Intensity control of projectors in parallel: A doorway to an augmented reality future
https://www.sciencedaily.com/releases/2022/03/220316091717.htm
Technological advancements continue to redesign the way we interact with digital media, the world around us, and each other. Augmented reality (AR), which uses technology to alter the perception of objects in the real world, is unlocking unprecedented landscapes in entertainment, advertising, education, and across many other industries. The use of multiple projectors plays an important role in expanding the usage of AR, alongside a technique called projection mapping. However, an obstacle to the widespread adoption of AR is the application of this method to moving, or "dynamic," targets without the loss of immersion in the AR space.
This technique, known as dynamic projection mapping, relies on a blend of cameras and projectors that visually detect target surfaces and project onto them, respectively. A critical aspect is the need for high speed in information transfer and low "latency," or delay between detection and projection. Any latency leads to a misalignment of the projector, which effects our perception, and reduces the effectiveness of the AR space.