Sun, 16 Aug 2015 01:20:38 -0500 I forgot to mention, the PS numbers and connection is in the screenshot below

]]> cdaae59d81ba50e31e09720cd58103e2 stevexu replied to the topic Problems in the APS processing in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/problems-in-the-aps-processing/#post-1101 Sun, 16 Aug 2015 01:19:24 -0500 I crop the area smaller, which up to 5000 * 6000 pixel, but it still frozen there, since I set the DL=0, the top command shows only one eternal occupied process is by MATLAB, though somehow parallel MATLAB workers show sometime.

The graph processing has been running for up to 50000 seconds, I am playing on 4 core 16 GB RAM machine, is that…[Read more]

]]> f5c5b32eabdb86997fddf8206e510580 stevexu replied to the topic Problems in the APS processing in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/problems-in-the-aps-processing/#post-1082 Fri, 14 Aug 2015 11:34:45 -0500 I use top, only one matlab process is running, as describe below:

That was strange, it has occupied only 5% of CPU

]]> dab370686f3660aa506bf180f795af55 stevexu replied to the topic Problems in the APS processing in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/problems-in-the-aps-processing/#post-1077 Fri, 14 Aug 2015 10:30:25 -0500 Here is the Matlab windows

]]> e0c0499764301486aad4e63df7b4df52 stevexu replied to the topic Problems in the APS processing in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/problems-in-the-aps-processing/#post-1075 Fri, 14 Aug 2015 10:28:29 -0500 Thanks for you attention, the Matlab parallel pool is still busy, but waitbar is still 0%.

]]> 68a2c9b966245b462ae86e5ad916d351 stevexu replied to the topic Problems in the APS processing in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/problems-in-the-aps-processing/#post-1072 Fri, 14 Aug 2015 02:49:37 -0500 Yeah, you are quite right, I reset the parameters as your recommendation, in which:

1. DL=0;
2. Linear trend

I am using a dataset mainly located in the urban area, I re-run the “Sparse Point Selection” and “Graph Creation”, but stopped at “Connection Processing”, the runtime window shows as below

In fact, I do this step in last evening, and…[Read more]

]]> df7fe593bb11ec42868450263d5baaec stevexu replied to the topic Problems in the refine co-registration steps in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/problems-in-the-refine-co-registration-steps/#post-1068 Thu, 13 Aug 2015 07:25:51 -0500 Could be, I am playing SARproz on a 4 core, 16GB machine. I am curiosity why the memory leak happen in the middle? Is there a memory control option in SARproz, like the Doris?

]]> 892b2541328d261b44c9f47e02e5766e stevexu started the topic Problems in the APS processing in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/problems-in-the-aps-processing/ Thu, 13 Aug 2015 02:35:54 -0500 It seems the APS step has trouble. I will put all the screen shot of the setting, result, statistics. Need help for re-run to get modification.

1. The cumulative height of the PS seems has a systemic drift towards big value, which gather above 800m and up to 1000m

2. I check the simulate DEM, it seems all right

3. I tried also the linear-trend…[Read more]

]]> 819e997ed133dc734f842ef8bbf178f1 stevexu replied to the topic Problems in the refine co-registration steps in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/problems-in-the-refine-co-registration-steps/#post-1059 Thu, 13 Aug 2015 00:59:24 -0500 Thanks for your advice, I shall reinstall the right version of Matlab today. Would you take a glimpse of the error file? I will zip them this time.

]]> d26c5f87f77081f4bc4281c4912a6f29 stevexu started the topic Problems in the refine co-registration steps in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/problems-in-the-refine-co-registration-steps/ Wed, 12 Aug 2015 01:18:56 -0500 I tried to pursue anyway without manually assigning the GCP. Next step of DEM seems all right, but I do got troubles in the refine co-registration steps, two slave images can not be co-registered correctly with the master, which ends up with two error files. I will attach the error file below.

]]> ad9d91161b92187ab9025a8e6c8b191b stevexu replied to the topic GCP selection problems in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/gcp-selection-problems/#post-1054 Wed, 12 Aug 2015 01:05:27 -0500 Matlab 2014b is the version, Ubuntu Linux 64-bit is the OS. I tried to skip this step with automatically generated GCPs, but got additional troubles.

]]> eea5853ffcc1625688dbf79232eb3c92 stevexu replied to the topic GCP selection problems in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/gcp-selection-problems/#post-1045 Tue, 11 Aug 2015 10:10:51 -0500 It turns out only on the not zoomed figure the cursor can be positioned. When zoom in, there will be an random deviation of the capture pixel position and the cursor position. The problems goes:

]]> a77b79082eab518b5b914f7017da9272 stevexu started the topic GCP selection problems in the forum Sarproz Forum http://www.sarproz.com/groups/sarproz-group/forum/topic/gcp-selection-problems/ Tue, 11 Aug 2015 09:47:27 -0500 There is a problem of selection GCP in my test scenario. Problem lies the GCP can not be picked up by “date cursor” or ginput command in the reflection map. If use the “data cursor”, an random position is located. And ginput got no response.
Help me out, badly for the next step.

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