stereo

[Luis Santori]

Hello,

I have been working on trying to minimize holes in DTM's by creating a low resolution DTM and then mapprojecting images to the low resolution DTM and then running stereo on the mapprojected images. However, some times when after I run stereo on the mapprojected images I get barely any valid pixels. Does anyone have any idea why this error occurs?

Luis Santori

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

I wonder how the images look after map-projection. You can overlay them in stereo_gui or you favorite GIS tool. Hopefully they look comparable. 

How about the low-res DEM itself, does not look smooth, without holes and noise? 

One can also try stereo with the original (unprojected) images and --stereo-algorithm 2.

Then, a lot of holes can be a symptom of the images being too different, perhaps. 

The process should work, the issue may be your daata. You could also try a different dataset as well, before returing to this one.

---

From: ames-stereo-pi...@googlegroups.com <ames-stereo-pi...@googlegroups.com> on behalf of Luis Santori <luissa...@gmail.com>
Sent: Saturday, November 13, 2021 9:01 PM
To: Ames Stereo Pipeline Support <ames-stereo-pi...@googlegroups.com>
Subject: [EXTERNAL] stereo

 

Hello,

I have been working on trying to minimize holes in DTM's by creating a low resolution DTM and then mapprojecting images to the low resolution DTM and then running stereo on the mapprojected images. However, some times when after I run stereo on the mapprojected images I get barely any valid pixels. Does anyone have any idea why this error occurs?

Luis Santori

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