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Author Topic: Automatic roof detection and extraction  (Read 1544 times)

Pkroks

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Automatic roof detection and extraction
« on: May 12, 2018, 09:52:51 AM »
Hi guys,

Interested to know if anyone has an algorithm or a method for automated roof detection, isolation and extraction of edges and pitch etc for.building modeling.

I am trying to use photogrammetry to isolate a roof and extract shape files of the edges for import into autocad. Only just begun looking into it but I believe some people are using ransac algorithms in order to.identify the edges.

Any direction or links you can provide would be much appreciated.

Thanks

Dave Martin

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Re: Automatic roof detection and extraction
« Reply #1 on: May 12, 2018, 11:59:48 AM »
Pkroks,

One suggestion - there is a rich set of down-stream processing tools in CloudCompare, and although I have not really used it, there is a RANSAC plugin for CloudCompare: *link*

Dave

Pkroks

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Re: Automatic roof detection and extraction
« Reply #2 on: May 12, 2018, 08:49:47 PM »
Hi, thanks for the info. I have got cloud compare and the ransac plugin but have to figure out how to use it now.

Thanks for the info. If anyone has any tips in Agisoft itself that would be useful.