Skip to content
Licensed Unlicensed Requires Authentication Published by De Gruyter (O) June 6, 2017

Geometrical and spectral data stitching for combining hyperspectral imaging systems

Kombination geometrischer und spektraler Messwerte von hyperspektralen Bildaufnahmesystemen
  • Fabian Stark

    Fabian Stark born 1991 studied from 2011 to 2016 at the Technische Universität Ilmenau where he received the B.Sc. and M.Sc. in mechanical engineering. Since 2017 he is working at the Fachgebiet Fertigungstechnik for the Mittelstand 4.0 Kompetenzzentrum Ilmenau.

    Department of Quality Assurance and Industrial Image Processing, Technische Universität Ilmenau, Gustav-Kirchhoff-Platz 2, 98693 Ilmenau, Germany, www.tu-ilmenau.de/QualitaetsSicherung/

    , Maik Rosenberger

    Maik Rosenberger born 1979 studied mechanical engineering deepening direction measurement and sensor technology at the Technische Universität Ilmenau. From 2005 he worked as a project engineer in several subprojects at the Steinbeis Qualitätssicherung und Bildverarbeitung GmbH. After his graduation, he became head of the research group QualiMess (2008–2013). Since 2014 he is the group leader of the multispectral imaging and embedded processing research group.

    Department of Quality Assurance and Industrial Image Processing, Technische Universität Ilmenau, Gustav-Kirchhoff-Platz 2, 98693 Ilmenau, Germany, www.tu-ilmenau.de/QualitaetsSicherung/

    EMAIL logo
    , Paul-Gerald Dittrich

    Paul-Gerald Dittrich born 1989 received his Master of Engineering in System Design with specialization on optical and optoelectronic sensors from the Ernst-Abbe-University of Applied Sciences Jena in 2014. Since 2007 he is working in the SpectroNet Division of the Technologie- und Innovationspark Jena GmbH as Clustermanager. Since 2015 he is also working at the Technische Universität Ilmenau at the Department of Quality Assurance and Industrial Image Processing as scientific employee.

    Department of Quality Assurance and Industrial Image Processing, Technische Universität Ilmenau, Gustav-Kirchhoff-Platz 2, 98693 Ilmenau, Germany, www.tu-ilmenau.de/QualitaetsSicherung/

    , Rafael Celestre

    Rafael Celestre, born in São Bernardo do Campo, Brazil has done a 5-year bachelor program in electrical engineering, at the University of Campinas, Brazil. He is currently doing a masters in optronics/optical systems at the Technische Universität Ilmenau, Germany. Since end of 2015 he is part of the Department of Quality Assurance and Industrial Image Processing, where he has been working with multispectral imaging.

    Department of Quality Assurance and Industrial Image Processing, Technische Universität Ilmenau, Gustav-Kirchhoff-Platz 2, 98693 Ilmenau, Germany, www.tu-ilmenau.de/QualitaetsSicherung/

    , Michael Hänsel

    Michael Hänsel born in 1986 received his Master of Science in Biomedical Engineering at the Technische Universität Ilmenau in 2016. Since then he is a scientific employee researching applications for light-field cameras.

    Department of Quality Assurance and Industrial Image Processing, Technische Universität Ilmenau, Gustav-Kirchhoff-Platz 2, 98693 Ilmenau, Germany, www.tu-ilmenau.de/QualitaetsSicherung/

    and Gunther Notni

    Gunther Notni, born 1963, studied physics at the Friederich-Schiller-Universität Jena from 1983–1988. From 1988 to 1992, he was aspirant at the Institute of Applied Optics of the Friedrich-Schiller-Universität Jena and obtained his PhD degree. Since 1992 has worked in Jena at the Fraunhofer Institute for Applied Optics and Precision Engineering IOF. Here, he assumed the head of the Department of Optical Systems in 1994. His work focuses on the development of coherent and incoherent optical 3D measurement methods, high-resolution surface and shape measuring methods, application of wavelet methods in optical metrology, optical techniques of system development and the development of THz systems. As part of the activities he managed a variety of projects of the DFG, BMBF and the EU. In the winter term 2014/15 he was appointed as endowed Professor at the Technische Universität Ilmenau of the newly initiated professorship Industrial Image Processing. Furthermore, he is the acting head of the Department of Quality Assurance and Industrial Image Processing.

    Department of Quality Assurance and Industrial Image Processing, Technische Universität Ilmenau, Gustav-Kirchhoff-Platz 2, 98693 Ilmenau, Germany, www.tu-ilmenau.de/QualitaetsSicherung/

Abstract

One way to increase the amount of information acquired via hyperspectral imaging and therefore to increase the possibility of data analysis is combining the spatial and spectral information of hyperspectral data sets. The aforementioned data sets are obtained by cameras covering different spectral ranges. The purpose of this article is to develop an algorithm which is able to combine two data sets acquired by two hyperspectral pushbroom imagers, covering the visible (VIS) and the near infrared (NIR) wavelength range. Initially, the effect of optical aberrations, as well as errors via the image registration were examined. Subsequently a correction algorithm for both the optical aberration and the image registration is elaborated.

