Multispectral Imaging (MSI)

 

Our MSI system, Antonello

Antonello, our low-cost MSI system for Art and Archaeology. Use it with a digital camera modified to cover the 360-1100 nm spectral range. Antonello has 18 bandpass filters and multispectral imaging software. Antonello uses specifically designed n-scene grey reference targets and it is versatile and adaptable to the specific needs of different art or archaeology examination projects, such as manuscripts, wall paintings and easel paintings.

CLICK and learn more on Antonello, the MSI system.

How MSI works?

Images of an object in a series of spectral bands are acquired, and once the images are registered and calibrated, they are uploaded into the reflectance image cube. This represents the pixels of each image in the X and Y axes, while the Z dimension denotes the wavelength of each spectral image. From the cube, it is then possible to reconstruct the reflectance spectrum for each pixel of the image. MSI analysis is based on the same concepts of Reflectance Spectroscopy but MSI has the added advantage that the pigments can be identified and mapped remotely on large areas rather than just a spot.

Applications in Art and Archaeology

Multispectral Imaging (MSI) is used to map and tentatively identify pigments and retouchings on works of art. It is also used to visually enhance old and faded documents. Conservators can use this technique to distinguish original sections from inpaints and to select the proper conservation procedures.  Learn more on how we analyze art and archaeology with MSI and other methods. Click here.

Our Training program on MSI

Our Multispectral Imaging (MSI) Training module presents Antonello, our affordable MSI system, and discuss the complete MSI examination workflow (spectral images calibration, registration, and pigments mapping). Learn more on our Trainings.

Publications on Multispectral Imaging
A. Cosentino “Imaging Multispettrale low-cost con filtri interferenziali” Archeomatica, 2, 12-17, 2015..
A. Cosentino “Multispectral imaging and the art expert” Spectroscopy Europe, 27 (2) 6-9, 2015.
A. Cosentino “Multispectral Imaging of Pigments with a digital camera and 12 interferential filters” e-Preservation Science, 12, 1-7, 2015..
A. Cosentino “Panoramic, Macro and Micro Multispectral Imaging: An Affordable System for Mapping Pigments on Artworks” Journal of Conservation and Museum Studies, 13(1): 6, 1–17, 2015
A. Cosentino “Multispectral imaging system using 12 interference filters for mapping pigments” Conservar Património 21, 25-38, 2015.
A. Cosentino “Crowd funded research: low-cost multispectral imaging” RECH3, International meeting on Retouching of cultural heritage. 2015.
A. Cosentino “Transmittance spectroscopy and transmitted multispectral imaging to map covered paints” Conservar Património 24, 37-45, 2016.