LiDAR Archives - Digital Urban

World’s Most Realistic 3D City Models – C3?

Andy — Wed, 03 Jun 2009 09:47:00 +0000

We have covered C3 a number of times here on digital urban, a company that is producing high quality 3D models – a demo is below:

Trondheim 3D demo in HD from Morten Jacobsen on Vimeo.
Ludvig Emgard of C3 Technologies presented a talk at this years Where 2.0 entitled “World’s Most Realistic 3D City Models?”. The movie below is well worth a look as it talks though the technology behind the modelling process:

The process is automated, with the textures and mesh produced purely from imagery and not from the more traditional LiDAR approach.

See http://kart.sesam.no/3d/ for a 3D flythough (Windows only at the moment) and http://www.c3technologies.com for more info.

The post World’s Most Realistic 3D City Models – C3? appeared first on Digital Urban.

World’s Most Realistic 3D City Models – C3?

Andy — Wed, 03 Jun 2009 09:47:00 +0000

We have covered C3 a number of times here on digital urban, a company that is producing high quality 3D models – a demo is below:

The process is automated, with the textures and mesh produced purely from imagery and not from the more traditional LiDAR approach.

See http://kart.sesam.no/3d/ for a 3D flythough (Windows only at the moment) and http://www.c3technologies.com for more info.

The post World’s Most Realistic 3D City Models – C3? appeared first on Digital Urban.

Vienna 3D – Visualization by Arkadiusz Szadkowski

Andy — Mon, 01 Jun 2009 09:30:00 +0000

Vienna 3D – Visualization of Arkadiusz Szadkowski MSc from Arkadiusz Szadkowski on Vimeo.

Arkadiusz sent as a email over the weekend about the visualisation of Vienna he has produced as part of his Diploma at the Warsaw University of Technology
(Department of Photogrammetry and Remote Sensing) & Vienna University of Technology
(Institute of Photogrammetry and Remote Sensing).

We are impressed and it shows how times have changed – this is a high quality model with accuracy on the XY of 0,3 metre and Z axis of 0,2 metre. Where as once such models would of been team built with high end specialized software of note in the movie is the use of Google SketchUp.

Basic data was provided by the Surveying Department of the City of Vienna, Austria with 300 terrestrial images collected by Arkadiusz himself. The full list of software used is as follows:

# Adobe After Effects CS4 (intro) – we like the clouds…
# DTMaster (filtering, postprocessing LiDAR (ALS) data)
# SCOP++ (DTM & nDSM generatiing)
# GML Undistorter (undistorion of pictures)
# GVE (supporting modelling)
# Ruby Scripts (import point cloud to SketchUp)
# Google SkecthUp 7 (modeling, texturing, animating)
# Gimp (2D graphic processing)
# Windows Movie Maker (final sync & animation)

See http://city3d.blogspot.com/ and http://miasta3d.blox.pl/html for more information. You can also view and download the models via the 3D Warehouse (direct link).

The post Vienna 3D – Visualization by Arkadiusz Szadkowski appeared first on Digital Urban.

Textured LiDAR Scan of London: 1.5 Billion Points

Andy — Fri, 15 May 2009 11:56:00 +0000

The movie below provides a quick glimpse of our latest dataset in CASA – a LiDAR scan of London within the M25 ring road, the model is made up of in excess of 1.5 billion points:

LiDAR Scan of London – Textured from digitalurban on Vimeo.

The points have been converted to a surface, texture mapped with aerial imagery and visualised in LandXplorer by Autodesk. A non textured mapped version can be seen below:

LiDAR Scan of London from digitalurban on Vimeo.

Thanks go to Duncan Smith at CASA for doing the processing and Cities Revealed for the data supplied by Landmap.

Note – the movie is slightly lower quality than our normal output here at digital urban as our Mac has been nicked, normal service should return next week…

The post Textured LiDAR Scan of London: 1.5 Billion Points appeared first on Digital Urban.

Textured LiDAR Scan of London: 1.5 Billion Points

Andy — Fri, 15 May 2009 11:56:00 +0000

The movie below provides a quick glimpse of our latest dataset in CASA – a LiDAR scan of London within the M25 ring road, the model is made up of in excess of 1.5 billion points:

LiDAR Scan of London – Textured from digitalurban on Vimeo.

The points have been converted to a surface, texture mapped with aerial imagery and visualised in LandXplorer by Autodesk. A non textured mapped version can be seen below:

LiDAR Scan of London from digitalurban on Vimeo.

Thanks go to Duncan Smith at CASA for doing the processing and Cities Revealed for the data supplied by Landmap.

Note – the movie is slightly lower quality than our normal output here at digital urban as our Mac has been nicked, normal service should return next week…

The post Textured LiDAR Scan of London: 1.5 Billion Points appeared first on Digital Urban.

LiDAR Scan of London in LandXplorer

Andy — Tue, 05 May 2009 16:09:00 +0000

The movie below details a 1 meter resolution scan of London using LiDAR (an optical remote sensing technology that measures properties of scattered light to find range and/or other information of a distant target via laser pulses, Wiki). The ability to load in the entire scan of London – some 1,500 kmsq – is thanks to LandXplorer by Autodesk and we are impressed:

LiDAR Scan of London from digitalurban on Vimeo.

Autodesk LandXplorer offers a collection of functions to interactively compose, present, explore, analyze, and edit geodata-based 3D models. In a sense, they represent a content management system for 2D and 3D geoinformation, which supports the effective handling of geodata assets.

Take a look at http://www.3dgeo.de/products.aspx for more info, we will have more on the LiDAR scan of London in future posts.

Thanks go to Duncan Smith at CASA for doing the processing and Cities Revealed for the data supplied by Landmap.

The post LiDAR Scan of London in LandXplorer appeared first on Digital Urban.

Virtual Stonehenge: A LiDAR Survey Flythrough

Andy — Mon, 28 Jul 2008 15:27:00 +0000

A Virtual Stonehenge Landscape from Wessex Archaeology on Vimeo.

Its not urban but is so nice that its worth making an exception to look at the results of a LiDAR survey around the area of Stonehenge.Prehistoric burial mounds (barrows), the great Cursus (a 2km Neolithic monument), the Bronze Age Avenue which links Stonehenge to the River Avon, and other henges such as Woodhenge and Durrington Walls are all clearly visible.

The movie was produced by Tom Goskar from Wessex Archaeology

To find out more technical information about the survey, visit the Stonehenge LiDAR section of the English Heritage website.

See Tom’s blog entry for more information.

The post Virtual Stonehenge: A LiDAR Survey Flythrough appeared first on Digital Urban.

Virtual Stonehenge: A LiDAR Survey Flythrough

Andy — Mon, 28 Jul 2008 15:27:00 +0000

A Virtual Stonehenge Landscape from Wessex Archaeology on Vimeo.

The movie was produced by Tom Goskar from Wessex Archaeology

To find out more technical information about the survey, visit the Stonehenge LiDAR section of the English Heritage website.

See Tom’s blog entry for more information.

The post Virtual Stonehenge: A LiDAR Survey Flythrough appeared first on Digital Urban.