centreborelli / s2p

Satellite Stereo Pipeline
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Low Resolution Satellite Imagery #126

Open yzg26 opened 1 year ago

yzg26 commented 1 year ago

Hello,

I am trying to produce dsm with low resolution satellite images (2.5 meters). I obtained a good solution when I worked on high resolution (0.5 meter pan band) images on the same satellite. However, when I want to work on multispectral bands on the same satellite (2.5 meters), DSM is not successful. I tried to change some related parameters in the config file and in the codes, but I could not get a successful solution. I think the problem is "disparity min max values" and "sift matching points". What would you suggest me for a solution? Thank you.

l333wang commented 1 year ago

I've tried to use multispectral imagery, while it cannot work. So I change the multispectral to one single band in greyscale, the code works well. I guess this code cannot work with multispectral images. Is there anywhere showed that s2p can work with multispectral? Am I missed something?

gfacciol commented 1 year ago

Hi, to obtain better results you can average the spectral bands before calling s2p. But feeding multiple bands does not improve the quality of the results and multiplies by a factor 3 the computation time, so we removed that functionality some years ago.

On Wed, Mar 29, 2023 at 8:16 PM Lanying Wang @.***> wrote:

I've tried to use multispectral imagery, while it cannot work. So I change the multispectral to one single band in greyscale, the code works well. I guess this code cannot work with multispectral images. Is there anywhere showed that s2p can work with multispectral? Am I missed something?

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