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Misalignments between coverages produced by different data providers

I opened the following discussion topic in the Orthoimagery subgroup, asking to discuss about the interoperability problems caused by misalignments between orthoimages produced by different data providers:

Original description:

When combining raster georeferenced data (grid coverages) from different sources - e.g. two different data providers - using the same coordinate reference system, limits of corresponding pixels (coverage grid cells) may not match in x, y coordinates, i.e. maybe they are not properly aligned due to the fact they were generated by independent production lines.

This is in fact an interoperability issue that may be appreciated in the combined image - e.g. because of presence of artifacts or interrupted geographic elements in the limit between the orthoimages being combined.

Is there any experience in Member States where such kind of issues appeared when sharing data from different providers and/or proposals to tackle them?

In order to solve these issues INSPIRE proposes the provision of OI data using a common Pan-European grid, namely 'Zoned Geographical Grid', in order to share information using the same framework (with common rules: grid origin, grid orientation, etc.), but its utilization is just recommended at the moment.

Since the topic is not only applicable to Orthoimagery coverages but also Elevation coverages (and any other INSPIRE coverages in general), please use this new discussion topic in the parent Cluster group for further discussion.

Feel free to participate!

Elevation, Ortho & Grids

Elevation, Ortho & Grids

INSPIRE Thematic Cluster Elevation, Orthoimagery, Reference systems, Geographical grids - Join this group to share your knowkledge, learn and collaborate in solving issues related to the Elevation, Orthoimagery, Reference systems and Geographical grids themes