DynaFlash & Dynamic projection mapping onto deforming non-rigid surface
Projection mapping attracts attentions as an emerging technology to extend the real world. However, until now most of the realized examples have been limited to static or quasi-static environments. A group of researchers at Ishikawa Watanabe Laboratory of the University of Tokyo has realized dynamic projection mapping onto deforming non-rigid surface based on two original technologies.
The first technology is a high-speed projector called „DynaFlash“ that can project 8-bit images up to 1,000 fps with 3 ms delay.
The second technology called „Deformable Dot Cluster Marker“ is a high-speed non-rigid surface tracking at 1,000 fps using a grid. Sensing of non-rigid surface deformation is difficult to be achieved at high speed because it has high degrees-of-freedom and involves self-occlusions as well as external occlusions. Since the projection and sensing are operated at a speed of 1,000 fps, a human cannot perceive any misalignment between the dynamically-deforming target and the projected images. Especially, focusing on new paradigms in the field of user interface and fashion, the researchers have demonstrated dynamic projection mapping onto a deformed sheet of paper and T-shirt. Also to show that projection to multiple targets can be controlled flexibly by using the new recognition technique.
http://www.k2.t.u-tokyo.ac.jp/vision/DDCM/index-e.html (Deformable Dot Cluster Marker)