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

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.

• Shingo Kagami and Koichi Hashimoto, A Full-Color Single-Chip-DLP Projector with an Embedded 2400-fps Homography Warping Engine. SIGGRAPH 2018 Emerging Technologies, Article No. 1, 2018. doi: 10.1145/3214907.3214927
  • ACM Digital Library
  • Supplemental video: https://youtu.be/T00LxDEbbB4
  • Demo at SIGGRAPH 2018 venue: https://youtu.be/YjP6stMpkog
  • Slides at SIGGRAPH 2018 Experience Presentations

Some movies taken by SIGGRAPH 2018 participants:

• https://twitter.com/tomemrich/status/1029475764771540994/
• https://twitter.com/i/web/status/1029846785529966593/
• https://twitter.com/VRToronto/status/1029127059535089664/
• https://twitter.com/drinami/status/1028730780778815488
• https://twitter.com/o_ob/status/1030194560364728320
• https://instagram.com/p/BmzOMrjnk0f/