Publications by Year: 2014

2014
Jung, J. - H., & Peli, E. (2014). Multiplexing prism glasses for field expansion in bitemporal hemianopia. In ARVO 2014 . Orlando, FL.
Kim, J., Jung, J. - H., Jeong, Y., Hong, K., & Lee, B. (2014). Real-time integral imaging system for light field microscopy. Opt. Express , 22, 10210–10220 . OSA. Publisher's VersionAbstract
We propose a real-time integral imaging system for light field microscopy systems. To implement a 3D live in-vivo experimental environment for multiple experimentalists, we generate elemental images for an integral imaging system from the captured light field with a light field microscope in real-time. We apply the f-number matching method to generate an elemental image to reconstruct an undistorted 3D image. Our implemented system produces real and orthoscopic 3D images of micro objects in 16 frames per second. We verify the proposed system via experiments using Caenorhabditis elegans.
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Jung, J. - H., & Peli, E. (2014). Confocal Imaging for Visual Prostheses. In US Army Medical Research and Materiel Command/“Art of the Possible” in Vision Restoration Workshop (Vol. [Invited Talk]) . Frederick, MD.
Jung, J. - H. (2014). Distortions to visual field expansion with high-power Fresnel prisms. SPIE Newsroom , DOI: 10.1117/2.1201402.005350. Publisher's Version [PDF]
Jung, J. - H., & Peli, E. (2014). Configuring multiplexing prism for field expansion of acquired monocular vision and normally sighted. In Vision 2014 (11th International Conference on Low Vision) . Melbourne, Australia. [PDF]
Jung, J. - H., & Peli, E. (2014). Impact of high power and high incidence angles on peripheral prisms for homonymous hemianopia. In Vision 2014 (11th International Conference on Low Vision) . Melbourne, Australia. [PDF]
Jung, J. - H., & Peli, E. (2014). Impact of high power and angle of incidence on prism corrections for visual field loss. Optical Engineering , 53 (6), 061707. Publisher's VersionAbstract
Abstract.  Prism distortions and spurious reflections are not usually considered when prescribing prisms to compensate for visual field loss due to homonymous hemianopia. Distortions and reflections in the high-power Fresnel prisms used in peripheral prism placement can be considerable, and the simplifying assumption that prism deflection power is independent of angle of incidence into the prisms results in substantial errors. We analyze the effects of high prism power and incidence angle on the field expansion, size of the apical scotomas, and image compression/expansion. We analyze and illustrate the effects of reflections within the Fresnel prisms, primarily due to reflections at the bases, and secondarily due to surface reflections. The strength and location of these effects differs materially depending on whether the serrated prismatic surface is placed toward or away from the eye, and this affects the contribution of the reflections to visual confusion, diplopia, false alarms, and loss of contrast. We conclude with suggestions for controlling and mitigating these effects in clinical practice.
[PDF] highpowerprism_datasharing_2.xlsx