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JeremyLondon

Camera Match Tool / Plugin

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Hi There.

Can anyone tell me if there is still a plugin available for C4D that can calibrate a camera from a series of known / surveyed points, instead of perspective lines? I'm trying to composite landscape architectural scenes into photographs, and I find the C4D camera calibration tag quite unreliable even when the photograph has an identifiable x y and z axis. And in photos that don't contain right-angle geometry it is no use at all.  

3DS Max uses a system where you can attach 'Campoints' to 3D loci in a modeled scene, and then locate those points on a photograph to calibrate the camera. I've tested it using a trial version of 3DS and it works very well. You can see it demonstrated in this tutorial. 

Back in 2012 before the camera calibration tag was added to C4D there was a plugin available from an outfit called Pano4d which could do the same thing. It's shown this video from about the 2:25 mark onwards. Sadly the plugin seems to no longer be available and the Pano4d website is down.

If anyone knows whether this can still be done with C4D, or an available plugin, I'd love to hear from them!

I'd also be most interested to hear about any other methods people are using to accurately match 3D scenes to photos.

Cheers!

Jeremy  

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maybe it has been superseded by this:

 

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Guest VisualDigits

Maybe but unfortunately the new camera calibration tag is not available in prime or broadcast (I have prime "only").

We do have projection man but without the camera calibration that one is quite useless IMHO.

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Sorry that is is an old thread, but this is exactly what I’m look for also. 

 

I work doing volumetric analysis for earthworks and build 3D site models, fly a drone that gets the aerial imagery of the site, and we are also supplied with full 3D surveys of the existing site. What I am wanting to do is be able to take a hero image of the site and using the topo data, indicate multiple 2D points within the image and match them to real-world 3D coords to give me the correct camera location. Obviously being able to both import the real camera settings and have the software guess the setting for different cameras as per the current camera calibrator would be perfect! I could then import the output model from my software and it fit perfectly, and render the proposed over existing and have a client deliverable. 

 

As it stands I have demo’d everything from Agisoft Photoscan to PFTrack, 3DS Max etc... but what I am looking for almost seems to simple and therefore not supported by any of them! I don’t know if I am missing a really simple trick with this, but it seems like the ability to match a single frame to surveyed coordinate data is just not something that anyone does, but would be so beneficial for anyone doing ArchViz. 

 

Imagine being able to get a capture of Google Earth for example, be able to use a survey to identify 12+ points with real-world 3D coords and then simply drop in a model already geo-referenced. It sounds so simple that I cannot believe everyone doing ArchViz does it. 

 

Any help and guidance here will be greatly appreciated. 

 

Regards

 

Ritchie

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  • Topic Author
  • Hi Ritchie.

     

    These days I use a program called Syntheyes. I think it’s exactly what you’re looking for. Here’s a tutorial on it:

     

    Hope this helps.

     

     

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    i'm interested into this as well. the built in tool is extremely difficult to use / useless when matching non-linear shapes. especially when trying to match single aereal shots from drones to non-linear cityscapes. hopefully there will be a plugin developer for this anytime soon. a workflow like in the old realviz imagemodeler would be perfect.

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