Publication
Light-Syntax Zones in Daylit Café Spaces: A Novel Method for Understanding Occupancy
Publications associées (14)
Quantification of light exposure characteristics modulating non-visual responses with light-dosimetry
Marilyne Andersen, Steffen Lutz Hartmeyer
(1) Background: Extensive laboratory research has shown that physiological and behavioural responses to light are modulated by different light exposure characteristics, that is, spectral composition, intensity, duration, timing, temporal dynamics, prior hi ...
2022Effects of illuminance intensity on the green channel of remote photoplethysmography (rPPG) signals
Point-of-care remote photoplethysmography (rPPG) devices that utilize low-cost RGB cameras have drawn considerable attention due to their convenience in contactless and non-invasive vital signs monitoring. In rPPG, sufficient lighting conditions are essent ...
SPRINGER2022Validation of spectral simulation tools in the context of ipRGC-influenced light responses of building occupants
Marilyne Andersen, Clotilde Marie A Pierson
With the growing awareness about ipRGC-influenced light (IIL) responses, design applications related to these responses are flourishing. To compare design options and optimize lighting conditions for building occupants, lighting simulations are typically u ...
TAYLOR & FRANCIS LTD2022Visual comfort without borders: Extending daylight glare prediction to dim daylit environments
Avoiding discomfort glare is one of the critical aspects of maintaining visual comfort, which significantly influences occupants' overall satisfaction with their indoor environment. Discomfort glare prediction models have been developed for various lightin ...
EPFL2022A conceptual simulation workflow to guide design decisions regarding the effects of daylight on occupants' alertness
Recent developments in the lighting research field have demonstrated the importance of a proper exposure to light to mediate several of our behavioral and physiological responses. However, we spend nowadays around 90% of our time indoors with an often quit ...
IOP PUBLISHING LTD2021Towards a wearable sensor for spectrally-resolved personal light monitoring
Marilyne Andersen, Giorgia Chinazzo, Forrest Simon Webler
Given the large impact that the spectrum and intensity of light can have on people's health and well-being, it is of fundamental importance to understand the properties of light received under normal living conditions. Historically, as research into the bi ...
2021Tutorial: Luminance Maps for Daylighting Studies from High Dynamic Range Photography
Jan Wienold, Clotilde Marie A Pierson, Magali Bodart
In the field of lighting, luminance maps are often used to evaluate point-in-time lighting scenes from the occupant’s vantage point. High Dynamic Range (HDR) photography can be used to generate such luminance maps. The aim of this tutorial is to present a ...
2020A smart luminaire in an office environment: impact on light distribution, user interactions and comfort
A smart luminaire able to change the direction of its light beam is installed in an office environment and compared to the available LEDs fixtures. Standard lighting measures are performed and a controlled user experiment is conducted, involving 22 subject ...
IOP Publishing Ltd2019How to assess alerting effects of daylight at the workplace? Learnings from semi-controlled studies
Marilyne Andersen, Victoria Eugenia Soto Magán
Daylight, in which we evolved, is naturally rich in the blue component of the spectrum and has key properties when it comes to impacts on body functioning. Current lifestyles are driving the emergence of a 24-hour society that spends most of the time indoo ...
2019Light-driven model for identifying indicators of non-visual health potential in the built environment
This thesis introduces a new approach to characterize and evaluate ocular light exposure based on the discovery of novel blue light-sensitive photoreceptors in the human eye. These photoreceptors are the primary mediators of 'non-visual' responses impactin ...
EPFL2016