Claudia Daffara
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View article: Multi-model ensembles for object detection in multispectral images: A case study for precision agriculture
Multi-model ensembles for object detection in multispectral images: A case study for precision agriculture Open
View article: OCT in Oncology and Precision Medicine: From Nanoparticles to Advanced Technologies and AI
OCT in Oncology and Precision Medicine: From Nanoparticles to Advanced Technologies and AI Open
Optical Coherence Tomography (OCT) is a relatively new medical imaging device that provides high-resolution and real-time visualization of biological tissues. Initially designed for ophthalmology, OCT is now being applied in other types of…
View article: OCT in Oncology and Precision Medicine: From Nanoparticles to Advanced Technologies
OCT in Oncology and Precision Medicine: From Nanoparticles to Advanced Technologies Open
Optical Coherence Tomography (OCT) is a relatively new medical imaging device that provides high-resolution and real-time visualization of biological tissues. Initially designed for ophthalmology, OCT is starting to be applied in other typ…
View article: Spatio-temporal monitoring of the microsurface modification in artworks under environmental forcing
Spatio-temporal monitoring of the microsurface modification in artworks under environmental forcing Open
Despite the valuable role of surface metrology in engineering, its potential in heritage science remains to be fully recognized. The reasons for this are evident: A hand-made artwork is a complex object with a hand-processed surface and no…
View article: A multispectral camera in the VIS–NIR equipped with thermal imaging and environmental sensors for non invasive analysis in precision agriculture
A multispectral camera in the VIS–NIR equipped with thermal imaging and environmental sensors for non invasive analysis in precision agriculture Open
View article: Smartphone-based diagnostics with coherent and infrared imaging for cultural heritage
Smartphone-based diagnostics with coherent and infrared imaging for cultural heritage Open
Nondestructive optical techniques are crucial in heritage science for monitoring the condition of artworks in full field. Various imaging methods based on infrared and interferometry techniques have been proposed, but they often require sp…
View article: A passive stereo calibration technique for visible-thermal, low-resolution imaging in remote sensing applications
A passive stereo calibration technique for visible-thermal, low-resolution imaging in remote sensing applications Open
When using vision systems that employ multiple spectral bandwidths, such as visible and Long-Wave Infrared (LWIR) bands, the calibration object's appearance can significantly impact the matching of common features in the images. To address…
View article: Integrated microprofilometry and multispectral imaging for full-field analysis of ancient manuscripts
Integrated microprofilometry and multispectral imaging for full-field analysis of ancient manuscripts Open
A novel workflow is proposed to combine the use of two powerful techniques in the study of ancient manuscripts: multispectral imaging and optical microprofilometry. Multispectral imaging is routinely used and allows to examine each individ…
View article: Measuring thermal spread during bipolar cauterizing using an experimental pneumoperitoneum and thermal sensors
Measuring thermal spread during bipolar cauterizing using an experimental pneumoperitoneum and thermal sensors Open
Objective During nerve-sparing robot-assisted radical prostatectomy (RARP) bipolar electrocoagulation is often used but its use is controversial for the possible thermal damage of neurovascular bundles. Aim of the study was to evaluate the…
View article: A novel stereoscopic thermal endoscope for tissue damage prevention
A novel stereoscopic thermal endoscope for tissue damage prevention Open
Multi-spectral imaging systems, namely thermal and visible spectrum imaging systems, are recently being employed successfully in multiple civilian applications, such as civil engineering , precision agriculture, and cultural heritage prese…
View article: Evaluating the integration of Thermal Quasi-Reflectography in manuscript imaging diagnostic protocols to improve non-invasive materials investigation
Evaluating the integration of Thermal Quasi-Reflectography in manuscript imaging diagnostic protocols to improve non-invasive materials investigation Open
Multispectral imaging techniques applied to book heritage are useful to scholars to obtain information on the materials under investigation. The novel introduction of Thermal Quasi-Reflectography (TQR) technique, operating in the medium wa…
View article: A Method for Spatially Registered Microprofilometry Combining Intensity-Height Datasets from Interferometric Sensors
A Method for Spatially Registered Microprofilometry Combining Intensity-Height Datasets from Interferometric Sensors Open
A recognized problem in profilometry applied to artworks is the spatial referencing of the surface topography at micrometer scale due to the lack of references in the height data with respect to the “visually readable” surface. We demonstr…
View article: Surface Metrology Based on Scanning Conoscopic Holography for In Situ and In-Process Monitoring of Microtexture in Paintings
Surface Metrology Based on Scanning Conoscopic Holography for In Situ and In-Process Monitoring of Microtexture in Paintings Open
In the field of engineering, surface metrology is a valuable tool codified by international standards that enables the quantitative study of small-scale surface features. However, it is not recognized as a resource in the field of cultural…
View article: Multiscale roughness analysis by microprofilometry based on conoscopic holography: a new tool for treatment monitoring in highly reflective metal artworks
Multiscale roughness analysis by microprofilometry based on conoscopic holography: a new tool for treatment monitoring in highly reflective metal artworks Open
The analysis of surface roughness in highly reflective metal artworks is challenging and requires contactless devices capable to measure regions with high micrometer accuracy in both depth and lateral directions. We demonstrate optical pro…
View article: Focus-stacking system for 3D acquisition of sculptures and archaeological manufacts
Focus-stacking system for 3D acquisition of sculptures and archaeological manufacts Open
In this paper we present the basic features of the Shape from Focus techniques and discuss the potentiality of its application in the 3D imaging of small sculptures and archaeological manufacts. A scanning system for optimizing the image s…
