ChromoUpdate : optimization technique for controlling color-changing materials

Abstract

Previous research re-programs the color texture of photochromic-coated objects by saturating the whole surface to black with UV LED before attempting to get a multi-color surface. Thus, it is not possible to directly transform the current color to the target color without resetting to black first. Moreover, partial update to the texture involves recoloring the entire surface. In this project ChromoUpdate, we introduce color texture updating to update from a color to another color directly by using a UV projector to give us ability to control activation pixel-wisely and implement a program to support local update. ChromoUpdate substantially speeds up the design iteration, by decreasing the projection time by twice in average and allow users to re-design and re-apply their pattern iteratively.