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A Full-Color Single-Chip-DLP Projector with an Embedded 2400-fps Homography Warping Engine

Shingo Kagami and Koichi Hashimoto

We present a full-color DLP (Digital Light Processing) projector that enables fast projection mapping onto a moving surface. It receives normal video input from HDMI and warps the image at over 2400 transforms/sec under the control of USB commands.

In general, DLP projectors represent an image as sequential superposition of binary patterns. Our projector applies image warp to each pattern (Kagami+, SIGGRAPH Asia 2015), instead of a set of patterns composing a video frame. Therefore, quick response to motion commands is maintained.

Some movies taken by SIGGRAPH 2018 participants: