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Polynomial texture mapping and related imaging technologies for the recording, analysis and presentation of archaeological materials

Polynomial texture mapping and related imaging technologies for the recording, analysis and presentation of archaeological materials
Polynomial texture mapping and related imaging technologies for the recording, analysis and presentation of archaeological materials
Polynomial Texture Mapping (PTM; Malzbender et al 2001) uses multiple images to capture the reflectance properties of a given surface. Multiple captures may be combined in order to produce interactive, relit records of the material recorded. In addition recent research enables the capture and rendition of interactive PTMs for detailed examination of surface details. Cultural heritage examples of the technology include work on Cuneiform tablets, numismatic archives and lithic artefacts.

This paper will describe the PTM data capture and processing technologies developed by the University of Southampton, with support from Hewlett Packard Labs Palo Alto. It will also identify the perceived archaeological potential of additional recording to supplement the standard PTM datasets, including the recording of the surface BRDF (bi-directional reflectance distribution function) and accurate extraction of surface normals. Such data offer considerable, under-exploited value in production of comparative conservation datasets. They also enable new forms of analysis, and the possibility for a step-change in the visual fidelity of reconstructions of archaeological surfaces.

Case studies will include ongoing work on the examination of Roman wall paintings, Roman stylus writing tablets, medieval wood, bronze artefacts from a maritime contexts, Neolithic architectural plaster, excavation contexts, brick stamps and sculpture. Each of these presents particular challenges and opportunities for recording, analysis and presentation.

The paper will conclude by identifying the synergies between PTM, related imaging technologies, photogrammetry and non-contact digitisation through recent case studies on African rock art and on excavated material from the Portus Project (www.portusproject.org). It will identify the ongoing challenges and proposed future developments.
rtisad, rti, ptm, acrg
Earl, Graeme
724c73ef-c3dd-4e4f-a7f5-0557e81f8326
Beale, Gareth
52eb370c-cad0-4e4c-99c4-9efa1b2c1197
Martinez, Kirk
5f711898-20fc-410e-a007-837d8c57cb18
Pagi, Hembo
70a06493-d704-402e-ba7f-ccd57113e706
Earl, Graeme
724c73ef-c3dd-4e4f-a7f5-0557e81f8326
Beale, Gareth
52eb370c-cad0-4e4c-99c4-9efa1b2c1197
Martinez, Kirk
5f711898-20fc-410e-a007-837d8c57cb18
Pagi, Hembo
70a06493-d704-402e-ba7f-ccd57113e706

Earl, Graeme, Beale, Gareth, Martinez, Kirk and Pagi, Hembo (2010) Polynomial texture mapping and related imaging technologies for the recording, analysis and presentation of archaeological materials At ISPRS Commission V Midterm Symposium, United Kingdom. 6 pp.

Record type: Conference or Workshop Item (Paper)

Abstract

Polynomial Texture Mapping (PTM; Malzbender et al 2001) uses multiple images to capture the reflectance properties of a given surface. Multiple captures may be combined in order to produce interactive, relit records of the material recorded. In addition recent research enables the capture and rendition of interactive PTMs for detailed examination of surface details. Cultural heritage examples of the technology include work on Cuneiform tablets, numismatic archives and lithic artefacts.

This paper will describe the PTM data capture and processing technologies developed by the University of Southampton, with support from Hewlett Packard Labs Palo Alto. It will also identify the perceived archaeological potential of additional recording to supplement the standard PTM datasets, including the recording of the surface BRDF (bi-directional reflectance distribution function) and accurate extraction of surface normals. Such data offer considerable, under-exploited value in production of comparative conservation datasets. They also enable new forms of analysis, and the possibility for a step-change in the visual fidelity of reconstructions of archaeological surfaces.

Case studies will include ongoing work on the examination of Roman wall paintings, Roman stylus writing tablets, medieval wood, bronze artefacts from a maritime contexts, Neolithic architectural plaster, excavation contexts, brick stamps and sculpture. Each of these presents particular challenges and opportunities for recording, analysis and presentation.

The paper will conclude by identifying the synergies between PTM, related imaging technologies, photogrammetry and non-contact digitisation through recent case studies on African rock art and on excavated material from the Portus Project (www.portusproject.org). It will identify the ongoing challenges and proposed future developments.

Full text not available from this repository.

More information

Published date: June 2010
Venue - Dates: ISPRS Commission V Midterm Symposium, United Kingdom, 2010-06-01
Keywords: rtisad, rti, ptm, acrg

Identifiers

Local EPrints ID: 153235
URI: http://eprints.soton.ac.uk/id/eprint/153235
PURE UUID: 57bff4ca-2139-43d0-a20e-3966dca0b9a3
ORCID for Graeme Earl: ORCID iD orcid.org/0000-0001-9077-4605
ORCID for Kirk Martinez: ORCID iD orcid.org/0000-0003-3859-5700

Catalogue record

Date deposited: 19 May 2010 08:09
Last modified: 18 Jul 2017 12:51

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Contributors

Author: Graeme Earl ORCID iD
Author: Gareth Beale
Author: Kirk Martinez ORCID iD
Author: Hembo Pagi

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