UK Caving

TECHNICAL FORUMS => Surveying => Topic started by: mucus on November 22, 2018, 05:41:59 pm

Title: Charterhouse Blackmoor Reserve 3d Model & Survey
Post by: mucus on November 22, 2018, 05:41:59 pm
I come from a caving family but personally I spend most of my time underwater. Underwater I did a lot of 3d photogrammetry until a helicopter ride this summer caused a dry spell - so I decided to buy a UAV.
I have had 2 UAVs end up in the water and realise they are not the best tool for underwater photogrammetry so have had a play with some topside photogrammetry instead. Growing up on Mendip I know of no better place to see contrasting topography than Charterhouse, so I scanned it.

The 3d model can be found here: https://skfb.ly/6DnB8

I am currently processing some Digital Elevation Models showing altitude and slopes. I will upload these as and when they are complete.
Title: Re: Charterhouse Blackmoor Reserve 3d Model & Survey
Post by: mucus on November 22, 2018, 05:47:47 pm
Unfortunately I had to decimate the mesh from just under 16m faces to 8.5m faces to get it within the file size limit for Sketchfab
Title: Re: Charterhouse Blackmoor Reserve 3d Model & Survey
Post by: mucus on November 22, 2018, 06:09:39 pm
DEM can be found here: https://flic.kr/s/aHsmu5zXWM

Also previews below.....

(https://farm5.staticflickr.com/4806/44186684160_9be256a432_k.jpg) (https://flic.kr/p/2ajCiL5)Altitude DEM without contours (https://flic.kr/p/2ajCiL5) by marcus blatchford (https://www.flickr.com/photos/underwaterpics/), on Flickr

(https://farm5.staticflickr.com/4846/44186683560_989a6c5930_k.jpg) (https://flic.kr/p/2ajCizJ)Slope DEM without contours (https://flic.kr/p/2ajCizJ) by marcus blatchford (https://www.flickr.com/photos/underwaterpics/), on Flickr

(https://farm5.staticflickr.com/4899/44186683150_820ccbe4b1_k.jpg) (https://flic.kr/p/2ajCisE)Slope DEM with contours (https://flic.kr/p/2ajCisE) by marcus blatchford (https://www.flickr.com/photos/underwaterpics/), on Flickr

(https://farm5.staticflickr.com/4909/44186682320_cca3ec7e79_k.jpg) (https://flic.kr/p/2ajCidm)Altitude DEM with contours (https://flic.kr/p/2ajCidm) by marcus blatchford (https://www.flickr.com/photos/underwaterpics/), on Flickr
Title: Re: Charterhouse Blackmoor Reserve 3d Model & Survey
Post by: PeteHall on November 22, 2018, 07:18:46 pm
Looks great! Will have to boot up the computerand take a proper look.

Thanks for sharing  :thumbsup: