# Lippmann video plannig ###### tags: `lippmann` `notes` ### General topics Ideas I (Michalina) don't think fit in the video - ~~digital twin of artwork: origin of project, making electronic facsimile~~ - ~~Analysis lead to a fundamental understanding of this mode of photography: some equations here ;)~~ - ~~Idea of standing wave for single color: graphic~~ - ~~General case: just show it is complicated!~~ - ~~Forward and inverse transform: a few equations~~ - ~~Spectral recovery: show block diagram, and the fact it is not exact, but can be corrected~~ - ~~Was the sky s bluer….~~ History - Unique early color photography: we came across a unique set of early photographs at the Elysée - Show images and movie: relighting etc Alves at EPFL - Lippmann and Nobel prize: we discover it is one of the first color photography methods, and it earned the inventor the Nobel Prize in physics - Color photography is usually based on very few “ color” channels - RGB: show a Bayer pattern or the like - Interference photography, unique method: it is the only known photography method using interference - Interference and standing waves: some images of standing waves (or just of waves on a pond creating patterns: stock photo, or from Gilles thesis!) - Lippmann photo is the earliest example of multispectral imaging: it was 100 years before its time! Analysis - Historical and current photos (Lippmann, Alves, Gilles) - Examples with PSI three dimensional cut - shift depending on the material Now - Interference methods are widespread in physics, eg Michelson, Ligo - Multispectral and hyperspectral imaging: show an earth observation image of hypersectral photography - some of the similarities with holograms, which could also be tied - EPFL has a successful history with holograms for security --- Morphotonix - one of the potential applications of lippmann technology is the production of hard-to-falsify objects. ### Questions for the interview style video - How did you find out about Lippmann Photography? - How is it different from standard photograpy? - Who is this Lippmann anyway? - Why Lippmann Photography is not popular now? - Why wasn't it well undertstood? - What did you find when you investigated it? - How the process works? - What is the future Lippmann photography? [Lippmann video: answers](/35K35nWwTmuCRQbuxEcBwQ) ### (Visual) explanation how Lippmann Photography works - Waves on the water and interference - Standing wave in a glass of water - Interference leaving fringes video - Sliver grains PSI video - Reflection from fringes: soap bubbles, oil on the puddle, holographic chocolate - Show images of a Lippmann plate (at different tilt?)