Pompeii New Secrets Revealed x330 Case Study

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PompeiiNew Secrets Revealedx330 Case Study 04

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Pompeii: New Secrets Revealed

With unparalleled access to Pompeii and featuring cutting edge 3D scanning technologies, Mary Beard guides us through this amazing slice of the ancient world.

Client and TeamPompeii: New Secrets Revealed for Lion Television

ScanLAB Projects:Matthew Shaw, William Trossell, Julia Schuetz, Luca Veronese, Soma Sato

Lion Television:Presenter: Mary BeardDirector - Ian HuntProducer - Elena MortellitiExecutive Producers - Richard Bradley and Caterina Turroni.

About the ProgramPompeii New Secrets Revealed uncovers the final mysteries of Pompeii. Presenter Mary Beard, renowned classicist and TV historian, explores what life was like in one of the world’s most extraordinary and iconic archaeological sites.

Undoubtedly one of the most tragic gems of the Roman world, Pompeii has laid deep beneath the volcanic ashes of the Mount Vesuvius since the eruption of 79 AD. Utilising the latest in CT, laser and photogrammetric 3D scanning techniques we’ve finally been able to peer inside the casts of Pompeii, reveal the position of slaves quarters hidden underground and examine in unprecedented detail the recently restored frescoes.

Mary unpicks the human stories behind the tragic figures: gladiators, slaves, businesswomen and children who’s remains are famously preserved at Pompeii. With help from expert Estelle Lazer and her team from University of Sydney the CT data and x-rays have allowed forensic archaeologists to challenge previous assumptions about their lives and discover the real identities behind the people unable to escape the eruption.

Captured in forensic detail, the scans of Pompeii represent one of the most comprehensive digitisations of Pompeii to date. Covering the whole archaeological site the scans allow it to be explored like never before.

The CT data, terrestrial laser scanning and aerial photogrammetry was captured on location in Pompeii over 10 days in September 2015. ScanLAB Projects completed all data processing and graphics for the 60 minute documentary which is a Lion TV production for BBC ONE. First screen BBC ONE, 9:00pm, Thursday 3rd March 2016.

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Mithras Temple

The Bambino found near his assumed family

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Julia Felix

The extensive estate of Julia Felix, one of the wealthiest inhabitants of Pompeii

Roman Baths

A view from within mens public baths reveals the seperate and less ornate womens baths hidden behind.

Championet Residence

Transitioning seamlessly between live action footage and scan data, Mary appears to wander through the pointclouds.

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Technique and Workflow

On location:The ScanLAB team & drone pilot travelled to Pompeii in September 2015 with a traditional film crew and presenter Mary Beard. A CT scanner and technicians were provided from Phillips and housed onsite for the duration of the shoot.

Julia Felix House & Estate:2 days on site¼ resolution scans120 Scans above groundExternal colour by Nikon D7000

The entire estate of Julia Felix was scanned in just over 2 days using two scanners two faro focus 330x’s at ¼ resolution quality. Including outdoor and indoor spaces all currently under going conservation work. Referencing was completed with 145mm spheres and Double sided A5 Paper Targets. GPS locations of spheres were taken to aid global alignment.

Championnet House:1 day on site¼ resolution scans for both above and below ground.52 scans in totalExternal colour by Nikon D7000

The Championet was captured using two faro focus 330x’s at ¼ resolution quality. Working in separate parts of the house both above and below ground a combined reference set allowed for the 2 scanners to link up without any overlap in scan locations. Referencing was completed with 145mm spheres and Double sided A5 Paper Targets. GPS locations of spheres & natural references were taken to aid global alignment.

Forum Baths:1 day on site¼ resolution scans above ground27 scans in totalExternal colour by Nikon D7000

The Roman Baths were captured using two scanners working in tamdem to cover ground as quickly as possible before members of the public intrupted scans. Referencing was completed with 145mm spheres and Double sided A5 Paper Targets.

