NDLI: Pixel-to-Pixel Correspondence Adjustment in DMD Camera by Moiré Methodology

Content Provider	Springer Nature Link
Author	Ri, S. Fujigaki, M. Matui, T. Morimoto, Y.
Copyright Year	2006
Abstract	DMD (Digital Micro-mirror Device) is a new device, which has hundreds of thousands of micro-mirrors in one chip. We developed a DMD reflection-type CCD camera that we call ‘DMD camera’ previously. In this optical system of the DMD camera, each mirror of the DMD is corresponded to each pixel of the CCD. As a result, each DMD mirror works as a high-speed controllable shutter of the corresponding CCD pixel. However, corresponding each mirror of the DMD to each pixel of the CCD cannot readily be done since the pixel sizes of DMD and CCD are very small. In this paper, a pixel-to-pixel correspondence adjustment method, which can perform accurate adjustment of the DMD camera optical system by moiré methodology is proposed. The proposed method is easy and visual by observing the moiré pattern. This method enables DMD camera to adjust pixel-to-pixel correspondence less than one pixel accuracy of the CCD. An experiment of phase analysis to demonstrate the improvement of the resolution and accuracy was performed.
Starting Page	67
Ending Page	75
Page Count	9
File Format	PDF
ISSN	00144851
Journal	Experimental Mechanics
Volume Number	46
Issue Number	1
e-ISSN	17412765
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2006-02-24
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Optical method Digital Micro-mirror Device (DMD) DMD reflection-type CCD camera (DMD camera) Moiré pattern Pixel-to-pixel correspondence adjustment method Theoretical and Applied Mechanics Structural Mechanics Engineering Fluid Dynamics Mechanical Engineering Engineering Design Characterization and Evaluation Materials
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Mechanical Engineering Aerospace Engineering

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