1. Articles in category: Art

    1-24 of 113 1 2 3 4 5 »
    1. Non-invasive Survey of Rubens’ Ceiling Paintings at the Banqueting House Whitehall, London, by Means of Optical Coherence Tomography

      Non-invasive Survey of Rubens’ Ceiling Paintings at the Banqueting House Whitehall, London, by Means of Optical Coherence Tomography

      This article presents the results of the examination by means of optical coherence tomography (OCT) of two of the nine monumental ceiling paintings by Peter Paul Rubens and his studio, still located in their original location at the Banqueting House, the only surviving building of the former Whitehall Palace in London. OCT is a non-invasive technique of structural imaging of layers semi-permeable to infrared light. The aim of the 2018 research campaign at the Banqueting House, conducted within the MOLAB programme under the IPERION CH project, was to determine the present condition of the paintings and thus inform decisions about ...

      Read Full Article
    2. OCT Captures Impressionistic Brushstrokes

      OCT Captures Impressionistic Brushstrokes

      Art conservators have enlisted a bevy of imaging techniques, including optical coherence tomography (OCT), to study valuable paintings and ensure their long-term preservation. Even though OCT can generate 3D images of scattering media with micrometer resolution and without destroying its subject, the method’s narrow field of view limits its ability to examine broad regions of an artist’s canvas. Researchers at two U.S. universities have built a hybrid scanning platform that couples OCT with a sampling algorithm to create 3D reconstructions of impressionist oil paintings (Appl. Opt., doi: 10.1364/AO.390326 ). Besides helping art historians to understand ...

      Read Full Article
    3. Multi-scale optical coherence tomography imaging and visualization of Vermeer’s Girl with a Pearl Earring

      Multi-scale optical coherence tomography imaging and visualization of Vermeer’s Girl with a Pearl Earring

      We demonstrate multi-scale multi-parameter optical coherence tomography (OCT) imaging and visualization of Johannes Vermeer’s painting Girl with a Pearl Earring . Through automated acquisition, OCT image segmentation, and 3D volume stitching we realize OCT imaging at the scale of an entire painting. This makes it possible to image, with micrometer axial and lateral resolution, an entire painting over more than 5 orders of length scale. From the multi-scale OCT data we quantify multiple parameters in a fully automated way: the surface height, the scattering strength, and the combined glaze and varnish layer thickness. The multi-parameter OCT data of Girl with ...

      Read Full Article
    4. Radio frequency based material estimation of old age 3D sculptures

      Radio frequency based material estimation of old age 3D sculptures

      The cultural heritage has its importance due to the information communicated by the heritage to the future generations. It is difficult to preserve cultural heritage over the centuries because of their volatile nature. In this paper, the preservation aids are considered for sculptures. The sculpture also includes the type of monument. The challenges are face deterioration during logistic and handling. Hence, it destroys the information carried by sculpture. In addition, the knowledge about materials used for construction of these sculptures help in maintenance of these sculpture. It helps in reconstructing the shape and color, which have been damaged earlier. The ...

      Read Full Article
    5. New Art Scanning Method Offers 3-D Image Of Painting’s Brush Strokes

      New Art Scanning Method Offers 3-D Image Of Painting’s Brush Strokes

      As tempting as it may be, you can’t touch a painting in a museum. And now that many museums are closed, you’re even further from seeing the close-up detail in brush strokes that can tell you so much about how the art was created. But now, a collaboration between artists and researchers at Penn State and the New Jersey Institute of Technology have come closer to developing a method that makes it possible to scan a sizeable section of a painting and turn it into a 3-D model that maintains the fine brush stroke pattern details. This technology ...

      Read Full Article
      Mentions: Yi Yang
    6. Laser-based technique captures 3-D images of impressionist-style brushstrokes

      Laser-based technique captures 3-D images of impressionist-style brushstrokes

      Researchers have developed a new strategy that uses optical coherence tomography (OCT) to acquire both the surface and underlying details of impressionist style oil paintings. This information can be used to create detailed 3-D reconstructions to enhance the viewing experience and offer a way for the visually impaired to experience paintings.

