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.

Course schedule
04.12.2024 - 04.12.2024
Organizer
Charles Poynton
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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.

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).

Course Details

  • Type: In-person
  • Level: Advanced
  • Date: 4th December 2024
  • Duration: 1 day
  • Time: 10:00–18:00
  • Host: MPC/Technicolor Group, 127 Wardour St, London

Tutor: Charles Poynton, PhD

Image & colour (color) science; math; physics; algorithm development

I engage in the physics, mathematics, and engineering of digital colour (color) imaging systems, including digital video, HD, UHD/4K/8K, HDR/WCG, CGI/VFX, and digital cinema (D-cinema). I spell colour with a "u". I do technology forecasting, systems modelling, algorithm development, image processing architecture, colour characterization and calibration, and image quality assessment. I have worked on sensor processing for digital cameras, especially the colour processing aspects. I read and write code. I do patent analysis; I have experience as an expert witness. Twenty years ago, I decided that HD should have “square pixels,” and I chose the number 1080 for HD standards (e.g., 1080p24) and digital cinema (e.g., 2048 x 1080 and multiples thereof). I was responsible for the introduction of the Adobe RGB 1998 colour space. I hold a PhD from Simon Fraser University. I live and work in Toronto.

Course Fee: £500/seat

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