Topics

1

Bug Reports / Program crashes when trying to open (1.6.4)

« on: September 28, 2020, 10:32:57 PM »

Program simply freezes ("not responding") when trying to open the program.  I've tried to Repair and that hasn't helped.  See log below.

Code: [Select]

2020-09-28 14:21:24 Agisoft Metashape Professional Version: 1.6.4 build 10928 (64 bit)
2020-09-28 14:21:24 Platform: Windows
2020-09-28 14:21:24 CPU: Intel(R) Core(TM) i7-9700K CPU @ 3.60GHz (desktop)
2020-09-28 14:21:24 CPU family: 6 model: 158 signature: 906ECh
2020-09-28 14:21:24 RAM: 31.8 GB
2020-09-28 14:21:24 OpenGL Vendor: NVIDIA Corporation
2020-09-28 14:21:24 OpenGL Renderer: GeForce RTX 2080/PCIe/SSE2
2020-09-28 14:21:24 OpenGL Version: 4.6.0 NVIDIA 451.67
2020-09-28 14:21:24 Maximum Texture Size: 32768
2020-09-28 14:21:24 Quad Buffered Stereo: not enabled
2020-09-28 14:21:24 ARB_vertex_buffer_object: supported
2020-09-28 14:21:24 ARB_texture_non_power_of_two: supported

2

General / Performance comparisons

« on: July 24, 2019, 07:47:33 AM »

I was using a laptop for smaller projects and MS Azure VM for larger projects.  Up until the laptop died.  I replaced it with a new desktop.  I decided to do some unscientific comparisons. 
I did comparisons on two different datasets.  First comparison is new desktop vs Azure VM and second comparison is new desktop vs old laptop. 

I also wanted to do this because ever since upgrading the Azure VM to Metashape from Photoscan, I never thought it performed correctly (as discusssed here: https://www.agisoft.com/forum/index.php?topic=10304.msg48167#msg48167).  Comparison 1 appears to confirm it.

Upgrading RAM speed in new desktop made a difference, as did adding the tweak.

3

General / Remote access connection recommendations

« on: July 19, 2019, 07:47:59 PM »

What is the recommended software to use to remote access a PC running MS?  As I recall, MS-RDP is not recommended.  Will RealVNC or TeamViewer work?

4

General / How to spend $5k USD

« on: June 14, 2018, 11:49:08 PM »

I currently use a MS Azure NC24 vm that has:
- (2) Xeon E5-2690 v3 @ 2.60Ghz (24 cores)
- 224 GB RAM
- (4) Nvidia Tesla K80

My biggest project to date is processing ~11,000 photos (20MP/ea) as one chunk.  I just ran 5,000 photos (24MP/ea) for a project last week.  500-3000 24MP photos are more common size projects.

One of the issues with using MS Azure is their bottlenecking of bandwidth.  This can add 2-4 hours of time waiting to upload all of the data.  It is pretty rare, but I've also had issues with not being able to start up the VM because resources were not available.  In those cases, I switched to the NC12 setup and was able to run.

I'm wondering what I could buy that might keep up with the NC24 setup.  I'm thinking dual i7 or i9 CPUs with at least 2 video cards.  OR, should I look at 2 or 3 lower power PCs and network together?  Of course, each PC would need it's own Photoscan Pro license at $3500 each. 

Any suggestions that might fit under $5k?  Is $5k enough?

Thanks,
Doug

5

General / Camera vs Marker reference coordinate system settings

« on: June 14, 2018, 05:41:51 PM »

For my mapping projects, I use two basic setups.  For my primary one, both the camera geotags and my GCPs are both in State Plane Coordinate System (SPCS) for horizontal and NAVD88 for vertical.  This setup seems to work fine.

For my smaller projects where I use a P4, the photos are geotagged as WGS84 and GCPs are still SPCS w/ NAVD88.  I am trying to set the references in the Reference Settings and it doesn't like what I'm doing. See attached photo for what I'm selecting.  When I do this, all of the coordinates for the cameras/photos disappear (blank), but the marker coordinates are still in place.

What am I doing wrong?

6

General / Affect of Gradual Selection edits

« on: December 14, 2017, 02:47:11 AM »

If you edit your sparse point cloud based on the various options, how does that affect the subsequent dense point cloud generation?

Assume you have an area where you deleted a large number, or all, of the sparse points, I guess that would leave hole in the dense point cloud, correct?

7

General / Datum selection & conversion

« on: November 17, 2017, 07:33:13 AM »

I used to do everything in WGS84, but now working with survey companies, I have to deliver orthos and DEMs in one of the following datums (depending on project location):

Horizontal Datums used:
2916 (or 2275)  NAD83(HARN) - Texas North, US Survey Ft
2917 (or 2276)  NAD83(HARN) - Texas North Central, US Survey Ft
2918 (or 2277)  NAD83(HARN) - Texas Central, US Survey Ft
2919 (or 2278)  NAD83(HARN) - Texas South Central, US Survey Ft
2920 (or 2279)  NAD83(HARN) - Texas South, US Survey Ft

Vertical Datum
5703 NADV88

My GCPs and CPs are recorded in the above datums, whereas my photos are geotagged in WGS84.  My plan is to convert the photo geotags to match GCPs.  I then would not have to do any transformations later.

