All Questions
6
questions
1
vote
0
answers
395
views
Run gdalwarp to rectify a raster (RPC embedded) with DEM but got error: Too many points failed to transform, unable to compute output bounds
I've been trying to rectify an unprojected raster (with RPC model) with digital surface model (DSM) by using gdalwarp command. Here is the command:
gdalwarp \
-co BIGTIFF=YES \
-co "TILED=YES&...
- 258
3
votes
1
answer
2k
views
Gdalwarp orthorectification WorldView-3 not using RPC projection properly
I have a high-resolution WorldView-3 image that I am trying to orthorectify using
gdalwarp -rpc -to "RPC_DEM=dem.tif" input.tif output.tif
However the output is not aligned with Bing or Google maps ...
- 131
1
vote
0
answers
181
views
gdalwarp with DSM as DEM leaves shifted pixels in their original unshifted location
I'm trying to account for building parallax differences between images collected at different viewing angles. When I use a DSM created from VRICON data as my DEM source, I notice that building roof ...
- 11
0
votes
0
answers
510
views
Gdalwarp creates a "perspective drawing" effect rather than an ortho-rectified image
I have been happily using the "utilities as libraries" functionality of gdal 2.1+ to ortho-rectify an image. First I use gdal.Translate to convert the source file to a geotiff, and then I warp it to (...
- 133
4
votes
1
answer
1k
views
Does GDALWARP have support for OpenCL speedup to orthorectification?
So I am attempting to orthorectify some images very large images. The process can take several hours so currently I am relying on using 8 threads to perform the speed up. However, the GPU does not ...
- 529
0
votes
1
answer
255
views
How to project a large nonortho satelite image on a much smaller high res DEM?
I am currently attempting to orthorectify an image using GDAL. I have a very detailed DEM that I would like to rectify the image on top of. However, the DEM is smaller than the image itself; this is ...
- 529