Paola Iacomussi

Paola Iacomussi
INRIM Istituto Nazionale di Ricerca Metrologica | INRIM · Nanoscience and Materials Dept.

MS

About

59
Publications
14,651
Reads
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282
Citations
Introduction
Paola received the MS in Physics at University of Turin, she has more than 20 years experience in Lighting Engineering and Material Characterisation as researcher at the National Institute of Metrological Research (INRiM) of Italy. She researches on the relationships between Metrological Characteristics of Lighting Sources and Materials with their perceived Appearance and Energy Impact, supports industries with new measurement methods and devices. She is lecturer at University of Torino
Additional affiliations
January 2010 - present
Università degli Studi di Torino
Position
  • Lecturer
Description
  • Course of Photometry and Psicofisics of vision for BS Optics and Optometry
January 2004 - December 2012
Università degli Studi di Torino
Position
  • Lecturer
Description
  • MS on Science and Technologies for Cultural heritage, Course of Colorimetry for Cultural Heritage
September 1995 - June 2015
INRIM Istituto Nazionale di Ricerca Metrologica
Position
  • Researcher

Publications

Publications (59)
Conference Paper
Full-text available
In recent years, the development of advanced driver assistance systems (ADAS) up to fully automated vehicles (AV), based on digitalization and boosted big data managing within dense multi-sensor networks, has become a strategic perspective for automotive and mechatronics engineering, oriented toward innovation of transports, infrastructure-vehicle...
Article
Full-text available
Specifications concerning road lighting and photometry of road surfaces were established more than 50 years ago. Road lighting design and road marking visibility were developed for vehicle driving. The observation distance defined by standards corresponds to interurban applications; however, within Europe these areas do not tend to be lit. The obje...
Article
Full-text available
We review the sampling and results of the radiocarbon dating of the archaeological cloth known as the Shroud of Turin, in the light of recent statistical analyses of both published and raw data. The statistical analyses highlight an inter-laboratory heterogeneity of the means and a monotone spatial variation of the ages of subsamples that suggest t...
Article
Metrological applications to road environment are usually focused on the characterization of the road, considering as measurands several characteristics related to the road as a whole or the performances of single components, like the road surface, lighting systems, active and/or passive signaling and obviously vehicles equipment. In current standa...
Technical Report
Full-text available
In questo rapporto passiamo in rassegna la storia, il campionamento e i risultati della datazione al radiocarbonio del tessuto archeologico noto come la ‘Sindone di Torino’, alla luce delle recenti analisi statistiche ‘robuste’ dei dati pubblicati e dei dati grezzi, questi ultimi resi disponibili solo nel 2017 dopo una richiesta legale europea nell...
Article
Full-text available
How road surfaces reflect light in space is a physical characteristic that plays a key role in the design of road lighting installations: by European Standards the average luminance is the target quantity to assure the required safety conditions of the motorized road traffic. Lighting systems are designed (luminous flux installed per kilometre) to...
Conference Paper
Full-text available
The archaeological cloth known as the Shroud of Turin is a controversial object for both scientific and religious reasons. After a brief introduction on the scientific data about the age of the cloth and the microscopic complexity of the images embedded on it, we discuss the unique reddish color of blood stains on the Shroud, which caught the atten...
Article
LED technology has the extraordinary ability to reduce energy consumption, constituting an economic and ecological advantage, so it is planned to replace incandescent, halogen and other inefficient bulbs for public and domestic lighting with LEDs. LEDs present specific spectral and energetic characteristics compared with those of other domestic lig...
Article
Full-text available
The unique reddish blood stains on the archaeological cloth known as the Shroud of Turin caught the attention of several scholars, who proposed different hypotheses to explain the unusual blood color. To date, just a few hypotheses have been tested experimentally, and the results are debatable. In this paper, we test the strength of two hypotheses...
Article
Full-text available
Lighting a cultural heritage artifact requires balancing visual perception with preventive conservation, by providing the best lighting (in terms of spectral distribution and quantity) to enable the viewer to appreciate details and color, while limiting photo-induced degradation. The paper outlines the methodology applied by a multi-disciplinary te...
Article
Full-text available
Cool materials with higher solar reflectance compared with conventional materials of the same color are widely used to maintain cooler urban fabrics when exposed to solar irradiation and to mitigate the Urban Heat Island (UHI). Photo-catalytic coatings are also useful to reduce air pollutants. Many studies related to these topics have been carried...
Conference Paper
Interdependence between color and gloss is a concept well-known by artists, especially by old masters, but is not usually considered in material characterization. Indeed, measurement methods and definitions consider these two attributes individually. This research investigates how the available measurement methods for gloss and color (saturation) f...
Article
The exhibition in museums of archaeological and historical textiles must keep into consideration the possible photo-degradation of the dyes. In the last decade, light emitting diodes (LEDs) have been extensively replacing other light sources; nevertheless, a few studies on the influence of LEDs on degradation of natural dyes are available. In this...
