title: Applications of digital micro-mirror devices to digital optical microscope dynamic range enhancement.
abstract: 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.
authors.affiliation: Department of Electrical and Computer Engineering, University of Victoria, Victoria, BC, Canada. aadeyemi@uvic.ca
authors.forename: Adekunle A
authors.initials: AA
authors.lastname: Adeyemi
authors.forename: Neil
authors.initials: N
authors.lastname: Barakat
authors.forename: Thomas E
authors.initials: TE
authors.lastname: Darcie