Mr. Viacheslav Sabirov Profile

Viacheslav Sabirov

at Skolkovo Institute of Science and Technology

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Proceedings Article | 7 March 2014 Paper

Eye-safe projection system with flexible architecture

Viacheslav Sabirov

Proceedings Volume 9024, 902408 (2014) https://doi.org/10.1117/12.2036096

KEYWORDS: Projection systems, Cameras, Image processing, Imaging systems, Calibration, Video, Projection devices, Prototyping, Image quality, Infrared cameras

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Nowadays multimedia projectors of various types are widely used in many areas of human life. Significant part of all projector devices are used in two main areas: education (e. g. on lectures) and business (e. g. on all sorts of meetings). What makes projector a demanded device? It provides a user with high quality full color large diagonal image for a much lower price than display devices that based on other popular non-projecting technologies. However the absolute majority of projectors share a significant disadvantage. If human steps into the beam two major negative effects appear: a distorted image appears on human’s body and human’s eyes become glared by bright light. The first effect is undesirable by the audience and the second effect is undesirable by the presenter. To avoid the abovementioned effects short throw projectors can be used but they are more expensive than regular ones and have significant limitations on the placement spot: usually the lens of a short-throw projector is designed so that it has to be placed on a fixed distance to the screen. We propose a different solution of similar problem: instead of moving the projector towards the screen let us black out the human (or other obstacle) from it. To do so our system must know the exact position of human. In this paper we propose a system with flexible architecture that realizes the above-mentioned solution.

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