10 results on '"MULTISPECTRAL imaging"'
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2. Die digitale Bergung kriegsbeschädigter Archivalien des Landesarchivs NRW zur Reformationsgeschichte der Stadt Aachen.
- Author
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KRAM, BENJAMIN and PETERS, KRISTIAN
- Subjects
- *
WORLD War II , *DIGITAL images , *DIGITIZATION , *COMPUTER graphics , *DIGITAL image correlation , *CORRELATION methods (Signal processing) , *MULTISPECTRAL imaging , *POST-World War II Period , *ELECTRONIC records , *HISTORY of archives - Abstract
How do we view on archival records? Traditionally, we consult archival materials in reading rooms. This traditional setting has changed fundamentally since archival documents are also displayed on screens. Although there are many similarities between paper and the screen, there is one crucial difference when it comes to digital images of archival documents: digital images are nothing more than computer graphics. This opens up a fascinating world with countless possibilities for image manipulation. In this paper, we will look at some of the disruptive consequences of this technological paradigm shift. To this end, we present various digitization techniques used at the State Archives of North Rhine-Westphalia on an archival collection consisting of early modern records that were severely damaged during World War II (Landesarchiv NRW, Abteilung Rheinland, RW 1001 Reichsstadt Aachen, Akten Nr. 55a 77b). Many of these documents have washed-out texts due to water exposure. By using advanced digitization technologies such as multispectral imaging, we are attempting to restore digitally the writing and make the invisible text visible again. [ABSTRACT FROM AUTHOR]
- Published
- 2023
3. An amphibious drone for aerial, surface, and underwater assets and environmental remote monitoring to support the sustainability of unmanned offshore converted platform.
- Author
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Cacace, Jonathan, Paduano, Gianmarco, Pierro, Fabio, and Lippiello, Vincenzo
- Subjects
- *
ROBOTICS , *DRONE aircraft , *MEASURING instruments , *MARINE ecology , *SURFACE structure , *MULTISPECTRAL imaging - Abstract
The PlaCE project aims at investigating technologies and solutions for the ecosustainable reuse of offshore platforms at the end of their production phase. In this context, robotic mobile solutions that allow in a versatile way to monitor the activities by acquiring environmental data and parameters in the entire area of interest have been explored. This paper presents a solution achieved through the development of the proof-of-concept of a robotic technology concerning a hybrid Autonomous / Remotely Piloted Aircraft System (A/RPAS), hereinafter referred to as Amphibious Drone, operating in complete autonomy and having the platform as an operational base. The Amphibious Drone is developed to cover the entire area of interest surrounding the platform being converted, with the ability to carry the measuring instruments and probes in aerial overflight for monitoring the sea surface and the surface structures as well as ditching to deploy a sensors-equipped probe for measuring underwater parameters along the water column. A wide range of probes and instruments have been integrated into the system such as multispectral camera, Photosynthetically Active Radiation (PAR) probes, Conductivity-Temperature-Depth (CTD) probes, etc. for the analysis of oceanographic and biological parameters of the marine ecosystem. The management of the Amphibious Drone, as regards the shelter between missions, battery recharging, data exchange, required reconfigurations and missions scheduling is carried out from a specially designed Docking Station. The PlaCE project is co-funded by the European Union within the projects "PON Ricerca e Innovazione 2014-2020". [ABSTRACT FROM AUTHOR]
- Published
- 2023
4. Wofür wird multispektrale Bildgebung in wissenschaftlichen Bibliotheken eingesetzt?
- Author
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Janke, Andreas
- Subjects
ELECTROMAGNETIC spectrum ,MULTISPECTRAL imaging ,GRADUATE education ,WATERMARKS ,WAVELENGTHS ,LIBRARIES - Abstract
Copyright of ABI Technik is the property of De Gruyter and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
- Full Text
- View/download PDF
5. Profilkühlkörper.
- Subjects
HEAT sinks ,POWER electronics ,MICROSCOPY ,ENERGY industries ,FLUORESCENCE ,LIGHT sources ,MULTISPECTRAL imaging - Abstract
Copyright of Ke NEXT: Konstruktion & Engineering is the property of Verlag Moderne Indusrie and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
6. Entwicklung der Echtzeitmultispektralbildgebung für die Diagnostik des Harnblasenkarzinoms.
- Author
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Bolenz, C., Rother, J., Meessen, S., Grychtol, B., Majlesara, A., Gharabaghi, N., Günes, C., Ritter, M., Deliolanis, N., Michel, M. S., and Kriegmair, M. C.
- Abstract
Copyright of Der Urologe A is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2019
- Full Text
- View/download PDF
7. Das Ungelesene lesen: Die Aufzeichnungen von Marcel Nadjari, Mitglied des jüdischen Sonderkommandos von Auschwitz-Birkenau, und ihre Erschließung.