      Read Full Article
      Mentions: Yi Yang
    7. Spectral 3D reconstruction of impressionist oil paintings based on macroscopic OCT imaging

      Spectral 3D reconstruction of impressionist oil paintings based on macroscopic OCT imaging

      Art conservators have adopted optical technologies to improve conservation efforts; laser triangulation, stereophotogrammetry, structured light, laser scanners, and time of flight sensors have been deployed to capture the 3D information of sculptures and architectures. Optical coherence tomography (OCT) has introduced new imaging methods to study the surface features and subsurface structures of delicate cultural heritage objects. However, the field of view of OCT severely limits the scanning area. We present a hybrid scanning platform combined with an effective algorithm for real-time sampling and artifact removal to achieve macroscopic OCT (macro-OCT) imaging and spectral 3D reconstruction of impressionist style oil paintings.

      Read Full Article
      Mentions: Yi Yang
    8. Hidden for centuries, Rembrandt's secrets are finally being revealed

      Hidden for centuries, Rembrandt's secrets are finally being revealed

      Rembrandt van Rijn’s The Night Watch is one of the world’s best-known paintings. Dating from 1642, the strikingly large canvas – 4.6m across and 3.8m high – depicts a group of civic militia guards led by Captain Frans Banninck Cocq, the central figure with a red sash and lacy collar (the man to his left, resplendent in cream doublet and feathered hat, is his lieutenant, Willem van Ruytenburch). The scene, which contains 31 figures in total, is unusually chaotic. Rather than solemnly lining up his subjects for a portrait, as was customary at the time, Rembrandt captures them ...

      Read Full Article
    9. Spectral-Domain Optical Coherence Tomography for the Non-Invasive Investigation of the Pigment Layers of Tang Dynasty Tomb Murals Exhibited in Museums

      Spectral-Domain Optical Coherence Tomography for the Non-Invasive Investigation of the Pigment Layers of Tang Dynasty Tomb Murals Exhibited in Museums

      Optical coherence tomography (OCT) is a non-invasive subsurface three-dimensional imaging technique based on the Michelson interferometer. Due to the nature of non-invasive detection and high-speed acquisition, OCT is efficient for imaging intact objects to generate a complete overview of their microstructure. This paper presents the investigation of the pigment layer and ground layer of three Tang dynasty tomb murals exhibited in museums with Spectral-domain optical coherence tomography (SD-OCT). The investigation results demonstrated that SD-OCT system can obtain clear images of the subsurface microstructure and preservation status of ancient murals and can precisely locate and measure the location of the mural ...

      Read Full Article
    10. Laser cleaning of paintings: in situ optimization of operative parameters through non-invasive assessment by optical coherence tomography (OCT), reflection FT-IR spectroscopy and laser induced fluorescence spectroscopy (LIF)

      Laser cleaning of paintings: in situ optimization of operative parameters through non-invasive assessment by optical coherence tomography (OCT), reflection FT-IR spectroscopy and laser induced fluorescence spectroscopy (LIF)

      Nowadays the use of laser technology as a highly precise tool for the cleaning of paintings is gaining ground. The development of a non-invasive analytical protocol aimed at thorough assessment of the treated surfaces and real time monitoring of the laser cleaning action is thus becoming imperative. This ensures that no side effects (e.g. discoloration, darkening, blackening) will occur on the painting surfaces due to laser ablation. In the present study the potential of the combined use of optical coherence tomography (OCT) and reflection FT-IR spectroscopy for in situ non-invasive assessment of laser cleaning procedures has been investigated on ...

      Read Full Article
    11. A non-invasive investigation of Egyptian faience using a long wavelength optical coherence tomography (OCT) at 2um

      A non-invasive investigation of Egyptian faience using a long wavelength optical coherence tomography (OCT) at 2um

      Egyptian faience is a non-clay ceramic semi-transparent material, formed of a quartz core and alkalilime glaze with some cases exhibiting an interaction layer between them. Several possible glazing methods have been identified. Previous investigations have tried to identify the glazing technique by using the microstructure images obtained from polished sections using scanning electron microscope (SEM). Such techniques require sampling which is not feasible on museum collections. Optical Coherence Tomography (OCT) is a non-invasive 3D imaging technique, that produces virtual crosssections of transparent and semi-transparent materials. Liang et al. (2012a) investigated the feasibility of using OCT to non-invasively investigate microstructures of ...