House of the Venus in the Shell:½ day on site¼ resolution scans for both interior and exterior scans.20 scans in totalExternal colour by Nikon D7000

Completed in half a day onsite with two scanners working in tamdem. Rooms, courtyards and street context were all captured. GPS locations of spheres and references pegs left in from the Julia Felix location allowed the datasets to be combined and all aigned together. Referencing was completed with 145mm spheres.

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CT Data - Bambino

To reveal the secrets hidden inside, the casts of Pompeii are CT scanned.

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Amphitheatre & Casts :1½ day on site¼ resolution scans for both interior and exterior scans.35 scans in totalExternal colour by Nikon D7000

The Amphitheatre and Cast Exhibition was scanned using 2 Faro Focus 330x’s. The limited amount access required both scanners to be present in the same room simultaneously. Referencing was completed with 145mm spheres and the alignment of data was improved with additional scan to scan alignment in scene.

Garden of the Fugitives:½ day on site¼ resolution scans for interior spaces½ resolution scans for context25 scans in totalExternal colour by Nikon D7000

Approaching the location from opposite ends, two scanners were used to capture this location. 1/2 Resolution scans from high vantage points were used to a capture the location context, whilst the other team captured the fugitive figures and gardens. Referencing was completed with 145mm spheres.

Mosaic House:½ day on site¼ resolution scan Interior.1 Interior Scan, 27 Exterior ScansExternal colour by Nikon D7000

The Mosaic House was captured in a half day. Two scanners were used, the first circling the external spaces of the property whilst the first concentrated on the mosaic floors. Referencing was completed with 145mm spheres.

Aerial PhotogrammetrySensefly - ebeePix4d & Agisoft1250 colour images & 24 DGPS locations

To provide a graphic overview of the archaeological site, our pilot flew a fixed wing survey drone over Pompeii. The images captured were processed in photogrammetry software (agisoft) to create a pointcloud which was merged with the datasets from the Focus x330. 1250 images were taken in 6 separate flight paths over Pompeii.

Processing:All locations were aligned using FARO Scene 5.4 (at the time the latest version of Scene available). Following filtering and automatic target detection and successful target based alignment was completed for all locations. The locations were then globally aligned via csv to DGPS survey points. Colour processing was completed in PTGui before application to the scan data in FARO Scene.

Visualisation and Rendering:For the documentary ScanLAB Projects completed the rendering of the pointcloud using both Bentley Pointools v8i alongside a series of in house rendering plugins developed for larger data sets.

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CT Data - Beggers Head

Overturning previous stories and assumptions the CT provides new insights into the lives of those who lived at Pompeii

The Cast Court

The casts were also scanned within the exhibition space, before being CT scanned.

Pompeii - Areial Photogrammetry

Merged into one complete dataset the LiDAR and Areial photogrammetry combine to create a comprehensive map of Pompeii

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The Success of the x330Working in one the world’s most extraordinary and iconic archaeological sites posed difficult problems for the team. The schedule provided only limited access to locations which at times were also shared with both conservationists and members of the public. The x330‘s rapid capture, lightweight construction and extensive range was key to meeting the demands of this shoot.

The x330 enables new opportunities for film and broadcast programming. Revising old stories in ways never imagined and uncovering new, hidden evidence for unproven theories. In doing so x330 is establishing a new graphic standard for documentary making, whilst also providing an invaluable digital record for cultural heritage. About ScanLAB ProjectsScanLAB Projects are one of the UK’s leading providers of large scale 3D scan data. They specialise in visualisation of pointcloud data for film, tv, advertising and the creative industries. Their work has been broadcast internationally and exhibited at leading cultural institutions across the world. They are currently working with leading architects, scientists, broadcasters and artists on a portfolio of projects worldwide.

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Estate of Julia Felix

An image from one of the map sequences combining the survey drawing and pointcloud

Documents

Pompeii New Secrets Revealed x330 Case Study