View article: Feasibility and performance analysis in 3D printing of artworks using laser scanning microprofilometry
Feasibility and performance analysis in 3D printing of artworks using laser scanning microprofilometry Open
We investigated optical scanning microprofilometry and conoscopic holography sensors as nondestructive testing and evaluation tools in archeology for obtaining an accurate 3D printed reproduction of the data. The modular microprofilometer …
View article: Thermal endoscope based on cost-effective LWIR camera cores
Thermal endoscope based on cost-effective LWIR camera cores Open
The implementation of a thermal endoscope based on the LWIR camera cores Lepton and a custom miniaturized electronics is reported. The sensor and the PCB can be inserted into a cylindrical protective case of diameter down to 15mm, inox tub…
View article: Dual mode imaging in mid infrared with thermal signal reconstruction for innovative diagnostics of the “Monocromo” by Leonardo da Vinci
Dual mode imaging in mid infrared with thermal signal reconstruction for innovative diagnostics of the “Monocromo” by Leonardo da Vinci Open
View article: Mathematical osmosis imaging for multi-modal and multi-spectral applications in Cultural Heritage conservation
Mathematical osmosis imaging for multi-modal and multi-spectral applications in Cultural Heritage conservation Open
In this work we present a dual-mode mid-infrared workflow [6], for detecting sub-superficial mural damages in frescoes artworks. Due to the large nature of frescoes, multiple thermal images are recorded. Thus, the experimental setup may in…
View article: Experiencing the Untouchable: A Method for Scientific Exploration and Haptic Fruition of Artworks Microsurface Based on Optical Scanning Profilometry
Experiencing the Untouchable: A Method for Scientific Exploration and Haptic Fruition of Artworks Microsurface Based on Optical Scanning Profilometry Open
The experience of an object derives not only from the sight but also from the touch: a tactile exploration can reveal the smallest information trapped within the surface up to our tactile detective threshold. Starting from the importance o…
View article: Thermal imaging in the 3-5 micron range for precise localization of defects: application on frescoes at the Sforza Castle
Thermal imaging in the 3-5 micron range for precise localization of defects: application on frescoes at the Sforza Castle Open
Infrared methods are of great importance in nondestructive testing of artworks, allowing a remote and wide-field imaging of interesting hidden features. Here we discuss a workflow based on thermal imaging in the mid infrared 3-5 micron ran…
View article: Heat, temperature and energy: a formative experiment-based module including the use of infrared cameras
Heat, temperature and energy: a formative experiment-based module including the use of infrared cameras Open
The historical development of the concept of energy can be brought back to the early studies of heat, suggesting that a unified treatment of heat, temperature and energy can be a possible route for teaching these complex subjects altogethe…
View article: An experiment-based module for building quantum mechanics concepts using Mach-Zehnder interferometry
An experiment-based module for building quantum mechanics concepts using Mach-Zehnder interferometry Open
To introduce the fundamental concepts and formalism of Quantum Mechanics at the base of Quantum Calculus and Quantum Cryptography we developed an experiment-based module centered on the use of a Mach-Zehnder laser interferometer equipped w…
View article: A Portable Compact System for Laser Speckle Correlation Imaging of Artworks Using Projected Speckle Pattern
A Portable Compact System for Laser Speckle Correlation Imaging of Artworks Using Projected Speckle Pattern Open
Artworks have a layered structure subjected to alterations caused by various factors. The monitoring of defects at sub-millimeter scale may be performed by laser interferometric techniques. The aim of this work was to develop a compact sys…
View article: A Cost-Effective System for Aerial 3D Thermography of Buildings
A Cost-Effective System for Aerial 3D Thermography of Buildings Open
Three-dimensional (3D) imaging and infrared (IR) thermography are powerful tools in many areas in engineering and sciences. Their joint use is of great interest in the buildings sector, allowing inspection and non-destructive testing of el…
View article: PCA-based method for managing and analyzing single-spot analysis referenced to spectral imaging for artworks diagnostics
PCA-based method for managing and analyzing single-spot analysis referenced to spectral imaging for artworks diagnostics Open
View article: Metaphors and analogies proposed by perspective primary teachers to support the exploration of magnetic phenomena.
Metaphors and analogies proposed by perspective primary teachers to support the exploration of magnetic phenomena. Open
Analogies and Metaphors play an important role in primary science education to correlate abstract aspects and lived experiences, providing concrete meanings for pupils. They represent important educational tools that can help young pupils …
View article: Infrared vision of artworks based on web cameras: a cross-disciplinary laboratory of optics
Infrared vision of artworks based on web cameras: a cross-disciplinary laboratory of optics Open
Applied optics offers a way to teach fundamental concepts of light properties and radiation-matter interaction through interdisciplinary experimental activities. In this framework, we designed a cross-disciplinary laboratorial activity on …
View article: Application of coatings on silver studied with punctual and imaging techniques: from specimens to real cases
Application of coatings on silver studied with punctual and imaging techniques: from specimens to real cases Open
The protection of silver artifacts with a coating of organic material isolating the surface from oxygen and S-bearing gases is still one of the most used techniques for the preservation of silver surfaces. A variety of materials suitable t…
View article: A versatile system for<i>in-situ</i>speckle and thermography-based diagnostics of artifacts
A versatile system for<i>in-situ</i>speckle and thermography-based diagnostics of artifacts Open
Holographic nondestructive techniques already showed their effectiveness in detecting structural defects on or beneath the surface of historical artifacts, not emerging from conventional visual inspections. Unfortunately, such tools are di…