Search Results for author: Marc Walton

Found 6 papers, 1 papers with code

Can Deep Learning Assist Automatic Identification of Layered Pigments From XRF Data?

no code implementations26 Jul 2022 Bingjie, Xu, Yunan Wu, Pengxiao Hao, Marc Vermeulen, Alicia McGeachy, Kate Smith, Katherine Eremin, Georgina Rayner, Giovanni Verri, Florian Willomitzer, Matthias Alfeld, Jack Tumblin, Aggelos Katsaggelos, Marc Walton

The pigment identification results demonstrated that our model achieved comparable results to the analysis by elemental mapping, suggesting the generalizability and stability of our model.

Denoising Fast X-Ray Fluorescence Raster Scans of Paintings

no code implementations3 Jun 2022 Henry Chopp, Alicia McGeachy, Matthias Alfeld, Oliver Cossairt, Marc Walton, Aggelos Katsaggelos

Macro x-ray fluorescence (XRF) imaging of cultural heritage objects, while a popular non-invasive technique for providing elemental distribution maps, is a slow acquisition process in acquiring high signal-to-noise ratio XRF volumes.

Denoising Dictionary Learning

Improved Spectral Imaging Microscopy for Cultural Heritage through Oblique Illumination

no code implementations1 Jan 2020 Lindsay Oakley, Stephanie Zaleski, Billie Males, Ollie Cossairt, Marc Walton

This work presents the development of a flexible microscopic chemical imaging platform for cultural heritage that utilizes wavelength-tunable oblique illumination from a point source to obtain per-pixel reflectance spectra in the VIS-NIR range.

Uncalibrated Deflectometry with a Mobile Device on Extended Specular Surfaces

no code implementations24 Jul 2019 Florian Willomitzer, Chia-Kai Yeh, Vikas Gupta, William Spies, Florian Schiffers, Marc Walton, Oliver Cossairt

We introduce a system and methods for the three-dimensional measurement of extended specular surfaces with high surface normal variations.

Adaptive Image Sampling using Deep Learning and its Application on X-Ray Fluorescence Image Reconstruction

3 code implementations27 Dec 2018 Qiqin Dai, Henry Chopp, Emeline Pouyet, Oliver Cossairt, Marc Walton, Aggelos K. Katsaggelos

We propose an XRF image inpainting approach to address the issue of long scanning time, thus speeding up the scanning process while still maintaining the possibility to reconstruct a high quality XRF image.

Binarization Image Inpainting +1

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