Article
The objectives of the paper are to analyze the visual behavior and visual discomfort parameters of dental practitioner at work, introducing the “lighting quality” approach in professional lighting using a suitable measurement methodology able to evaluate all relevant photometric and spectral parameters, not only the standard expected, and also the...
Article
Full-text available
In 2013 the European Metrology Research Program (EMRP) funded a 36 months research project, "Multidimensional Reflectometry for Industry, xD-Reflect", to investigate the macroscopic optical properties related to visual appearance of modern surfaces. During the three years duration of the project, over in August 2016, several visual experiments have...
Conference Paper
The main goal of this study is to evaluate with objective and subjective investigations how white LED light source affects the perception of visual attributes of coloured materials with different gloss values. The study compares the objective characteristics of a material (colorimetric coordinates and gloss) with the subjective evaluation of associ...
Conference Paper
The 3D laser scanning technology has been reached by more and more users in the last years, thanks to a new market of low cost devices, more affordable for simple, non-professional use. The educational use is one of such environments, and its didactics purposes gives the opportunity to test new technology from a variety of different point of views....
Conference Paper
In 2013 the European Metrology Research Program (EMRP) funded the research project, "Multidimensional Reflectometry for industry, xD-Reflect", to investigate the macroscopic optical properties related to visual appearance of modern surfaces and to develop and improve methodologies, tools and measurement devices able to provide a better description...
Article
In 2013 the European Metrology Research Program (EMRP) funded the research project, "Multidimensional Reflectometry for industry, xD-Reflect", to investigate the macroscopic optical properties related to visual appearance of modern surfaces and to develop and improve methodologies, tools and measurement devices able to provide a better description...
Article
The 3D laser scanning technology has been reached by more and more users in the last years, thanks to a new market of low cost devices, more affordable for simple, non-professional use. The educational use is one of such environments, and its didactics purposes gives the opportunity to test new technology from a variety of different point of views....
Article
Full-text available
Industrial and testing lighting laboratories underestimated the intrinsic metrological peculiarities of LED sources: concerns about performances, efficiency, ambiguous data and visual perception “de facto” slowed down their widespread implementation and their use in innovative systems in the first years of marketing. EU recognized these problems an...
Article
Full-text available
The use of LEDs in museums is becoming more and more frequent. Benefits are claimed in terms of lighting quality, conservation and maintenance. Nonetheless the impact of LED light on collections preservation is not yet completely explored. The goal of this study was to evaluate, through exposure tests, the colour degradation and fading produced by...
Article
Full-text available
A widely accepted definition of human comfort does not exist, but several metrics have been developed to quantify how much users appreciate environments, objects or interfaces. For visual comfort one of the most widely accepted approach is “that comfort is not discomfort”, because it is easier to provide quantitative and qualitative evaluation of v...
Conference Paper
The aim of this study is to evaluate experimentally how well available metrics are able to evaluate how lighting sources affect the perception of visual attributes of artworks exhibited, providing useful indications for works of art exhibition designers. The study considers objective investigations on optical material properties (i.e. spectral refl...
Conference Paper
Full-text available
The paper presents an investigation on the correlation between spectral characteristics and conservation conditions of parchment to define a NON invasive methodology able to detect and monitor deterioration process in historical parchment without the need of taking small samples. To verify the feasibility and define the most appropriate measurement...
Conference Paper
Full-text available
INRIM, Torino Senza la luce il nostro mondo sarebbe di difficile comprensione: la vista è uno dei sensi principali per apprezzare il mondo intorno a noi e sicuramente il colore gioca un ruolo fondamentale quando si tratta di comunicare immagini di forte impatto emotivo. La Sindone è un'immagine di forte impatto e durante l'Ostensione deve essere pe...
Article
The spectral reflectance of different samples of three different hues, (red, green, blue) with four different protective varnishes was measured in 8/d condition and with a goniometer equipped with a spectrometer. The samples are representative of hue and varnishes typically used in works of arts, the characterization was performed to test how the d...
Article
The new revised European standards for road lighting will be published in July 2015 highlighting the importance of energy performance aspects in road installations. The adaptive lighting approach can increase energy saving and reduce the environmental impact if compared to traditional solutions with the same type of luminaires and installation layo...
Article
Full-text available
The European Metrology Research Program (EMRP) is a metrology-focused program of coordinated Research and Development (RD) funded by the European Commission and participating countries within the European Association of National Metrology Institutes (EURAMET). It supports and ensures research collaboration between them by launching and managing dif...
