[Imports] [buildings] Italy

[Cascafico Giovanni]

After some test on a municipality scale, I think quality is usable. Main
issues are:

- like every other source, offset needs to be checked on GPS base
- some manual fixing (joins) needed somewhere, supposely in source imagery
boundaries
- some 10-15° heading adjust, supposely in sloped terrain
- complex shapes often are oversimplified

I didn't find many flaws in high density areas. Of course, most of the
effort will be in solving building-highway intersections.

Il giorno mar 24 mag 2022 alle ore 18:52 Imre Samu <pella.samu at gmail.com>
ha scritto:

> > Data has been released jan 2022. Are we talking about the same thing?
>
> Be careful, the latest Italy version is "2022-05-02"!  so the "jan 2022"
> is very old!
> ... /global-buildings/2022-05-02/Italy.zip <-- latest version:
> ( and there was an  /global-buildings/2022-04-26/Italy.zip  version )
>
> side note:
>
> the Hungarian OSM community is also checking the quality
> of GlobalMLBuildingFootprints
> ( hun: talk-hu:
> https://lists.openstreetmap.org/pipermail/talk-hu/2022-May/016914.html )
> the current status:  the quality check is ongoing and looking for the best
> import strategy ( ~ planning )
> We have similar views to those expressed in the readme:
> -  "It is not perfect, particularly in dense urban areas but it provides
> good recall in rural areas."
>
> now: We need best practices to use the JOSM editor for the import.
> ( and some intelligent scripts for prefiltering the data )
>
> regards,
>  Imre
>
> Cascafico Giovanni <cascafico at gmail.com> ezt írta (időpont: 2022. máj.
> 24., K, 14:45):
>
>> > On 23.05.22 10:06, Cascafico Giovanni wrote:
>> >> I'd like to import building footprints recently published by Microsoft.
>>
>> > I am skeptical. The data is known to be of very mixed quality and
>> does need manual inspection.
>> Data has been released jan 2022. Are we talking about the same thing?
>>
>> > Does this project have wide support in the Italian OSM community or is
>> it a one-man-show?
>> I mailed [1] talk-it last friday.
>>
>>
>> [1]
>> https://lists.openstreetmap.org/pipermail/talk-it/2022-May/073894.html
>> _______________________________________________
>> Imports mailing list
>> Imports at openstreetmap.org
>> https://lists.openstreetmap.org/listinfo/imports
>>
>
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