Caleb Baildon's Activities

3MX Files

Yusuf Azwan — Fri, 22 Sep 2017 07:29:47 GMT

Is it possible to merged completed productions into 1 single file? I have made all the SRS, tile size, coordinates origin the same.

I have tried doing this but the model failed to open as it says that it is corrupted. is there a more detailed way of how to merge these productions into one 3D Mesh model?

Combine the folders

- Create a directory …/Merged Production/Scene

- In this directory (…/Merged Production/Scene) Copy P1.3MX and rename it Merged_Production.3MX

- Copy also (in this directory …/Merged Production/Scene) the two Data folders and rename them Data_1, Data_2

How do I know I'm using a full license and not non-comercial?

Caleb Baildon — Sun, 02 Feb 2020 17:40:30 GMT

Hi there

This has happened before and I don't know how to fix it. We have an ELS aggreement with Bentley for Context Capture, yet I process a job and after 5 days of processing I get orthomosaic images that are watermarked with non-commercial use.

How do I know when I open Context Capture that I have a full license? It is not obvious.

How do I restart the software with a full license to resubmit my ortho to produce it without the watermark? I don't want to start a new project and mark GCPs and then wait another 5 days for the reconstruction.

I have had this issue on several projects from time to time and it is very frustrating.

Thanks for your advice.

How to import image location accuracy

Caleb Baildon — Sun, 24 Mar 2019 23:35:58 GMT

Hi guys

I can see how to import the location and orentation data for each image, but I would like to know how to import or set the accuracy of the location data.

I'm importing images from the DJI Phantom 4 RTK and have accuracies for each photo. These values range from about 20mm to 3m depending on if it had RTK initialisation or not at the time.

Pix4D automatically reads this information from the images.

I am surveying with check points only, so the accuracy of the photos is very important.

As a side issue version 4.4.11.60 does not recognise the camera parameters for the 'undistorted' images from the DJI Phantom 4 RTK.

Cheers

Caleb

Loading an E57 point cloud error - "Failed to convert point to ECEF"

Caleb Baildon — Sun, 22 Jul 2018 19:48:03 GMT

Hi guys

It's my first time trying to incorporate laser scan data into my Context Capture process. However, when I go to load my E57 file, I assign it the coordinate system it is in (New Zealand Transverse Mercator), but I then get an error message that says "Failed to convert point to ECEF".

What might be the cause of this?

I presume if my point cloud is not actually in this coordinate system would be one potential cause?

Could my E57 file be in the wrong format?

What else could I trouble shoot?

Cheers

Caleb

Exporting/saving in 3mx format in CC editor

Alexander Wiegmann — Wed, 27 Sep 2017 17:36:19 GMT

Is it possible import 3mx files in ContextCapture Editor, manipulate them, and export/save them in the 3mx format?

Reconstruction constraints for water - Override the 3D construction

Caleb Baildon — Wed, 20 Dec 2017 19:10:46 GMT

The reconstruction constraints for water appear a bit useless. According to the help file it only fills in holes in the model. Usually I'm not concerned about areas missing data over water, but more concerned with the large lumps that are constructed in the water surface.

In my example below I have added a constraint area from a KML for a mesh of a river and road. The constraint has filled in the area to the right of the model, but has left untouched the mountain of water that is the river.

What is the best way to override the 3D construction of water areas?

Setting or importing photo pose / position metadata in different coordinate systems.

Caleb Baildon — Wed, 31 Jan 2018 17:39:33 GMT

Can anyone please tell me how to set the coordinate system of the camera pose/position?

I have accurate camera positons in a local coordinate system (Okarito 2000 EPSG:2122) in a text file.

Thank you

Why couldn't me find the quick ground extraction menu

Yamei — Tue, 22 Aug 2017 05:51:17 GMT

I couldn' t fint the quick ground extraction menu in my descartes connection

control point ContextCapture

Maria Grazia Spera — Thu, 31 Mar 2016 11:35:16 GMT

Hi!

I'm testing the accuracy of the photogrammetry process. So I use GCP and check point (CP). When I use only GCP the aerial triangulation's error is not relevant and the result is good but when i use GCP and CP the CP's error is higher than GCP's error. My goal is obtain two similar error as I got with other commercial software. Maybe I did some mistakes.

How is it possible?

TEST1

SW 1) GCP error XY -Z (0.050m - 0.070m); CP error XY -Z(0.067m - 0.054m)

SW 2) GCP error XY -Z (0.037 0.040) CP error XY -Z(0.050m - 0.047m)

SW 3) GCP error XY -Z (0.049 0.021) CP error XY -Z(0.056m - 0.059m)

ContextCapture 4) GCP error XY -Z (0.016 0.006) CP error XY -Z(0.167m - 0.288m)

Thanks.

Maria Grazia Spera

Why do I lose marked GCPs during AeroTriangulation?

