[Qgis-user] (Semi) automated classification of tree coverage from aerial photography

[Noli Sicad]

Hi Jonathan,

I am interested on tree counting using remote sense data.

I am particular interested in counting trees (i.e. counting Acacia
Mangium at various tree ages), then calculate the volumes from various
stands (i.e. forest inventory).

Please at know when you figure out how to count tree using QGIS plugins, etc.

Thanks.

Regards,

Noli

On 5/17/13, Jonathan Moules <jonathanmoules at warwickshire.gov.uk> wrote:
> Hi List,
>   We're interested in doing some semi-automated classification of 3 (RGB)
> and 4 band (RGB + near infrared) aerial photography to try and determine
> the number of trees and tree coverage of our county (an area of about
> 2000sqkm).
>
> I've done a small amount of searching and see there's a tutorial on
> classification with QGIS (http://gis-lab.info/qa/dtclassifier-eng.html),
> and at least one other plugin (
> http://plugins.qgis.org/plugins/SemiAutomaticClassificationPlugin/).
>
> Before we dive in, I figured I'd ask:
>
> Does anyone have any experience with this using QGIS? Is there a preferred
> plugin? Anything specific to trees I should know?
>
> Thanks,
> Jonathan