Theis Jensen - the use of 3 d photogrammetry for on-site recording
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Transcript of Theis Jensen - the use of 3 d photogrammetry for on-site recording
![Page 1: Theis Jensen - the use of 3 d photogrammetry for on-site recording](https://reader031.fdocuments.net/reader031/viewer/2022030307/58e629f81a28ab655d8b5087/html5/thumbnails/1.jpg)
Brug af 3D fotogrammetri til dokumentation af et druknet
Stenalderlandskab
Theis Zetner Trolle Jensen
![Page 2: Theis Jensen - the use of 3 d photogrammetry for on-site recording](https://reader031.fdocuments.net/reader031/viewer/2022030307/58e629f81a28ab655d8b5087/html5/thumbnails/2.jpg)
Oversigt
• Udfordringer
• Hardware og Software
• On-site
• Off-site
• Konklusion
![Page 3: Theis Jensen - the use of 3 d photogrammetry for on-site recording](https://reader031.fdocuments.net/reader031/viewer/2022030307/58e629f81a28ab655d8b5087/html5/thumbnails/3.jpg)
Udfordringer
• Tegning i felt
![Page 4: Theis Jensen - the use of 3 d photogrammetry for on-site recording](https://reader031.fdocuments.net/reader031/viewer/2022030307/58e629f81a28ab655d8b5087/html5/thumbnails/4.jpg)
Hardware og software tilfotogrammetri
• CPU: 2x Intel Xeon E5-2630 v3 @ 2.40GHz (32 kærner)
• Ram: 32 GB
• GFX: NVIDIA GTX 970
• OS: Windows 7, 64-bit, SP1
• Agisoft Photoscan Pro
• Meshlab
![Page 5: Theis Jensen - the use of 3 d photogrammetry for on-site recording](https://reader031.fdocuments.net/reader031/viewer/2022030307/58e629f81a28ab655d8b5087/html5/thumbnails/5.jpg)
On-site
Nikon D7100
Fixed focal lens
Tripod
Remote
![Page 6: Theis Jensen - the use of 3 d photogrammetry for on-site recording](https://reader031.fdocuments.net/reader031/viewer/2022030307/58e629f81a28ab655d8b5087/html5/thumbnails/6.jpg)
On-site
• Trimble Total Station DR 300+
• Ground Control Points (GCP)
![Page 7: Theis Jensen - the use of 3 d photogrammetry for on-site recording](https://reader031.fdocuments.net/reader031/viewer/2022030307/58e629f81a28ab655d8b5087/html5/thumbnails/7.jpg)
To eksempler på brugen
![Page 8: Theis Jensen - the use of 3 d photogrammetry for on-site recording](https://reader031.fdocuments.net/reader031/viewer/2022030307/58e629f81a28ab655d8b5087/html5/thumbnails/8.jpg)
![Page 9: Theis Jensen - the use of 3 d photogrammetry for on-site recording](https://reader031.fdocuments.net/reader031/viewer/2022030307/58e629f81a28ab655d8b5087/html5/thumbnails/9.jpg)
![Page 10: Theis Jensen - the use of 3 d photogrammetry for on-site recording](https://reader031.fdocuments.net/reader031/viewer/2022030307/58e629f81a28ab655d8b5087/html5/thumbnails/10.jpg)
Off-site fotogrammetri af genstande
![Page 11: Theis Jensen - the use of 3 d photogrammetry for on-site recording](https://reader031.fdocuments.net/reader031/viewer/2022030307/58e629f81a28ab655d8b5087/html5/thumbnails/11.jpg)
Off-site fotogrammetri af genstande
![Page 12: Theis Jensen - the use of 3 d photogrammetry for on-site recording](https://reader031.fdocuments.net/reader031/viewer/2022030307/58e629f81a28ab655d8b5087/html5/thumbnails/12.jpg)
Konklusion
• Fotogrammetri er et hurtigt og præcist alternativ til analog tegning.
• Det er ikke destruktivt
• Det er billigt i forhold til felttegning
• Konsistens
• Modeller kan gemmes og nærstuderes på et senere tidspunkt
+
-• Digitalisering i tre dimensioner er umuligt i MapInfo
• Kræver generelle generelle fotofærdigheder
![Page 13: Theis Jensen - the use of 3 d photogrammetry for on-site recording](https://reader031.fdocuments.net/reader031/viewer/2022030307/58e629f81a28ab655d8b5087/html5/thumbnails/13.jpg)
Tak!