[gdal-dev] New OGR driver: Imageset

[Tamas Szekeres]

Hi Andreas,

Yes I wanted to expose further information, too. It could probably be user
configurable. The driver would be read only, the EXIF would be extracted by
using the corresponding GDAL drivers.
The site you refer to is very interesting,. This is something that we'd
like to achieve. It is also possible to render the symbols as the image
thumbnails by using the image file path attribute in the mapping
applications.

Best regards,

Tamas



2012/7/23 Andreas Neumann <a.neumann at carto.net>

> Hi Tamas,
>
> That would be interesting. So the user could specify a folder with images
> and GDAL would create an OGR layer that would expose the photo location?
> The OGR feature would have certain EXIF data exposed as attributes?
>
> If you work on this, could you also expose other EXIF data, such as the
> viewpoint coordinates, the image direction, the FOV or focal length, the
> sensor size, etc. - this information could be used to create a field of
> view angle of the picture.
>
> You can try this at http://www.geofoto.ch/**geophotomap/index.svg<http://www.geofoto.ch/geophotomap/index.svg>where you can click on a picture standpoint and the browser will display an
> angle where the picture is looking at.
>
> I'd be interested in such a provider, as it would open a lot of
> possibilities to display photo information in various applications.
>
> Are you aware of EXIFTOOL - the perl-script that allows getting and
> setting image metadata, such as EXIF, IPTC, XMP, etc.? See
> http://www.sno.phy.queensu.ca/**~phil/exiftool/<http://www.sno.phy.queensu.ca/~phil/exiftool/>- it is sort of the Swiss Army Knife of photo metadata and one of the fewer
> apps that can also set metadata - not just read.
>
> Andreas
>
>
> On Mon, 23 Jul 2012 09:51:14 +0200, Tamas Szekeres wrote:
>
>> Hi All,
>>
>> We're thinking about implementing a new OGR driver which would
>> represent a set of images as a vector data source. The images are
>> taken from any GPS compatible mobile device, and each picture would be
>> represented as a point feature, the positions would be extracted from
>> the exif information. The file name and path would be provided as an
>> attribute for each feature. This data source could then be used by
>> higher level apps to provide symbols at the picture locations in the
>> map and display the picture when the feature is selected. The driver
>> would definitely use GDAL to extract information about the provided
>> images.
>>
>> I'm not sure whether we already have some kind of alternative solution
>> to this, let me know if you know about any. Further ideas about this
>> topic would also be helpful.
>>
>> Best regards,
>>
>> Tamas
>>
>
> --
> --
> Andreas Neumann
> Böschacherstrasse 10A
> 8624 Grüt (Gossau ZH)
> Switzerland
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