Posts Tagged ‘photosynthtoolkit’

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Photorealistic mesh created with PhotoSynthToolkit

February 4th, 2011

I’ve updated the PhotoSynthToolkit, it now integrates the CameraExport 3DS Max script created by Josh Harle. I’ve converted his code from C# to C++ with his approval, so the 3DS Max script is now generated directly when you download a Synth with my PhotoSynthDownloader. So now you’ll find a “cameras.ms” file in the “bin” folder. In the video just below you’ll see the difference between the rendering using only vertex color and the one using texture projection:

For 3DS Max beginner like me, this is how I have setup the rendering:

  • add path to your synth: Customize -> Configure User Paths -> External Files -> add Path to your pmvs\visualize folder
  • when importing the obj file be sure to uncheck Flip ZY-axis
  • change environment global lighting: Rendering -> Environment -> Global Lighting: level 0.0, Ambient white

As usual the new toolkit his available on his dedicated page.

 
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Ogre3D PhotoSynth Viewer

January 26th, 2011

This viewer is now integrated with the new version of my PhotoSynthToolkit (v5). This toolkit allow you to download synth point cloud and thumbnails pictures. You can also densify the sparse point cloud generated by PhotoSynth using PMVS2 and then create great accurate mesh using MeshLab.

New feature of PhotoSynthToolkit v5:

  • Thumbnails downloading should be faster (8x)
  • New C++ HD picture downloader (download tiles and re-compose them)
  • Tools to generate “vis.dat” from previous PMVS2 call (analysing .patch file)
  • Working Ogre3D PhotoSynth viewer:
    • Can read dense point cloud created with my PhotoSynthToolkit using PMVS2
    • Click on a picture to change camera viewpoint
    • No-roll camera system

Warning: the PhotoSynth viewer may need a very powerful GPU (depending on the synth complexity: point cloud size and number of thumbnails). I’ve currently tested a scene with 820 pictures and 900k vertices on a Nvidia 8800 GTX with 768mo and it was working at 25fps (75fps with a 470 GTX and 1280mo). I wish I could have used Microsoft Seadragon :-) .

Download:

The PhotoSynthToolkit v5 is available on his dedicated page, please do not make direct link to the zip file but to this page instead. So people willing to download the toolkit will always get the latest version.

Video demo:

Future version

Josh Harle has created CameraExport: a solution for 3DS Max that enable to render the picture of the Synth using camera projection. I don’t have tested it yet but I’ll try to generate a file compatible with his 3DS Max script directly from my toolkit, thus avoiding to download the Synth again using a modified version of SynthExport. Josh has also created a very interesting tutorial on how to use mask with PMVS2:

Masks with the PhotoSynth Toolkit 4 – tutorial from Josh Harle on Vimeo.

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PhotoSynthToolkit results

November 19th, 2010

This is just a small post to show you want kind of results you can get with my PhotoSynthToolkit:

Download location and source code introduced in my previous post.

 
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PhotoSynth Toolkit updated

November 9th, 2010

Overview

I have updated my PhotoSynth toolkit for easier usage (the same way as SFMToolkit). This is an example of dense mesh creation from 12 pictures using this toolkit:

The 12 pictures were shot with a Canon PowerShot A700:

Thanks to this toolkit, PMVS2 and MeshLab you can create a dense mesh from these 12 pictures:

triangulated mesh with vertex color -> triangulated mesh with vertex color and SSAO -> triangulated mesh shaded with SSAO -> triangulated mesh wireframe -> photosynth sparse point cloud
(sparse point cloud : 8600 vertices, dense point cloud: 417k vertices, mesh: 917k triangles)

 

You can also take a loot at the PhotoSynth reconstruction of the sculpture.

PhotoSynthToolkit is composed of several programs:

  • PhotoSynthDownloader: download PhotoSynth point cloud and cameras parameters
  • PhotoSynth2PMVS: enable to run PMVS2 with a downloaded PhotoSynth point cloud
  • PMVS2 : http://grail.cs.washington.edu/software/pmvs/ created by Yasutaka Furukawa
  • PhotoSynthViewer: Ogre3D PhotoSynth viewer [not working yet]

Download

The source code is available under MIT license on my github. I have also released a win32 binary version with windows scripting (WSH) for easier usage: PhotoSynthToolkit4.zip.

Help

If you need some help or just want to discuss about photogrammetry, please join the photogrammetry forum created by Olafur Haraldsson. You may also be interested by Josh Harle’s video tutorials, they are partially out-dated due to the new PhotoSynthToolkit version but these videos are very good to learn how to use MeshLab.

Please go to the PhotoSynthToolkit page to get the latest version

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PMVS2 x64 and videos tutorials

September 23rd, 2010

PMVS2 x64

I’ve finally managed to spend a couple of hours to compile a 64 bit version of PMVS2 for windows! You can download PMVS2_x64.zip right now. I’ll hope that this version will help some persons, I’ve personally managed to create a very dense model thanks to this version and PMVS2 was using more than 4Gb of ram on a 8-cores machines.

How to compile PMVS2 x64 by yourself:
download the CMake package of CMVS (containing PMVS) created by Pierre Moulon.
download and compile gsl 1.8
download precompiled pthread x64 lib from equalizer svn
download and compile clapack 3.2.1 using CMake

PhotoSynthTileDownloader

As requested by some persons, I’ve updated my PhotoSynthTileDownloader: you can now resume a partial download ! It’s already available for download: PhotoSynthTileDownloader2.zip.

Videos tutorials

Josh Harle has done some very nice videos tutorials on how to use my PhotoSynth ToolKit and has created another toolkit for Bundler that is using my BundlerMatcher.

PhotoSynth Toolkit post on Josh Harle’s blog.

Note: In fact your synths doesn’t need to be 100% synthy. My tool (PhotoSynth2PMVS) is capable of using an uncomplete synth. And now you could use my 64bit version of PMVS2 instead.

Please go to the PhotoSynthToolkit page to get the latest version


Bundler photogrammetry package post on Josh Harle’s blog.

Please go to the SFMToolkit page to get the latest version

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