[gdal-dev] JAXAPalsar 1.0 & 1.1 extended metadata reading support

[Antonio Valentino]

Hi Rodolfo,

Il 17/06/2011 21:28, Rodolfo Bonnin ha scritto:
> Hello all,
> 
> I'm just working with some JAXAPalsar images, and I've discovered that
> there is no retrieval of the coordinate system metadata retrieval in
> the current driver, the driver documentation says georeferencing is
> only supported in level 1.5.
> Has anyone tried to implement the feature for this lower level? I have
> gathered some good information about how this could be done, but in
> order to exempt myself to repeat effort, I prefer to consult the list
> beforehand.

I don't know if someone is currently working on the JAXAPalsar driver.
Anyway I' very interested in extending driver for SAR products to get
more metadata so I would be happy to help if you need.

Palsar products are in CEOS format so IMHO it would be nice to setup a
general mechanism to decode CEOS records (a similar job has been done
for ENVISAT records recently)

http://trac.osgeo.org/gdal/ticket/4105
http://trac.osgeo.org/gdal/attachment/ticket/4105/asar_metadata.patch

The hard part (it is a very boring job) IMHO is to fill data structures
that properly describe CEOS records for each sensor end product type.

Anyway populating record descriptors is a job that can be done gradually
and, hopefully, with the help of other users so we could start with the
few metadata you are currently interested in and add other record
descriptors later.

The key is to setup a genereal (enough) framework for CEOS record decoding.


Best regards

-- 
Antonio Valentino