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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 4 — Apr. 1, 2009

Applications of digital micro-mirror devices to digital optical microscope dynamic range enhancement

Adekunle A. Adeyemi, Neil Barakat, and Thomas E. Darcie  »View Author Affiliations

Optics Express, Vol. 17, Issue 3, pp. 1831-1843 (2009)

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In this paper, we present a method of using digital micro-mirror devices to dynamic range enhancement of a digital optical microscope images. Our adaptive feedback illumination control generates a high dynamic range image through an algorithm that combines the DMD-to-camera pixel geometrical mapping and a feedback operation. The feedback process automatically generates an illumination pattern in an iterative fashion that spatially modulates the DMD array elements on pixel-by-pixel level. Via experiment, we demonstrate a system that uses precise DMD control of the projector to enhance the dynamic range ideally by a factor of 573. Results are presented showing approximately 5 times the camera dynamic range, enabling visualization over a wide range of specimen characteristics.

© 2009 Optical Society of America

OCIS Codes
(040.1520) Detectors : CCD, charge-coupled device
(110.0180) Imaging systems : Microscopy
(120.4820) Instrumentation, measurement, and metrology : Optical systems

ToC Category:

Original Manuscript: October 23, 2008
Revised Manuscript: November 29, 2008
Manuscript Accepted: December 11, 2008
Published: January 29, 2009

Virtual Issues
Vol. 4, Iss. 4 Virtual Journal for Biomedical Optics

Adekunle A. Adeyemi, Neil Barakat, and Thomas E. Darcie, "Applications of digital micro-mirror devices to digital optical microscope dynamic range enhancement," Opt. Express 17, 1831-1843 (2009)

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