Multi-spectral Imaging System (IWN) for the Digitization and Investigation of Cultural Heritage

El-Rifai, Ibrahim; Mahgoub, Hend; Ide‐Ektessabi, Ari

doi:10.1007/978-3-319-48496-9_19

Cited by 9 publications

(5 citation statements)

References 20 publications

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“…There was a very thin layer of lime. Before removing this layer, different electromagnetic wavelengths of visible light (VIS), near-infrared (IR), and ultraviolet (UV) with special filters were used [17]. The imaging was done with 40-watt fluorescent lamps, and the reflected radiation was recorded by cameras sensitive to this spectrum region [18].…”

Section: Uv and Ir Imagingmentioning

confidence: 99%

Analysis and Treatment of Mural Paintings Covered With Plaster Layers in Yakan House in Historic Cairo

M.,

A.,

Sh.

et al. 2023

Egyptian Journal of Archaeological and Restoration Studies

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Yakan House is one of the historical houses in Cairo, dating back to the beginning of the nineteenth century. The house was neglected until its elements deteriorated until it was owned by a person interested in heritage who pledged to preserve it to become a cultural center to revive traditional crafts after architectural restoration. During the architectural restoration, blurred and unclear wall paintings dating back to the era of construction were discovered, and they were covered with a thick layer of mortar. Therefore, the research aims to study the discovered wall paintings and remove the plaster layer that covers them by modern mechanical, chemical and scientific detection methods. It was photographed using infrared (FTIR) and ultraviolet rays, and was examined using light microscopy and examination and analysis electron microscopy (SEM-EDAX).It has been identified that the preparation layer consists of calcite (CaCO3), quartz (SiO2) and gypsum (CaSO4.2H2O), and that the dark blue color is composed of lapis lazuli, and that the purple color is a result of mixing blue and red together, and that the brown color is a mixture of red with the black. As for the dark yellow color, it consists of iron oxide (goethite). And through the analysis (FTIR) it was found that the adhesive used to bind the coloring material is gum arabic. Then the mural was treated, and this included removing the thick mortar layer with mechanical and chemical cleaning, replacing the damaged layers of preparation, and strengthening and fixing the discovered drawings.

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Section: Uv and Ir Imagingmentioning

confidence: 99%

Analysis and Treatment of Mural Paintings Covered With Plaster Layers in Yakan House in Historic Cairo

M.,

A.,

Sh.

et al. 2023

Egyptian Journal of Archaeological and Restoration Studies

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“…Similarly, an auspicious pattern image also shows the frequency of tonal change. Several studies in the literature have discussed the applications of texture feature analysis to painting restoration [9][10][11], painting classification by artistic genre [12][13][14], painting style recognition [15,16], and raw material investigation [11,17]. Cai and Siegel [9] explored two texture features-energy (or homogeneity) and entropy (or disorderliness)-to model the visual appearance of paintings before and after surface varnishing.…”

Section: Texture Feature Analysis For Paintingsmentioning

confidence: 99%

Style Recognition of Door God Paintings by Hypothesis Testing for Texture Features of Painting Patterns

Wun

et al. 2022

Applied Sciences

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Many studies in the literature have presented multiple remote sensing techniques for defect inspection of paintings. At present, however, papers on defect inspection and restoration of oriental architectural arts—such as door god paintings—are still rare. If an aged and damaged door god painting needs a restoration, then following the style and treatment skill of the original artist as much as possible is important for the restoration. Unfortunately, it is usually difficult to access the original artists for some of the aged door god paintings. This paper considers the texture features of auspicious patterns of armors on warrior door gods as useful information to recognize styles of door god paintings by unknown artists. First, a two-level two-dimensional discrete wavelet transform coupled with co-occurrence matrix calculation was adopted to analyze the texture features, based on the descriptors of angular second moment (ASM), entropy (ENT), contrast (CON), homogeneity (HOM), dissimilarity (DIS), correlation (COR), and cluster tendency (CLU), in the four orientations of 0° (horizontal), 45° (vertical), and 90° and 135° (double diagonal). Second, a two-tailed t-test based on the analyzed texture features was introduced into the hypothesis testing for demonstrating the master and apprentice relationships between the surveyed artists, and for recognizing the door god painting styles of unknown artists as well. The experimental results show that the proposed method effectively describes the texture features of the auspicious patterns of the surveyed door god paintings, and is able to determine the useful co-occurrence features for recognizing unknown artists’ painting styles.

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“…A calibration target and a ruler should be in the field of view of each image, however, if this is not possible, an additional sequence of images can be captured of the targets under the same conditions [19], [54] for colour and luminance calibration. Targets used in the literature include colour targets [19], [35], [54], [83], [130] and Spectralon reflectance targets [19], [54], [130], [131]. Some of the colour targets are only calibrated for visible light, whereas Spectralon has uniform reflectance over ultraviolet, visible and infrared wavelengths [19], [54].…”

Section: The Capture Processmentioning

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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Multi-spectral Imaging System (IWN) for the Digitization and Investigation of Cultural Heritage

Cited by 9 publications

References 20 publications

Analysis and Treatment of Mural Paintings Covered With Plaster Layers in Yakan House in Historic Cairo

Analysis and Treatment of Mural Paintings Covered With Plaster Layers in Yakan House in Historic Cairo

Style Recognition of Door God Paintings by Hypothesis Testing for Texture Features of Painting Patterns

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

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