Summary
Improve the detection of metadata for sub-datasets ( SENTINEL1 SAFE, ...)
Rationale
It was implemented to solve #1589 (closed).
Implementation Details
Classes and files
In a nutshell, we can use the list of files attached to a dataset (see GDALDataset::GetFileList() ) as a final step when looking for OSSIM sensor models.
This list is stored in otb::ImageIOBase, empty by default. Only GDALImageIO can fill it for now. The ImageFileReader will try this list when no keywordlist has been found so far.
Tests
A tests has been added in OTBImageIO to verify the loading of a keywordlist from a VRT file.
Documentation
The SoftwareGuide has been updated (sensor model section).
Additional notes
The following use cases are now working:
| Input path | Keywordlist detected ? |
|---|---|
| S1A_IW_SLC_[...].SAFE | Yes: IW1 image |
| S1A_IW_SLC_[...].SAFE/manifest.xml | Yes: IW1 image |
| SENTINEL1_DS:S1A_IW_SLC_[...].SAFE:IW2_VV | Yes: IW2 image |
| S1A_IW_SLC_[...].SAFE?sdataidx=2 | Yes: IW3 image |
| iw1_vv_vh.vrt (stack of VV and VH) | Yes: IW1 VV image |
As shown, it also works with VRT files, it can load the metadata from the first raster source. This enables the orthorectification of sensor images in a VRT stack.
At the moment, any geom file associate with an attached file is ignored, but this could be added if there is a valid use case.
Copyright
The copyright owner is COPYRIGHT OWNER (OR OWNER'S AGENT) and has signed the ORFEO ToolBox Contributor License Agreement.
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