      Read Full Article
      Mentions: Haida Liang
    12. Toward a multimodal fusion of layered cultural object images: complementarity of optical coherence tomography and terahertz time-domain imaging in the heritage field

      Toward a multimodal fusion of layered cultural object images: complementarity of optical coherence tomography and terahertz time-domain imaging in the heritage field

      Terahertz time-domain imaging (THz-TDI) and spectral-domain optical coherence tomography (SD-OCT) are two techniques capable of providing 3D datasets from which depth profiles and cross-sectional images of an object can be derived. They are novel photonics technologies of particular relevance to the field of heritage science, for which the comprehension of the stratigraphic structure of a cultural heritage object may help in the understanding of its artistic technology and state of preservation. The differences in imaging depth, field of view, and axial/lateral resolutions of the two imaging techniques provide different but complementary information of the same scene. Through the use ...

      Read Full Article
    13. A Micro-Tomographic Insight into the Coating Systems of Historical Bowed String Instruments

      A Micro-Tomographic Insight into the Coating Systems of Historical Bowed String Instruments

      Musical instruments are tools for playing music, but for some of them—made by the most important historical violin makers—the myths hide the physical artwork. Ancient violin-making Masters developed peculiar construction methods and defined aesthetic canons that are still recognizable in their musical instruments. Recently, the focus of scientific investigations has been set on the characterization of materials and methods used by the ancient violin makers by means of several scientific approaches. In this work, the merits of synchrotron radiation micro-computed tomography and optical coherence tomography (OCT) for the investigation of complex coatings systems on historical bowed string musical ...

      Read Full Article
    14. Optical Coherence Tomography (OCT) for Examination of Artworks (Book Chapter)

      Optical Coherence Tomography (OCT) for Examination of Artworks (Book Chapter)

      his book details the application of advanced characterisation techniques and diagnostic tools to heritage science, including the evaluation of heritage assets’ condition, their preservation and restoration. It examines the use of electrochemical techniques in conservation science, with a particular focus on how to solve problems in taking on-site measurements. Specifically, it introduces readers to a new gel polymer (GPE) electrochemical cell developed by the authors for the characterisation of metallic heritage objects. Other techniques used to characterise and monitor reinforced concrete objects in more modern buildings are also covered, including non-destructive electrochemical techniques that allow steel corrosion to be assessed ...

      Read Full Article
    15. Non-invasive survey of pre-restoration condition of the ceiling paintings by Peter Paul Rubens at the Banqueting House Whitehall, London, by means of Optical Coherence Tomography

      Non-invasive survey of pre-restoration condition of the ceiling paintings by Peter Paul Rubens at the Banqueting House Whitehall, London, by means of Optical Coherence Tomography

      This article presents the results of the examination by means of optical coherence tomography (OCT) of two of the nine monumental ceiling paintings by Peter Paul Rubens and his studio, still located in their original location at the Banqueting House, the only surviving building of the former Whitehall Palace in London. OCT is a non-invasive technique of structural imaging of layers semi-permeable to the infra-red radiation. The aim of the 2018 research campaign at the Banqueting House, conducted within the MOLAB programme under the IPERION CH project, was to determine the present condition of the paintings and thus inform decisions ...

      Read Full Article
    16. Photoacoustic signal attenuation analysis for the assessment of thin layers thickness in paintings

      Photoacoustic signal attenuation analysis for the assessment of thin layers thickness in paintings

      This study introduces a novel method for the thickness estimation of thin paint layers in works of art, based on photoacoustic signal attenuation analysis (PAcSAA). Ad hoc designed samples with acrylic paint layers (Primary Red Magenta, Cadmium Yellow, Ultramarine Blue) of various thicknesses on glass substrates were realized for the specific application. After characterization by Optical Coherence Tomography imaging, samples were irradiated at the back side using low energy nanosecond laser pulses of 532 nm wavelength. Photoacoustic waves undergo a frequency-dependent exponential attenuation through the paint layer, before being detected by a broadband ultrasonic transducer. Frequency analysis of the recorded ...

      Read Full Article
    17. Using Optical Coherence Tomography to Reveal the Hidden History of The Landsdowne Virgin of the Yarnwinder by Leonardo da Vinci and Studio

      Using Optical Coherence Tomography to Reveal the Hidden History of The Landsdowne Virgin of the Yarnwinder by Leonardo da Vinci and Studio

      Optical coherence tomography (OCT) was used for non‐invasive examination of a well‐known, yet complex, painting from the studio of Leonardo da Vinci in combination with routine imaging in various bands of electromagnetic radiation. In contrast with these techniques, OCT provides depth‐resolved information. Three post‐processing modalities were explored: cross‐sectional views, maps of scattering from given depths, and their 3D models. Some hidden alterations of the painting owing to past restorations were traced: retouching and overpainting with their positioning within varnish layers as well as indications of a former transfer to canvas.

