Nonuniformity Measurement of Image Resolution under Effect of Color Speckle for Raster-scan RGB Laser Mobile Projector

Junichi Kinoshita; Akira Takamori; Kazuhisa Yamamoto; Kazuo Kuroda; Koji Suzuki; Keisuke Hieda

doi:10.1587/transele.2021DIP0001

This article has now been updated. Please use the final version.

Nonuniformity Measurement of Image Resolution under Effect of Color Speckle for Raster-scan RGB Laser Mobile Projector

Junichi Kinoshita, Akira Takamori, Kazuhisa Yamamoto, Kazuo Kuroda, Koji Suzuki, Keisuke Hieda

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Keywords: speckle, color speckle, laser display, projector, image resolution, eye-diagram

JOURNAL RESTRICTED ACCESS Advance online publication

Article ID: 2021DIP0001

DOI https://doi.org/10.1587/transele.2021DIP0001

The final version of this article is now available: Vol. E105.C (2022), No. 2 pp. 86-94

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Abstract

Image resolution under the effect of color speckle was successfully measured for a raster-scan mobile projector, using the modified contrast modulation method. This method was based on the eye-diagram analysis for distinguishing the binary image signals, black-and-white line pairs. The image resolution and the related metrics, illuminance, chromaticity, and speckle contrast were measured at the nine regions on the full-frame area projected on a standard diffusive reflectance screen. The nonuniformity data over the nine regions were discussed and analyzed.

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