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Automatic Registration of Multi-Projector Based on Coded Structured Light

The State Key Laboratory of VR Technology & Systems, Beihang University, Beijing 100191, China
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Symmetry 2019, 11(11), 1397; https://doi.org/10.3390/sym11111397
Received: 19 October 2019 / Revised: 4 November 2019 / Accepted: 8 November 2019 / Published: 12 November 2019
Multi-projector display systems are widely used in virtual reality, flight simulators, and other entertainment systems. Geometric distortion and color inconsistency are two key problems to be solved. In this paper a geometric correction principle is theoretically demonstrated and a consistency principle of geometric correction is first proposed. A new method of automatic registration of a multi-projector on a curved screen is put forward. Two pairs of binocular-cameras are used to reconstruct the curved screen. To capture feature points of the curved screen precisely, a group of red-blue coded structured light images is designed to be projected onto the screen. Geometric homography between each projector and the curved screen is calculated to gain a pre-warp template. Work which can gain a seamless display is illustrated by a six-projector system on the curved screen. View Full-Text
Keywords: multi-projector; seamless display; coded structured light; curved screen; geometric registration multi-projector; seamless display; coded structured light; curved screen; geometric registration
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MDPI and ACS Style

Zhao, S.; Zhao, M.; Dai, S. Automatic Registration of Multi-Projector Based on Coded Structured Light. Symmetry 2019, 11, 1397.

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