Summer School Program Speakers

As in past years, the 2025 event will feature two keynote speakers, one invited lecture and there will be five focal talks introducing each technical session.

Summer school Program speakers:

Lou Gevaux, LNE - Conservatoire National des Arts et Métier, Paris (France)

Metrological challenges in HDR imaging for luminance measurement

Abstract:
Radiometry, photometry and colour science for lighting.
Applications in lighting require understanding, characterizing, measuring and modelling the geometric and spectral aspects of light, using a variety of quantities, geometric concepts, units, instruments, laws and indices. This short course presents the fundamental concepts of radiometry, photometry, and colorimetry that apply to the field of lighting, along with measurement practices, from the primary realization of the candela at National Metrology Institutes to field measurements. Recent developments and current research on measurements involving imaging instruments will also be explored.

Raphaël Labayrade, LTDS, ENTPE, Lyon (France)

Light transport simulation: materials, lights, algorithms and software.
(More detail to follow).

Michaël Murdoch, RIT, Rochester (USA)
Spectral systems and colors.

(More detail to follow).

Raymondo Schettini, University of Milano Bicocca (Italy)

Illuminant Estimation and Correction in Color Imaging Workflows

Abstract:

Lighting conditions greatly influence how colors are captured and reproduced in digital images. This tutorial introduces the problem of illuminant estimation and its role in achieving different goals of color reproduction: colorimetric accuracy, perceptual appearance, and preferred visual quality.

We will explore key methods for estimating and correcting the scene illuminant, from simple statistical approaches to advanced learning-based techniques. Special focus will be given to chromatic adaptation transforms, which emulate human color constancy and support visually consistent image reproduction under varying lighting.

Through examples and method comparisons, participants will gain insight into how lighting, perception, and reproduction interact in imaging workflows, and how illuminant correction enhances both fidelity and visual appeal.

Focal Speakers:

Lou Gevaux, LNE - Conservatoire National des Arts et Métier, Paris (France)

Metrological challenges in HDR imaging for luminance measurement

Abstract:
The development of affordable, high-performance CCD and CMOS sensors has led to the rise of imaging-based measurement instruments, such as Imaging Luminance Measurement Devices (ILMDs). These allow entire scenes to be characterized in a single capture, significantly saving time compared to point-based measurements. However, cameras—whether commercial, scientific, or industrial—must be calibrated to serve as accurate measurement tools. Proper calibration of HDR devices is challenging, as it requires multiple corrections that are only valid under specific conditions, making it essential for users to understand these metrological constraints.

Raymondo Schettini, University of Milano Bicocca (Italy)
(More details to follow).

Andrew Stockman, Institute of Ophthalmology University College London (UK)

Individualized colorimetry for correcting observer metamerism failures in narrow band display and lighting.
(More details to follow).

Giuseppe Claudio Guarnera, Department of Computer Science, University of York, UK
(More details to follow).