Zusammenfassung

Eine Möglichkeit den Informationsgehalt und damit die Analysemöglichkeiten in der hyperspektralen Bildverarbeitung zu erhöhen, ist die geometrische und spektrometrische Kombination der Datensätze von zwei in unterschiedlichen Spektralbereichen sensitiven Bildaufnahmesystemen. Ziel dieses Artikels ist die Entwicklung eines Algorithmus für die Kombination der Aufnahmen zweier hyperspektraler ,,Pushbroom“-Imager im sichtbaren (VIS) und im kurzwelligen Infrarotbereich (NIR). Dafür wurden zunächst die Abweichungen betrachtet, die bei der Bildaufnahme mit den Imagern selbst sowie bei der Bildregistrierung beider Aufnahmen entstehen. Anschließend wurde eine algorithmische Korrektur dieser Abweichungen mittels einer Kalibrierung der Imager ausgearbeitet.

About the authors

Fabian Stark

Fabian Stark born 1991 studied from 2011 to 2016 at the Technische Universität Ilmenau where he received the B.Sc. and M.Sc. in mechanical engineering. Since 2017 he is working at the Fachgebiet Fertigungstechnik for the Mittelstand 4.0 Kompetenzzentrum Ilmenau.

Department of Quality Assurance and Industrial Image Processing, Technische Universität Ilmenau, Gustav-Kirchhoff-Platz 2, 98693 Ilmenau, Germany, www.tu-ilmenau.de/QualitaetsSicherung/

Maik Rosenberger

Maik Rosenberger born 1979 studied mechanical engineering deepening direction measurement and sensor technology at the Technische Universität Ilmenau. From 2005 he worked as a project engineer in several subprojects at the Steinbeis Qualitätssicherung und Bildverarbeitung GmbH. After his graduation, he became head of the research group QualiMess (2008–2013). Since 2014 he is the group leader of the multispectral imaging and embedded processing research group.

Department of Quality Assurance and Industrial Image Processing, Technische Universität Ilmenau, Gustav-Kirchhoff-Platz 2, 98693 Ilmenau, Germany, www.tu-ilmenau.de/QualitaetsSicherung/

Paul-Gerald Dittrich

Paul-Gerald Dittrich born 1989 received his Master of Engineering in System Design with specialization on optical and optoelectronic sensors from the Ernst-Abbe-University of Applied Sciences Jena in 2014. Since 2007 he is working in the SpectroNet Division of the Technologie- und Innovationspark Jena GmbH as Clustermanager. Since 2015 he is also working at the Technische Universität Ilmenau at the Department of Quality Assurance and Industrial Image Processing as scientific employee.

Department of Quality Assurance and Industrial Image Processing, Technische Universität Ilmenau, Gustav-Kirchhoff-Platz 2, 98693 Ilmenau, Germany, www.tu-ilmenau.de/QualitaetsSicherung/

Rafael Celestre

Rafael Celestre, born in São Bernardo do Campo, Brazil has done a 5-year bachelor program in electrical engineering, at the University of Campinas, Brazil. He is currently doing a masters in optronics/optical systems at the Technische Universität Ilmenau, Germany. Since end of 2015 he is part of the Department of Quality Assurance and Industrial Image Processing, where he has been working with multispectral imaging.

Department of Quality Assurance and Industrial Image Processing, Technische Universität Ilmenau, Gustav-Kirchhoff-Platz 2, 98693 Ilmenau, Germany, www.tu-ilmenau.de/QualitaetsSicherung/

Michael Hänsel

Michael Hänsel born in 1986 received his Master of Science in Biomedical Engineering at the Technische Universität Ilmenau in 2016. Since then he is a scientific employee researching applications for light-field cameras.

Department of Quality Assurance and Industrial Image Processing, Technische Universität Ilmenau, Gustav-Kirchhoff-Platz 2, 98693 Ilmenau, Germany, www.tu-ilmenau.de/QualitaetsSicherung/

Gunther Notni

Gunther Notni, born 1963, studied physics at the Friederich-Schiller-Universität Jena from 1983–1988. From 1988 to 1992, he was aspirant at the Institute of Applied Optics of the Friedrich-Schiller-Universität Jena and obtained his PhD degree. Since 1992 has worked in Jena at the Fraunhofer Institute for Applied Optics and Precision Engineering IOF. Here, he assumed the head of the Department of Optical Systems in 1994. His work focuses on the development of coherent and incoherent optical 3D measurement methods, high-resolution surface and shape measuring methods, application of wavelet methods in optical metrology, optical techniques of system development and the development of THz systems. As part of the activities he managed a variety of projects of the DFG, BMBF and the EU. In the winter term 2014/15 he was appointed as endowed Professor at the Technische Universität Ilmenau of the newly initiated professorship Industrial Image Processing. Furthermore, he is the acting head of the Department of Quality Assurance and Industrial Image Processing.

Department of Quality Assurance and Industrial Image Processing, Technische Universität Ilmenau, Gustav-Kirchhoff-Platz 2, 98693 Ilmenau, Germany, www.tu-ilmenau.de/QualitaetsSicherung/

Acknowledgement

This work received financial support from the InnoProfile project “ID2M QualiMess Next Generation” (03IPT709X) from the German Federal Ministry of Education and Research.

Received: 2017-3-13
Accepted: 2017-5-11
Published Online: 2017-6-6
Published in Print: 2017-6-27

©2017 Walter de Gruyter Berlin/Boston

Downloaded on 29.3.2024 from https://www.degruyter.com/document/doi/10.1515/auto-2017-0027/html
Scroll to top button