I'm a little, or lot, confused on the conversion feature in Photoscan.  When converting, one must know and set the source and target datums.  Which is which in Photoscan?  I can see the datum in Reference Settings and a datum in the Convert Reference screen.  If photo geotags are WGS84 and I want to convert to one of the above datums, what do I set these to?

Next…
I see the 5 horizontal datums as options.  I also see NAD83+NAVD88 (5498) and NAD83(2011)+NAVD88 (6349).  Is it possible to combine NAVD88 with the above horizontal datums? If so, how do you do this?

Alternative solution:
Use NOAA Vdatum program to convert photo geotags.  Though this would not address the datum assignment in Photoscan.

Thanks,
Doug

8

General / CloudCompare & qCSF

« on: November 12, 2017, 12:48:22 AM »

Anyone exporting their dense point cloud to load into CloudCompare & qCSF plugin?  I was wanting to use CloudCompare & qCSF to do the point cloud classification.  I'm not having much luck.

Which format do you export your dense cloud?

For the formats I can get to load into Cloudcompare, the qCSF icon is always grayed out and not selectable.

Thanks,
Doug

9

General / Photos with different geotag accuracies - answered

« on: August 14, 2017, 05:42:39 AM »

I flew 20 missions to cover 8,000 acres.  Each mission generated 450-600 photos.  I won't bore you with the details of why, but 6 of the 20 were geotagged with PPK accuracy (5-10 cm), while the remaining group of 14 are in the range of 3-5 m accuracy.

I have GCPs measured to 1-2 cm accuracy.

What camera accuracy setting should I use?

Thanks,
Doug

10

General / Azure NC24 & Nvidia K80 not working with Photoscan (edit: DOES work)

« on: June 10, 2017, 06:54:42 AM »

My IT group set up new NC24 running Server 2012 R2 Datacenter w/ 2 Xeon E5-2690 and 4 Nvidia Tesla K80 cards.

When they originally set it up, it didn't have any Nvidia drivers.  I installed latest (377.35) drivers.

I am connecting via VNC.

I am still getting the "text labels will not be rendered with current OpenGL." message. I can hit OK and hit Alt-T to get to Preferences to change Stereoscopic Display to Hardware and screen will appear (along with another error).

Log file shows:
2017-06-09 22:47:09 OpenGL Vendor: Microsoft Corporation
2017-06-09 22:47:09 OpenGL Renderer: GDI Generic
2017-06-09 22:47:09 OpenGL Version: 1.1.0
2017-06-09 22:47:09 Maximum Texture Size: 1024
2017-06-09 22:47:09 Quad Buffered Stereo: not enabled
2017-06-09 22:47:09 ARB_vertex_buffer_object: not supported
2017-06-09 22:47:09 ARB_texture_non_power_of_two: not supported

I don't know why the Nvidia card(s) are not showing here.

The Nvidia Control Panel appears to show be very limited info.

Any ideas on how to make Agisoft use Nvidia cards?

I have a 10,448 photos I need to work on.

Thanks,
Doug

11

General / Computer for large mapping project

« on: May 25, 2017, 04:27:36 AM »

My largest UAV mapping project to date is 1,500 acres (6 sq km).  I am preparing proposal for up to 12,800 acres (52 sq km) and I know I will need bigger/better PC to process this data.

GSD will be about 3.2 cm/pix using Sony QX1 at 400 ft AGL.  I'm estimating about 16,000 pics.  I assume I'll need to run these in chunks.

I have run into persons in the past who say they had issues using Photoscan for this large of a project, though admittedly, that was at least 2 years ago.  I'm hoping Photoscan is up to the task.

With a budget of $2,500 to $3,000 USD, can anyone make some recommendation for CPU, RAM, and video card? I'm not opposed to building from parts.

Thanks,
Doug

12

General / Confused on NDVI Workflow for 2 Canon S100 cameras

« on: June 09, 2016, 11:42:24 PM »

I have 2 Canon S100 cameras.  One has the filter installed.  Both cameras are mounted to UAV but don't always trigger at same time/location.

I'm trying to figure out the proper workflow to generate the NDVI map.  Because it is not a true multispectral camera, I'm not sure how to create the formula to pull data from both mosaics (RGB & NGB).  Actually, I'm not even sure I'm setting up the project correctly.  I have one chunk for RGB and another chunk for NGB.  I hope this is correct.

Can anyone share the correct process to create index map using two different images?