Messages

301

General / Re: Modelling an engine block

« on: November 12, 2013, 03:19:44 PM »

Hello Jokeri,

do you mean with

All I'm missing is the full version of the program

the professional version of Agisoft PhotoScan?

You don't need it for your engine, you can also do it with the standard version and scale your results for example with the free Meshlab afterwards .

As Matt suggested

You will probably need to coat it with something dull to get the photo matching to work.

use for example some Anti Flare / Dullingspray. You can also improve the photos/results further by projecting some noise pattern on your dull object.

Karsten

302

General / Re: Octocopter + Agisoft + Bunker = Video

« on: November 02, 2013, 02:53:56 PM »

Hi navalguijo,

I meant the mesh editing too (windows of the bunker), how do you do it?.

Karsten

303

General / Re: Octocopter + Agisoft + Bunker = Video

« on: October 31, 2013, 08:32:47 PM »

Well done! Which software do you have used in the movie for editing the mesh?

@Wishgranter: No problems with viewing on Windows 7 and firefox or opera.

Karsten

304

Face and Body Scanning / Re: supermarket scanning/printing

« on: October 16, 2013, 10:27:06 PM »

chadfx,

thank you for that interesting link!

Karsten

305

General / Re: Scanning sculptures of a facade

« on: September 27, 2013, 07:59:45 PM »

I see three advantages to project a pattern with a flash in comparison to a projector:

1. higher portability (no power cable, smaller, lighter, ...)
2. brighter
3. higher resolution of slides -> higher resolution of the calculated geometry

The ratio between camera stereo base and distance to the object should be in the range of 1:5 to 1:10 for good stereo model.

Regards,

Karsten

306

General / Re: Best F-Stop for the best Data?

« on: September 26, 2013, 11:35:42 PM »

Another option for focus stacking is to use Magic Lantern for Canon DSLR's or CHDK/SDM for Canon's point and shoot cameras together with one of the free image stacker (Enblend, Tufuse, Picolay, ...) .

Cheers,

Karsten

307

General / Re: Alternative for Canon EOS

« on: September 12, 2013, 06:09:38 PM »

Hi FoodMan,

yes, I have the stable release v2.3 from 2012 on my Canon 60D, really stable, no crashes, funny new features and definitively worth a try.

Karsten

308

Camera Calibration / Re: Undistort Photos

« on: May 14, 2013, 07:28:16 PM »

+1

Yes and aligning is time consuming too. Or the possibility to undistort images within Photoscan based on camera calibration results without prior aligning.

Thanks!

Karsten

309

General / Re: Problems with generating Orthophoto

« on: May 14, 2013, 06:56:40 PM »

Ludwig, Cotopaxi,

nice if you post the coordinates of the GCP's, so we can try (the original offer to test it in Graticule 3D came from Ralph btw., but Graticule 3D is really funny - so no problem to test it for you or you do it by yourselve)!

Btw. snow is one of the worst subjects to scan in near makro mode when you can see the crystals, the far away the better. I have tried it only once.

Good luck with testing the suggestions!

Regards,

Karsten

310

General / Re: Problems with generating Orthophoto

« on: May 13, 2013, 10:51:54 PM »

Ralph,

Yes I also think that the errors given in the screenshot show the dicrepancy to the model that all GCP's have the same z value (zero). Thats why I thought it isn't right to set them all to zero, because they couldn't have the same value. I think Photoscan try to find the best solution for the given (wrong) GCP's.

Regards,

Karsten

311

General / Re: Problems with generating Orthophoto

« on: May 13, 2013, 08:18:32 PM »

Hello Ludwig,

if I understand you right, you want an ortogonal photo of the area of slope. So all your GCP's can't have a  z-value equal to zero, which means a perfect plane. I think you should at first do a plane fitting for your GCP's for example with "Graticule 3D" http://derletztekick.com/software/formanalyse. Then you get the right z values, which are slightly different to zero. These values should be used in Photoscan.

Regards,

Karsten

312

General / Re: X-Ray Rontgen 3D scanner using Agisoft

« on: April 02, 2013, 12:44:01 AM »

April, April!

 

Karsten

313

General / Re: Capturing motion with one camera?

« on: March 07, 2013, 07:50:19 PM »

trzs,

in principle: Yes mirrors could be used, but you lose image resolution (two mirrors -> half resolution, ...) and you have some work by hand (masking, duplicating, ...). The simplest way is to use a beamsplitter.

Regards

Karsten

314

General / Re: 1D, 2D or 3D camera setup?

« on: March 07, 2013, 07:42:34 PM »

Hi RalfH,

I think you get some answers to your questions in this paper "IMAGE ACQUISITION AND MODEL SELECTION FOR MULTI-VIEW STEREO" by K. Wenzel, M. Rothermel, D. Fritsch, N. Haala:

http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-5-W1/251/2013/isprsarchives-XL-5-W1-251-2013.pdf

Karsten

315

General / Agisoft at 3D-ARCH 2013

« on: March 06, 2013, 08:16:24 PM »

Agisoft Photoscan has discussed by some speakers at 3D-ARCH 2013 - 3D Virtual Reconstruction and Visualization of Complex Architectures 25 – 26 February 2013, Trento, Italy.

For example: http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-5-W1/73/2013/isprsarchives-XL-5-W1-73-2013.pdf

You find a list of all presentations here:

http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-5-W1/

Karsten