Post-medieval

AD 1500 to AD 1800
The Post-Medieval Period saw the evolution of the British culture into the society we recognise today. During this time, there was a huge expansion of scientific knowledge, industrialisation and urbanisation as well as wider global connections and movement of people across the world. Many archaeological sites are industrial in nature, associated with the mass production of objects such as bricks, bottles, ceramics and textiles. In Scotland, the Highland Clearances have left the ruinous remains of farming townships across many rural areas.

King Alfred Statue King Alfred Statue Head

Post-medieval Roman

King Alfred Statue

The statue of King Alfred has stood in the garden of Trinity Church Square since…

In Situ20 September 2024

The 18th century military road in Inchnacardoch Forest Post-medieval

The 18th century military road in Inchnacardoch Forest

The 18th century military road network in the Highlands was constructed by General George Wade…

In Situ27 August 2024

Bringing Highland History to Life Post-medieval

Bringing Highland History to Life

The Tacksman’s House at High Life Highland's Highland Folk Museum is the largest of the…

In Situ12 October 2022

Digital Imaging at St Giles in the Fields Graveyard, London Post-medieval

Digital Imaging at St Giles in the Fields Graveyard, London

St Giles in the Fields is a Grade I listed church in the heart of…

In Situ5 August 2022

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360⁰ Virtual Tours

Immersive way of making remote heritage sites more accessible. By taking a series of 360⁰ images, or spherical panoramas, we can create virtual tours of archaeological sites and historic buildings.

UAV Survey

Drones in the heritage sector are used as a low-level aerial method of recording archaeological sites, historic buildings, tall monuments, and landscapes. Equipped with high-resolution cameras, drones can access high-level structures to facilitate the inspection of historic sites. Accurate 3D records are generated from gathered images and used for survey, conservation, and maintenance work.

LIDAR analysis

LiDAR (Light Detection and Ranging) is a remote sensing technique, used for high-resolution survey of landscapes.
The technology is based on the use of a laser scanner, mounted on an aircraft. Laser scanners emit pulses of laser light at a rate of many hundreds of pulses per second,
and measure the time it takes for the reflection of that pulse to return to the instrument; a GPS is used to plot the coordinates of each measurement. Using this method, computers are able to process millions of measurements in a dataset called a ‘point cloud’. In turn, this point cloud is then used to make very detailed presentations of the ground surface, called ‘digital terrain models’, often referred to as ‘DTMs’.

3D Reconstructions

Digital reconstructions allow us to visualise lost archaeological sites or piece together fragmented artefacts recovered during excavations. Particularly useful in the analysis and interpretation of fragile archaeological finds, 3D reconstructions allow specialists to examine objects in a non-invasive way and experiment with innovative methods of communicating the results of these analyses.

Based on photos, archival maps, LiDAR data or 3D scans, digital models of cultural assets can be created and experienced in the virtual world by the viewer. Those reconstructions provide a way for audiences to explore artefacts from afar and present a fascinating new opportunity for engagement with the past.

3D printing

Archaeological artefacts can provide a tangible link to people who lived centuries, or even millennia, before us. However, most are too fragile to be handled freely and are viewed behind glass or stored in archives. 3D prints of artefacts, made from highly accurate 3D models created from data gathered through digital recording methods, can provide an opportunity for a tactile experience, allowing a more personal connection. 3D printing technology is also making heritage more inclusive and accessible for people with visual impairments – dedicated handling kits are gaining more popularity across cultural institutions in the UK and beyond.

Reflectance Transformation Imaging (RTI)

Reflectance Transformation Imaging ( RTI) balances between 2D and 3D imaging. Whilst it captures 2D images, it allows for the object recorded to be digitally re-lit, creating an illusion of 3D surface. RTI dataset is created by capturing a series of images from a fixed camera position with the artefact illuminated by a light source incrementally moved around on a hemispherical grid. It records the subject’s shape and colour and is particularly useful for enhancing fine surface detail invisible under regular illumination.

Laser Scanning

Terrestrial laser scanning is one of the primary techniques that enable the rapid and highly-accurate acquisition of 3D data.

The scanners measure the 3D geometry by sending a laser beam to the surface of the recorded structure. The beam hits the surface and returns to the scanner – based on those two events the scanners can calculate distances and angles, assigning each measured point a precise location in 3D space.

Capturing millions of measurements per second, laser scanning became one of the primary tools used in surveying due to its speed and ability to produce high-resolution data. Laser scanned point clouds can provide valuable metric data, giving cross sections through buildings, or accurate terrain models of slight topographic features. 3D data can be processed into highly accurate CAD models for visualisation, or used to extract detailed 2D elevations and plans.

Photogrammetry

A photography-based 3D recording method using 2D images to extract 3D information. This is done by reading perspective variations and differences in lines of sight in multiple overlapping images.

Its adaptability, scalability and potential to create highly accurate 3D outputs, regardless of the size of the subject recorded, made photogrammetry a widely popular 3D recording technique.

Used in the heritage sector in a broad spectrum of applications: from creating a detailed record of archaeological sites and buildings to conservation monitoring and long-term preservation of fragile museum collections.