We present a large-scale and glasses-free 3D display system in this paper. The developed prototype consists of a
100-inch display screen and eight synchronized projectors, providing an eight-view glassless 3D experience. The
synchronization and calibration between projectors are well addressed in this paper. Our system is also designed
to be free from the vertical stripe noise, which is a big drawback for many other projector-based 3D system.
Experiment results show that both binocular disparity and motion parallax are well supported. In summary, we
provide a feasible solution for large-scale glasses-free 3D cinemas via multiple projectors.
For typical multi-projector 3D display systems, precise calibration of projectors is extremely important for
ensuring projected images/videos to coincide exactly in the same region of the screen to obtain high quality
3D display experience. Conventional calibration is achieved by adjusting the pose of projectors manually with
the built-in keystone correction function, which is imprecise and time-consuming. In this paper, we propose
an auto-calibration approach using feature detection and matching technique via an uncalibrated camera to
improve both the calibration efficiency and precision. The whole procedure can be finished in minutes, and the
calibration error also hardly increase with the number of projectors. What’s more, to the best of our knowledge,
our approach is the first fast auto-calibration approach employed in the multi-projector 3D display systems.