Metamerism Experts’ Day 2024
In this one-day session, we discuss the principle of metamerism – both good and bad! – and address practical issues relevant to modern video and film production, post-production, and presentation.
In colour science, “metamerism” refers to two things: metameric success, where two different spectral distributions produce the same RGB values or evoke the same color sensation, and metameric failure, where the same spectral distribution produces different RGB triplets or evokes different color sensations. In high-end colour imaging we seek predictable colour sensations, so metamerism is an important issue in both engineering and production. Metamerism is especially relevant today with the widespread use of LEDs in both illumination and displays, where the rather narrow-band spectral power induces metamerism much more readily than in classic illumination and display technology.
In this one-day session, we discuss the principle of metamerism – both good and bad! – and address practical issues relevant to modern video and film production, post-production, and presentation: illumination, cameras, displays, and atypical (“color deficient”) observers.
- Charles Poynton (Independent researcher, Toronto)
- Andrew Stockman (Professor of vision science, UCL, London)
- Adrian Bull (CEO, Cinelab, London)
- Bram Desmet (CEO/display expert, Flanders Scientific, Atlanta)
- John Frith (imaging engineer, MPC/Technicolor, London)
- Jean-Philippe Jacquemin (Product manager HDR, Barco, Belgium)
- Laurens Orij (Senior colourist, Crabsalad, Amsterdam)
- Andy Rider (Research associate, UCL, London)
- Daniele Siragusano (Imaging engineer, Filmlight, London)
We will discuss illuminant metamerism and camera metamerism (relevant to camera acquisition in general, but particularly to LED illumination, LED walls, and virtual sets), and observer metamerism (ie deficient colour vision, an issue for LED-backlit-LCD, OLED, QD-OLED, and laser cinema, particularly if your producer has anomalous colour vision).
We expect technically advanced colourists, DoPs, and DITs; post-production facility operators; colour pipeline engineers; VFX/CGI specialists (including people working in virtual production); studio colour scientists; display system developers; LED lighting/tile vendors, display calibrators, and colour grading system developers.
We seek participants that are knowledgeable and experienced in colour science. There will be no recording. We expect that participants will have expertise that the presenters do not have, so we will encourage discussion – when we say “Experts’ Day,” we are referring to all of the participants. There will be no commercial messaging.
Registration fee includes handouts, wine & cheese the evening before (a chance to speak with the presenters & participants), and lunch on the day of the event. The event will be hosted by MPC/Technicolor Group (127 Wardour St, London).