Repeating pixels when visualising using stereo_gui

[lucia.and...@gmail.com]

Hello, 

I have run into a problem using stereo gui. 

I am using raw Pleiades for stereo processing, however, when I transfer the images onto the server and visualise them using stereo_gui I see weird artifacts of repeating pixels. The orthos made from these images are fine, as is the subsequent DEM. If using --no-georef or --preview options the images look fine. is it correct to assume this is caused by a random glitch in stereo_gui rather than an error in the image? 

Many thanks! 

Lucia 

[Alexandrov, Oleg (ARC-TI)[KBR Wyle Services, LLC]]

Since you mention only raw Pleiades images have this problem and using --no-georef makes this go away, I am guessing the raw Pleiades images have an invalid georef. 

These images should have no georef at all, being raw, so likely they put something in which confuses the viewer.

I would not be able to verify this without a testcase, which likely would be a pain to share. Since --no-georef works for you, and subsequent products that properly handle the georef are fine, maybe one can work around this.

If you can share the precise Pleiades image type (such as PHR, NEO), I could be on the lookout if using these in the future.

And to confirm, I think raw images should be Pleiades level 1A  / 1B, rather than level 2, which would be orthos.

You can also try a different viewer as sanity check. QGIS is agood choice.

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From: ames-stereo-pi...@googlegroups.com <ames-stereo-pi...@googlegroups.com> on behalf of lucia.and...@gmail.com <lucia.and...@gmail.com>
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[lucia.and...@gmail.com]

Yes it is Pleiades PHR. 

Thank you!

Lucia