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Analysis of Correction Displacements of the Projected Distortion Image  

Chi, Yongseok (Department of Applied Electronics Engineering, Dongseo University)
Publication Information
Journal of the Semiconductor & Display Technology / v.20, no.3, 2021 , pp. 18-21 More about this Journal
Abstract
This paper analyzes the distortion correction of the in the micro DMD(digital micro mirror device) projector system using 0.25 or less optical throwing distance ratio. The distortion of projected image occurs depending on the performance of the optical lens, the installation location of the projection system, and the tilt of the screen. This study analyzed the physical tilt values influencing of the distortion of projected image, removed the tilt distortion of throwing distance ratio optical lens, and adjusted the distortion image by the simulation of calibration displacements. The results of this study demonstrated within 5% TV distortion reference. Moreover, the correction method reduced the pin-distortion correction of projection system.
Keywords
Tilt Correction; Correction Displacements; Projection System;
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  • Reference
1 D.C. Hutchison, "Introducing Brilliant Color Technology," Texas Instruments reports, pp.2-5, 2005.
2 Proejector and screen, ultra short throw projector, https://www.projectorscreen.com accessed July. 12, 2021.
3 R. J. Gove, "DMD display system: the impact of all-digital display", Society for Information Display International Symposium, pp. 5-9, 1994.
4 Keishi Kimura et al., "Image Processing with Keystone correction of the digaital image data for projector." US Patent 0068094, 2003.
5 Lee, Yong-Hwan, "Implementation of Object Feature Extraction within Image for Object Tracking", Journal of the Semiconductor & Display Technology, Vol.18, 2018.
6 Texas Instruments : Moving to higher brightness & LED Projection based 0.55 inch DMD & ddp2230, 2008.517-521, 2008.