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3D laser scanning the SLAM duho

St Louis Art Museum, St Louis, MO, USA

Accession number 168:1981

Friends Fund and Primitive Art Society Fund in honor of Morton D May

curator and conservator with wooden figure in lab 

Joanna Ostapkowicz and Joseph Parsons getting ready to 3D laser scan the SLAM duho| at the St. Louis Art Museum. Photo credit: Matthew H Robb

The SLAM duho| has been carved from a single piece of wood. The sculpture had to be turned over carefully three times so that all parts of the surface could be reached with the 3D laser scanner.

view of underside of wooden figure   

The SLAM duho from underneath.

Once 3D laser scanning was complete, data processing started. This involved aligning all the data sets taken from different positions together, and filling in any small holes in the data where the scanner did not pick up the surface of the duho. High resolution images were mapped onto the 3D model of the duho in areas of particular interest.

Click on the thumbnails below to see the results of the 3D laser scanning of the SLAM duho.

Screenshot of the 3D computer model of the SLAM duho (top view). Screenshot of the 3D computer model of the SLAM duho (bottom view). Screenshot of the 3D computer model of the SLAM duho (looking down onto the top of the head). Screenshot of the 3D computer model of the SLAM duho (looking up from the feet). Screenshot of the 3D computer model of the SLAM duho with colour photos mapped onto the 3D model in areas of particular interest. Screenshot of the 3D computer model of the SLAM duho with colour photos mapped onto the 3D model. The artist used a bifurcated piece of wood to carve the duho, and the growth rings of the young branch used to carve the left leg (seen here on the right) can be seen in the foot. Screenshot of the 3D computer model of the SLAM duho with colour photos mapped onto the 3D model. Damage to the left leg: these cut marks – from a sharp, metal instrument – were inflicted later in the duho's history. Screenshot of the 3D computer model of the SLAM duho with colour photos mapped onto the 3D model. A resinous adhesion on the left leg.

The video clip below shows the 3D model with a texture (colour map) applied.

Further information

A 3D interactive viewer| has also been created of the& SLAM duho.