      Read Full Article
    18. Uncovering the Secrets of the 'Girl With a Pearl Earring'

      Uncovering the Secrets of the 'Girl With a Pearl Earring'

      “How did the ‘Girl With a Pearl Earring’ come to life? What steps did Vermeer take to make this painting?” These are some of the fundamental questions we still have about Johannes Vermeer’s beloved 1665 painting of a young woman in a blue and yellow turban, glancing beguilingly over her shoulder, according to Abbie Vandivere, paintings conservator at the Mauritshuis Royal Picture Gallery here. Image Emilie Gordenker, the director of the Mauritshuis, and Abbie Vandivere, the museum’s paintings conservator. Credit Michel deGroot for The New York Times The answers may lie below the surface of her luminous face ...

      Read Full Article
    19. 'Girl with Pearl Earring' to undergo examination

      'Girl with Pearl Earring' to undergo examination

      One of the world's most famous paintings "Girl with a Pearl Earring" is to undergo a two-week scientific examination in front of curious visitors to the Dutch museum where it lives. The luminescent tableau painted by Dutch master Johannes Vermeer around 1665 was last examined in 1994 during a conservation treatment at the Mauritshuis museum in the centre of The Hague. "Although further restoration is not yet required, major advances in non-invasive technical analysis have been made over the last 25 years," the museum said in a statement. Researchers have long been fascinated by the painting of a young ...

      Read Full Article
    20. Modern acrylic paints probed by optical coherence tomography and infrared reflectography

      Modern acrylic paints probed by optical coherence tomography and infrared reflectography

      Contemporary art is particularly delicate as the synthetic materials used for their realization are of poorer quality and durability than the traditional materials. It follows that the contemporary artworks often require imminent restorations as well as in-depth analytical studies of the constituting materials. The non-invasiveness of the scientific methods is a key issue in the diagnostics of contemporary art because it minimizes the need of sampling. In this respect, the potential of Optical Coherence Tomography (OCT) imaging to probe the internal structure of the commercial acrylic paint layers, as a function of their thickness, was investigated and compared with that ...

      Read Full Article
    21. Complementary use of Optical Coherence Tomography (OCT) and Reflection FTIR spectroscopy for in-situ non-invasive monitoring of varnish removal from easel paintings

      Complementary use of Optical Coherence Tomography (OCT) and Reflection FTIR spectroscopy for in-situ non-invasive monitoring of varnish removal from easel paintings

      Although the solvent removal of unwanted layers (e.g. aged varnishes, overpaints, oxalate patinas, dirt from easel paintings is one of the most frequently performed restoration treatments) it is questioned regarding its controllability and safety to the artwork. There is thus a need for developing suited diagnostic methodologies able to inform restorers on the chemical, optical and morphological effects of cleaning. To this aim, we have explored the possibility of complementary use of Optical Coherent Tomography (OCT) and reflection FTIR. On the one hand, the OCT technique provides cross-sectional images with varnish layers visible and thus permits for measurement of ...

      Read Full Article
    22. Imaging the first printed edition of Euclid’s Elements

      Imaging the first printed edition of Euclid’s Elements

      We decided to use Optical Coherence Tomography. Peter Munro at UCL Medical Physics and Biomedical Engineering has just bought a new system and we were keen to try it out. OCT has been one of the biggest successes of biomedical optics in the last thirty years, having gone from a lab invention in the early 1990s to a standard test for imaging the retina and other parts of the body. It uses near infrared light, so it’s safe, and splits it into two arms using a mirror. One arm is used as a reference and the other illuminates a ...

      Read Full Article
    1-24 of 113 1 2 3 4 5 »
  1. Categories

    1. Applications:

      Art, Cardiology, Dentistry, Dermatology, Developmental Biology, Gastroenterology, Gynecology, Microscopy, NDE/NDT, Neurology, Oncology, Ophthalmology, Other Non-Medical, Otolaryngology, Pulmonology, Urology
    2. Business News:

      Acquisition, Clinical Trials, Funding, Other Business News, Partnership, Patents
    3. Technology:

      Broadband Sources, Probes, Tunable Sources
    4. Miscellaneous:

      Jobs & Studentships, Student Theses, Textbooks
  2. Popular Articles