[Talk-ca] using image recognition to create building foot prints.

[Stewart C. Russell]

On 2018-01-29 03:15 PM, john whelan wrote:
> ·        *NRCan is working on a methodology to extract building 
> footprints, including topographic elevation and height attributes,
> from LiDAR
> 
> * Traditionally OSM has not been happy with this sort of thing.
> The accuracy can be poor.

If you want to take a look at this kind of data, Toronto's 3D massing
data set is derived from LIDAR. It's what we have for building outlines,
and it's not bad at all:
https://www.toronto.ca/city-government/data-research-maps/open-data/open-data-catalogue/locations-and-mapping/#db07630f-252d-f7ae-2dff-8d0b38ec6576

cheers,
 Stewart