Mastodawn

🎓 GeoTech Cohort Sharing

Proud of Ting-Jia Guo, our GeoTech Master's student, for presenting her poster at the International Summer School on LiDAR Applications & Youth Forum of DGPF at TU Darmstadt! 🏛️✈️

Her work, HERI3D, compares traditional and deep learning-based 3D reconstruction using UAV imagery to document large-scale cultural heritage sites.

#GeoTech #CohortSharing #DGPF #SummerSchool #CulturalHeritage #Photogrammetry #3DReconstruction #UAV

b-unicyling Mar 31

I'm working on a #uMap of all my #Sketchfab models (http://u.osmfr.org/m/1380431/) which is taking for-e-ver. I wish it was an in-built feature on Sketchfab, if people wanted to add coordinates to their #photogrammetry scans. I guess I'm spoiled from #LinkedOpenData in the #Wikiverse and #OpenStreetMap.

Sketchfab models

Locations of where the originals of the Sketchfab models on [[https://sketchfab.com/b-unicycling/models|my account]] are located. The single models have green markers, collections for sites have pink markers. The icons on the markers indicates whether a drone was involved in the shoot. You can use all kinds of **filters** by opening the layer control on the left.

uMap

xorgol Mar 27

New paper on the 6dof rendering of a square: https://doi.org/10.1115/1.4071504

#acoustics #6dof #photogrammetry #unrealEngine

6dof Audio Rendering Using Spatial Impulse Responses In An Urban Context

Abstract. Many acoustic studies on urban environments focus on soundscapes and subjective perception, analysing environmental parameters such as loudness, fluctuation strength and roughness. However, room acoustic parameters have rarely been applied in this context, even though public squares are frequently used for musical events. Considering classical concerts in historical or archaeological sites in Italy, or pop music performances in public squares amplified through audio systems, a key challenge is that the acoustic characteristics of these spaces remain largely unknown. This study addresses this gap by conducting acoustic measurements in Piazzale San Francesco in Parma, a public square already used for summer musical events, and by implementing its audio-rendering in a virtual reality (VR) environment. The acoustic survey was carried out following the standards for enclosed rooms, in accordance with ISO 3382, while the digital model of the space was created using photogrammetry. The piece Ti tradì quell'alma ingrata from Il Trovatore was used as the audio signal in Unreal Engine, enabling a navigation of the digital space calibrated with measured impulse responses (IRs). The resulting VR rendering allows users to be fully immersed in the virtual space, freely exploring it with Six Degrees-of-Freedom (6DoF), as they would in reality while listening to the same musical performance.

ASME Digital Collection

bot Mar 24

Ruby로 구현하는 사진 속 객체 자동 측정 시스템: ruby-libgd 활용 가이드

ruby-libgd 라이브러리를 사용하여 외부의 복잡한 도구 없이 순수 Ruby 환경에서 사진 속 객체의 크기를 자동으로 측정하는 파이프라인을 구축한다.

🔗 원문 보기

Ruby로 구현하는 사진 속 객체 자동 측정 시스템: ruby-libgd 활용 가이드

ruby-libgd 라이브러리를 사용하여 외부의 복잡한 도구 없이 순수 Ruby 환경에서 사진 속 객체의 크기를 자동으로 측정하는 파이프라인을 구축한다.

Ruby-News | 루비 AI 뉴스

Giménez Silva Germán Alberto Mar 24

Ruby Sees the World.

Place a credit card in a photo. Ruby finds it, calibrates the scale, and measures everything else in the frame.

Door: 2.1m. Window: 1.2m. Wall: 8.0m.

Hough transform + Sobel (native C) + ruby-libgd.

https://rubystacknews.com/2026/03/23/ruby-sees-the-world-automatic-measurement-from-photos/

#Ruby #ComputerVision #RubyDev #Photogrammetry

Ruby Sees the World: Automatic Measurement from Photos

Ruby Sees the World: Automatic Measurement from Photos March 23, 2026 Published on RubyStackNews What if Ruby could look at a photo of a house and tell you the width of the door, the height of the …

Linking Ruby knowledge from the most remote places in the world.

U3dn Mar 22

Korean Traditional Interior Items #Korean #Traditional #Interior #Items #Photogrammetry #Pbr #Textures #Meshes #Prefabs #AssetStore

https://u3dn.com/packages/korean-traditional-interior-items-252023

Michael Emory🎮🐧🔺Mar 17

Scanned it with Sony Alpha 6400 with 18-135 Sony Lens, RealityScan 2.1

#photogrammetry #realityscan #3D

Michael Emory🎮🐧🔺Mar 17

David Bust Scan

https://skfb.ly/pHEHR

I Scanned it with Sony Alpha 6400 with 18-135 Sony Lens, RealityScan 2.1

#photogrammetry #realityscan #3D

David Bust Scan - 3D model by Michael Emory Cerquoni (@nebadon2025)

Scanned with Sony Alpha 6400 with 18-135 Sony Lens - David Bust Scan - 3D model by Michael Emory Cerquoni (@nebadon2025)

Sketchfab

Lord Doctor Olle W Mar 17

I’ve updated my runestone website and added scanned 3D models to some pages.

One of the stones with a 3D model is the runestone U 1125 which has an inscription in elder futhark and ornamentation of a person holding up their hands. There is also an inscription on one if the back sides that can be viewed by rotating the model on the page.

I’ve also restructured the pages so it will be easier to add new runestones. And I added a Swedish version of the site where I plan to post a few longer descriptions.

https://www.varangianbiker.com/locations/uppland/u-1125/

#runestones #3DModel #photogrammetry