Advanced image analysis for the preservation of cultural heritage

Christens-Barry, William A.; Toth, Michael B.; Boydston, Kenneth

doi:10.1117/12.839000

Cited by 10 publications

(10 citation statements)

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“…The optimal combination of wavelengths and filters depends on the research question and the artefact itself, however, little research is available [19], [20], [47]. The object's condition may affect the success of MSI, including whether it is framed or mounted [75], has undergone previous conservation treatment [25], [57] or has experienced any damage (such as fire [22], [29], water, mould, deliberate abrasion [47], [52], etc ). Large objects that do not fit within a field of view may be captured in sections and reassembled using mosaicing [26], [45], [76], [77].…”

Section: Considering the Objectmentioning

confidence: 99%

Understanding multispectral imaging of cultural heritage: Determining best practice in MSI analysis of historical artefacts

Jones¹,

Duffy

Gibson³

et al. 2020

Journal of Cultural Heritage

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Although multispectral imaging (MSI) of cultural heritage, such as manuscripts, documents and artwork, is becoming more popular, a variety of approaches are taken and methods are often inconsistently documented. Furthermore, no overview of the process of MSI capture and analysis with current technology has previously been published. This research was undertaken to determine current best practice in the deployment of MSI, highlighting areas that need further research, whilst providing recommendations regarding approach and documentation. An Action Research methodology was used to characterise the current pipeline, including: literature review; unstructured interviews and discussion of results with practitioners; and reflective practice whilst undertaking MSI analysis. The pipeline and recommendations from this research will improve project management by increasing clarity of published outcomes, the reusability of data, and encouraging a more open discussion of process and application within the MSI community. The importance of thorough documentation is emphasised, which will encourage sharing of best practice and results, improving community deployment of the technique. The findings encourage efficient use and reporting of MSI, aiding access to historical analysis. We hope this research will be useful to digitisation professionals, curators and conservators, allowing them to compare and contrast current practices. Highlights:• A range of approaches are undertaken for multispectral imaging of heritage.• An Action Research methodology was used to characterise the current pipeline.• A set of recommendations for best practice and documentation are provided.

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Section: Considering the Objectmentioning

confidence: 99%

Understanding multispectral imaging of cultural heritage: Determining best practice in MSI analysis of historical artefacts

Jones¹,

Duffy

Gibson³

et al. 2020

Journal of Cultural Heritage

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“…The digital representation of the original analogue map balances preservation and access to the original object, requiring a rigorous process of standardized processing, extensive archival metadata and data management. Advances in lens properties, sensor and illumination technology have significantly advanced spectral imaging with improvements in customized image capture software, as well as standardized image capture and image signal processing techniques (Christens-Barry et al, 2009;France et al, 2010).With its ability to spectrally classify materials and spectrally 'map' their distribution over the surface of cartographic materials, hyperspectral imaging is now being used as a first point of examination for many Library cartographic collections.…”

Section: Hyperspectral Imaging Of the Waldseemü Ller 1507 World Mapmentioning

confidence: 99%

‘The Waldseemüller Map’ – A Gift of Germany to the World

France

Toth

2013

The Cartographic Journal

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“…Data are stored using broadly accepted standards for later retrieval and analysis, focusing on accurate, standardized metadata and file formats. 7 The system provides the foundation for layering levels of spectral data and creates a composite cube of this data from noninvasive imaging that can map and link additional layers of information with other analytical modalities. The control of potentially damaging light levels and fluctuating environmental factors found in other analytical techniques enables this spectral imaging technique to minimize the impact on fragile collection items.…”

Section: Library Of Congress Spectral Imaging Systemmentioning

confidence: 99%

Advanced Spectral Imaging for Noninvasive Microanalysis of Cultural Heritage Materials: Review of Application to Documents in the U.S. Library of Congress

France

2011

Appl Spectrosc

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Hyperspectral imaging was originally developed for remote sensing and astronomical applications, but adaptations of this technology have been of great benefit to the preservation of cultural heritage. Developments in noninvasive analytical techniques have advanced the preservation of cultural heritage materials by enabling the identification and analysis of a range of materials, utilizing their unique spectral response to nondestructively determine chemical composition, and determining states of deterioration and change due to environmental conditions. When used as a tool for noninvasive characterization of cultural heritage, these spectral imaging systems allow the collection of chemical identification information about materials without sampling, which is a critical factor for cultural heritage materials. The United States Library of Congress has been developing the application of hyperspectral imaging to the preservation and analysis of cultural heritage materials as a powerful noncontact technique. It allows noninvasive characterization of materials, by identifying and characterizing colorants, inks, and substrates with narrow-band illumination to protect the object while also monitoring deterioration or changes due to exhibit and other environmental conditions. Contiguous illumination from the ultraviolet, visible, and infrared spectral regions allows the capture of lost, obscured, and deteriorated information. The resulting image cube allows greater capabilities for mapping and coordinating a range of complementary chemical and spectral analyses. The capabilities of this technique are illustrated by a review of results from analysis of the Waldseemü ller World Map, the L'Enfant plan for Washington, D.C., and the first draft of the U.S. Declaration of Independence.

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Advanced image analysis for the preservation of cultural heritage

Cited by 10 publications

References 0 publications

Understanding multispectral imaging of cultural heritage: Determining best practice in MSI analysis of historical artefacts

Understanding multispectral imaging of cultural heritage: Determining best practice in MSI analysis of historical artefacts

‘The Waldseemüller Map’ – A Gift of Germany to the World

Advanced Spectral Imaging for Noninvasive Microanalysis of Cultural Heritage Materials: Review of Application to Documents in the U.S. Library of Congress

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