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Author Topic: Export CRI point cloud  (Read 3995 times)

ppant

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Export CRI point cloud
« on: July 21, 2017, 09:17:11 PM »
HI
Is there a way to export CIR (Color and Infrared) point cloud from Photoscan. I am processing multispectral image.  I can export the colorized point could but. I am not able to see the open to see colorized based on nir, red and green band.

Thanks

PPant
« Last Edit: July 28, 2017, 12:32:26 AM by ppant »

HyperFox

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Re: Export CRI point cloud
« Reply #1 on: July 28, 2017, 11:25:08 AM »
I have exactly the same question!

Alexey Pasumansky

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Re: Export CRI point cloud
« Reply #2 on: November 17, 2017, 01:46:16 PM »
Hello,

Version 1.4.0 supports multispectral colors export as separate color values for each channel, if the point cloud is saved to XYZ format.

Also it is possible to use False Colors representation of multiband input and visualize/export it in false RGB colors.
Best regards,
Alexey Pasumansky,
Agisoft LLC

ppant

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Re: Export CRI point cloud
« Reply #3 on: May 10, 2018, 05:56:03 AM »
Alexey
As you said with photoscan 1.4.0 it is possible to export point cloud with false color.  In exportPoints function, there is an option to choose format. Can we choose XYZ format there? if we choose XYZformat I am not sure how to specify the false color bands?. I am not clear over there. 

Code snippet would be helpful to understand.

Likewise is it possible to export more than three bands in point cloud XYZ format?

Thanks

Alexey Pasumansky

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Re: Export CRI point cloud
« Reply #4 on: May 13, 2018, 02:19:03 PM »
Hello ppant,

If you use the following line for the export, it would save the points in XYZ format with all the color values for each band:
Code: [Select]
chunk.exportPoints(path, format = PhotoScan.PointsFormatXYZ, colors=True, normals = False, projection = chunk.crs)
For example for RedEdge camera (XYZ coordinates and five columns for each band):
Code: [Select]
-118.085147 43.807395 270.040545 8134 27082 11837 28847 43749
-118.085095 43.807428 270.254913 7510 28259 11526 31415 38258
-118.084987 43.807414 270.669534 6222 26099 9771 28367 35536
-118.085094 43.807376 270.478392 20337 27852 22285 20669 17387
-118.085054 43.807340 270.855176 13217 25274 10200 24758 31883
Best regards,
Alexey Pasumansky,
Agisoft LLC

ppant

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Re: Export CRI point cloud
« Reply #5 on: May 14, 2018, 05:31:34 PM »
Alexey
Thanks for the information.

ppant