Caleb Baildon — Wed, 13 Dec 2017 17:55:58 GMT

I've imported photos from a DJI Phantom 3 and performed an AT on them, it works OK except for a bit of radial distortion.

I then bring in and mark my ground control and do another AT using the setting 'Use control points for adjustment', but after AT the number of photos the control points are marked in drops hugely. The ones that still have 3 or more photos have great RMS, but visually the tie points look terrible.

The tie points are many metres from the lost ground control points. The tie points are kind of broken up into groups like there has been a massive earthquake fracturing the ground.

What has happened? Why are the GCPs marked in less (sometimes no photos) after the AT?

Also where can I see the camera parameter calibration from AT?

Cheers

Caleb

					Before aerotriangulation						After aerotriangulation
Name	Category	Check point	Horizontal accuracy [m]	Vertical accuracy [m]	Number of photos	RMS of reprojection errors [px]	RMS of distances to rays [m]	RMS of 3D errors [m]	RMS of horizontal errors [m]	RMS of vertical errors [m]	Number of photos	RMS of reprojection errors [px]	RMS of distances to rays [m]	RMS of 3D errors [m]	RMS of horizontal errors [m]	RMS of vertical errors [m]
GCP1	Full		0.010	0.010	4	411.43	6.454	23.397	6.367	-22.514	3	0.05	0.001	0.001	0.000	-0.000
GCP2	Full		0.010	0.010	4	409.86	16.151	19.969	11.436	16.370	0
GCP3	Full		0.010	0.010	4	344.30	6.666	8.643	7.970	-3.343	3	0.06	0.001	0.002	0.001	-0.002
GCP4	Full		0.010	0.010	4	486.97	13.751	15.279	13.327	-7.472	0
GCP6	Full		0.010	0.010	4	870.70	16.239	55.824	14.866	-53.808	1	0.02	0.001
GCP7	Full		0.010	0.010	5	707.84	11.629	77.088	11.304	-76.255	1	0.03	0.002
GCP8	Full		0.010	0.010	4	788.30	15.943	93.513	15.990	-92.135	0
GCP9	Full		0.010	0.010	5	1139.95	16.914	88.363	19.911	-86.091	1	0.15	0.010
GCP10	Full		0.010	0.010	4	1377.93	15.238	64.111	3.744	-64.002	0
GCP12	Full		0.010	0.010	5	8690.62	28.058	63.225	17.662	-60.708	5	0.05	0.002	0.002	0.002	-0.002
GCP13	Full		0.010	0.010	4	712.22	18.720	29.252	18.038	-23.028	4	0.07	0.002	0.004	0.002	-0.004
GCP14	Full		0.010	0.010	4	598.11	31.025	44.139	14.349	41.741	4	0.04	0.002	0.001	0.001	-0.001
GCP15	Full		0.010	0.010	4	539.34	21.726	23.843	17.301	16.407	4	0.07	0.003	0.004	0.003	-0.003
GCP19	Full		0.010	0.010	5	20387.28	24.567	87.654	15.807	-86.217	1	0.01	0.000
GCP20	Full		0.010	0.010	4	2914.25	43.308	117.417	10.980	-116.902	0
GCP21	Full		0.010	0.010	4	2368.89	42.859	98.524	8.557	-98.152	0

communities.bentley.com/.../Block_5F00_1-_2D00_-part-1-_2D00_-AT-_2D00_-Control-_2D00_-export.zip

Why does my mesh have random objects below ground level?

Caleb Baildon — Tue, 19 Sep 2017 02:41:20 GMT

All of my meshes I create in Context Capture have all sorts of random objects below the surface/ground level. Everything looks good from on top but it looks a mess underneath. The same goes for the underside of tree canopies that have no data. In my latest model I have a large residential section with some buildings and a lot of vegetation. I have a lot of random objects below ground such as pieces of building roof (corrugated iron) and also the underside of tree canopies is corrugated iron.

Why this mess? How do I stop it happening?

Thanks

Caleb

Aerotriangulation fails - It tries 52 times in quick succession.

Caleb Baildon — Sun, 29 Oct 2017 20:52:48 GMT

I have a project with nadir and oblique images. It processed OK with 20+ground control points, except some of the oblique images were in the wrong place so the model was not correct.

I added some MTPs and now AT fails. Here is a screen shot.

This issue now also happens with my AT block that only has GCPs and no MTPs, which processed OK the first time, but I can't clone it and redo the AT.

Any ideas?

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Tue, 19 Sep 2017 01:35:20 GMT

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Context Capture mesh - edit/trim and save back to 3mx for Acute3D.

Caleb Baildon — Thu, 06 Jul 2017 02:57:50 GMT

Hi. I have produced a mesh in Context Capture and would like to crop of the rough edges.

I have tried using Context Capture Connect. I can trim a DGN version of the mesh but don't know how to save to a Web ready 3mx mesh for Acute3D.

How can I trim up and edit my mesh and then save/export as a 3mx mesh for Acute 3D?

Regards

Caleb