skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Super-resolution for scanning light stimulation systems

Abstract

Super-resolution (SR) is a technique used in digital image processing to overcome the resolution limitation of imaging systems. In this process, a single high resolution image is reconstructed from multiple low resolution images. SR is commonly used for CCD and CMOS (Complementary Metal-Oxide-Semiconductor) sensor images, as well as for medical applications, e.g., magnetic resonance imaging. Here, we demonstrate that super-resolution can be applied with scanning light stimulation (LS) systems, which are common to obtain space-resolved electro-optical parameters of a sample. For our purposes, the Projection Onto Convex Sets (POCS) was chosen and modified to suit the needs of LS systems. To demonstrate the SR adaption, an Optical Beam Induced Current (OBIC) LS system was used. The POCS algorithm was optimized by means of OBIC short circuit current measurements on a multicrystalline solar cell, resulting in a mean square error reduction of up to 61% and improved image quality.

Authors:
; ; ;  [1]
  1. Faculty of Engineering, NST and CENIDE, University of Duisburg-Essen, Bismarckstr. 81, 47057 Duisburg (Germany)
Publication Date:
OSTI Identifier:
22597626
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 87; Journal Issue: 9; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ALGORITHMS; BEAMS; CHARGE-COUPLED DEVICES; ELECTRICAL FAULTS; ERRORS; IMAGE PROCESSING; IMAGES; MAGNETIC RESONANCE; METALS; NMR IMAGING; REDUCTION; RESOLUTION; SEMICONDUCTOR MATERIALS; SENSORS; SOLAR CELLS; STIMULATION

Citation Formats

Bitzer, L. A., Neumann, K., Benson, N., E-mail: niels.benson@uni-due.de, and Schmechel, R. Super-resolution for scanning light stimulation systems. United States: N. p., 2016. Web. doi:10.1063/1.4961748.
Bitzer, L. A., Neumann, K., Benson, N., E-mail: niels.benson@uni-due.de, & Schmechel, R. Super-resolution for scanning light stimulation systems. United States. doi:10.1063/1.4961748.
Bitzer, L. A., Neumann, K., Benson, N., E-mail: niels.benson@uni-due.de, and Schmechel, R. Thu . "Super-resolution for scanning light stimulation systems". United States. doi:10.1063/1.4961748.
@article{osti_22597626,
title = {Super-resolution for scanning light stimulation systems},
author = {Bitzer, L. A. and Neumann, K. and Benson, N., E-mail: niels.benson@uni-due.de and Schmechel, R.},
abstractNote = {Super-resolution (SR) is a technique used in digital image processing to overcome the resolution limitation of imaging systems. In this process, a single high resolution image is reconstructed from multiple low resolution images. SR is commonly used for CCD and CMOS (Complementary Metal-Oxide-Semiconductor) sensor images, as well as for medical applications, e.g., magnetic resonance imaging. Here, we demonstrate that super-resolution can be applied with scanning light stimulation (LS) systems, which are common to obtain space-resolved electro-optical parameters of a sample. For our purposes, the Projection Onto Convex Sets (POCS) was chosen and modified to suit the needs of LS systems. To demonstrate the SR adaption, an Optical Beam Induced Current (OBIC) LS system was used. The POCS algorithm was optimized by means of OBIC short circuit current measurements on a multicrystalline solar cell, resulting in a mean square error reduction of up to 61% and improved image quality.},
doi = {10.1063/1.4961748},
journal = {Review of Scientific Instruments},
number = 9,
volume = 87,
place = {United States},
year = {Thu Sep 15 00:00:00 EDT 2016},
month = {Thu Sep 15 00:00:00 EDT 2016}
}