Technical Report
This report presents the study about the measurement of visual comfort for interior lighting environments. First, we give a quick background about the known definition of visual comfort relying more on discomfort parameters, such as discomfort glare. We outline that visual comfort is not only made up of discomfort parameters. The classical reviewed...
Article
Full-text available
The objective of this work is to monitor the effects of light on pupil size considering different type of sources and retinal images in order to isolate the effect of dimension and spectra distribution of the emitted radiations. A pupillometric system has been built, constituted by an infrared illuminator and a high-resolution camera, in order to a...
Article
The use of commercial biocides in outdoor environments is increasingly discouraged because of their ecotoxicity, new methods being thus invoked to control patinas of biological origin on the stone cultural heritage. The effects of secondary metabolites (usnic acid, norstictic acid, parietin) produced by saxic- olous lichens, natural competitors of...
Conference Paper
Full-text available
This paper describe the INRIM methodology to define a light spectrum able to guarantee a defined perception of a work of art avoiding degradation. The method is based on the measurement of spectral reflection factors of a number of points of the artifact surface. Several significant points on the Turin Shroud, measured in the past, have been used t...
Article
Full-text available
The aim of this research is to compare the influence of two different luminous sources (incandescent light and LED light) on perceived contrast of objects in a disability glare context. About 25 subjects were involved in an experiment in order to monitor the variations in their contrast perception threshold, with and without glare sources, using a...
Article
Full-text available
This research was carried out with the cooperation and the financial support of ENEA, the Italian Agency for Energy of the Ministry for the Economic Development. The paper analyses the conditions for assuring the compatibility of external lighting with the environment and particularly with consumption of energy on one side and the interference with...
Conference Paper
Full-text available
We set an experimental session investigating the influence of different light sources and background noise on the perceived contrast, using self-luminous images of a target on a monitor in a semi-anechoic room. Behind a dark panel, on the two sides of the screen, two holes (about 100 mm diameter) accommodate the LED source and the reference source...
Article
Full-text available
Key issues related to surfaces and materials in the study and conservation of archaeological, artistic and historical objects are presented and illustrated with case studies. The materials cover a relatively broad chronological and compositional range. An important objective of the review is to inform the materials science and engineering community...
Conference Paper
Full-text available
Many factors affect display legibility in cockpits. Our research aim is to calculate perceived contrast decreasing due to veiling luminance. We focus our attention on this specific aspect, scarcely considered in aeronautical field. Through the study and development of different psychophysical models of vision and the realization of simulation exper...
Article
Full-text available
The influence of city lighting on astronomical observations is analysed by using a single parameter for a whole town based on the upward light from the luminaires. This parameter separates the influence of the upward light on the maximum visible stellar magnitude and on energy saving from the unavoidable reflections from the illuminated surfaces, i...
Article
Full-text available
It is well know that exposing a work of art to light involves an unavoidable damage: lighting of works of art must find a difficult compromise between exposition, minimal deterioration and colour perception. Colour perception is fundamental for our knowledge with the real world and in works of arts it involves at least two different aspects, the wa...
Article
External shading devices are getting very popular in modern highly glazed buildings to reduce the cooling loads and ensure the visual and thermal comfort for users. For a correct application of such complex transparent systems it is important a detailed optical characterisation at both levels, global (the quantity of light transmitted by the system...
Article
Full-text available
This paper describes the methodology developed for characterizing a commercial charge-coupled device (CCD) camera as a luminance meter for analyzing lighting systems and especially for measurements in road light plants. Today, several luminance meters based on commercial CCD cameras are on the market. They are very attractive for the lighting engin...
Conference Paper
Full-text available
A new innovative photometric laboratory starts its activity at the University of Padova in the field characterization of optical materials, like retroreflectors, road signs, road markings and asphalt. The system is composed by a light source, a detector to measure the luminance and the color of the light reflected by the sample and a goniometer to...
Conference Paper
Full-text available
This paper describes the methodology followed for characterizing a commercial CCD camera as a luminance meter for measurements in road light plant. Actually several commercial CCD cameras have been proposed on the market for this type of application and they are sold with full working software including a factory calibration in luminance units (cd/...

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Projects

Projects (6)
Project
Studies on the stains embedded into the Shroud of Turin, its copies and the conservation issue. Photo-chemical processes leading to the yellowing of cellulose, in ancient books and natural textiles.