- Author
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Polian, Pavel
- Subjects
AUSCHWITZ concentration camp ,HOLOCAUST personal narratives ,MULTISPECTRAL imaging ,PRESERVATION of manuscripts ,HISTORICAL source material - Abstract
This documentation is dedicated to the history of the finding and deciphering of the handwritten account of Marcel Nadjari (1917-1971), a Greek Jew who was a member of the Sonderkommando in Auschwitz-Birkenau, which had to work in the gas chambers and crematoria. It covers one of a total of nine analogous accounts which were composed by five members of the Sonderkommando as a secret message from the centre of extermination and hidden there for posterity. For 35 years, Nadjari's manuscript remained buried in a thermos flask in the ground and was only discovered in 1980. Its condition was so bad, that only approximately ten percent of the text were legible. The Russian computer specialist Aleksandr Nikityaev however has been able to make almost 90 percent of the text legible through the use of multispectral images, permitting a whole new form of access to the text, which is published here in this form for the first time. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
8. Prüfung und Messung elektrischer Systeme.
- Subjects
THERMOGRAPHY ,PROBLEM solving ,MULTISPECTRAL imaging ,PROFESSIONAL employees ,MEASUREMENT - Abstract
Copyright of DE: Das Elektrohandwerk is the property of Hüthig GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2024
9. Konzeption, Aufbau und Charakterisierung eines multispektralen optischen Messsystems
- Author
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Himmelbauer, Elias
- Subjects
Principal Component Analysis ,Reflexionsspektrum ,multispectral imaging ,Multispektralkamera ,LED Charakterisierung ,multispectral camera ,reflection spectrum ,multispektrale Kamera ,LED characterization - Abstract
In einer Zeit, in der industrielle Prozesse immer weiter automatisiert werden, ist der Bedarf an berührungslosen Messsystemen stark ansteigend. Neben kapazitiven und induktiven Sensoren werden vor allem optische Sensoren in einer Vielzahl von Anwendungen eingesetzt. Von großer Bedeutung sind dabei Kameras, welche vielfach zur Prozessüberwachung und Qualitätssicherung von verschiedensten Produkten eingesetzt werden können. Durch Verwendung von multispektralen Kameras kann der Informationsgehalt gegenüber Bildern von monochromen oder RGB-Kameras erheblich gesteigert werden, da diese über mehr spektrale Bereiche verfügen, welche zudem auch außerhalb des sichtbaren Bereichs liegen können. In dieser Arbeit wird eine Multispektralkamera mit zwölf verschiedenen spektralen Bereichen vor allem im sichtbaren Bereich konzipiert und aufgebaut. Die grundsätzliche Funktionsweise beruht auf der Beleuchtung des Messobjekts mit Leuchtdioden und Aufnahme der Bilder mit einer monochromen Kamera. Die Beleuchtung wird bei verschiedenen Umgebungstemperaturen charakterisiert und die erreichte Reproduzierbarkeit der Beleuchtungsspektren beurteilt. Anschließend werden Bilder eines Referenzobjekts mit bekanntem Reflexionsspektrum aufgenommen und ein Dunkelabgleich der Kamera durchgeführt. Um die Funktionsfähigkeit der Multispektralkamera zu zeigen, werden Bilder von verschiedenen Messobjekten aufgenommen und deren Reflexionsspektren bestimmt. Mit einem Verfahren zur größtenteils informationserhaltenden Datenreduktion werden diese weiterverarbeitet und die daraus erhaltenden Ergebnisse diskutiert. At a time where industrial processes are becoming more and more automated, the demand for non-contact measuring systems is increasing rapidly. In addition to capacitive and inductive sensors, optical sensors in particular are used in a large number of applications. Cameras are of high importance in the field of optical sensors, as they can be used in many cases for process monitoring and quality assurance in a wide variety of products. By using multispectral cameras, the information content obtained can be increased significantly compared to monochrome or RGB-cameras, since these are taking images in several spectral regions even outside the visible range. In this work, a multispectral camera which analyzes twelve spectral regions, especially in the visible range, is designed and built. The essential functionality is based on illuminating the measured object with light-emitting-diodes of certain wavelengths and taking the images with a monochrome camera. The illumination is characterized at different ambient temperatures and the achieved reproducibility of the illumination spectra is assessed. Subsequently, images are taken from a reference object with a known reflection spectrum and a dark calibration of the camera is carried out. To demonstrate the functionallity of the multispectral camera, images of different measurment objects are taken and their reflection spectra are assessed. Using a method for largely information-preserving data reduction, these images and spectra are further processed and the results obtained are discussed. eingereicht von Elias Himmelbauer BSc Masterarbeit Universität Linz 2022 Arbeit auf den öffentlichen PCs in den Bibliotheken der JKU+Medizin abrufbar
- Published
- 2022
10. [The development of real-time multispectral imaging for the diagnostics of bladder cancer].
- Author
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Bolenz C, Rother J, Meessen S, Grychtol B, Majlesara A, Gharabaghi N, Günes C, Ritter M, Deliolanis N, Michel MS, and Kriegmair MC
- Subjects
- Diagnostic Tests, Routine, Humans, Time, Cystoscopy, Narrow Band Imaging, Urinary Bladder Neoplasms diagnostic imaging
- Abstract
The performance of white light (WL) cystoscopy in the diagnostics of bladder cancer can be optimized by the use of modern imaging modalities, such as photodynamic diagnostics (PDD) and narrow band imaging (NBI). Real-time multispectral imaging (rMSI) enables simultaneous imaging of reflectance and fluorescence modalities in multiple spectral bands. We created a multiparametric cystoscopy image by digital overlapping of several modalities, e.g. WL, enhanced vascular contrast (EVC), raw fluorescence mode, protoporphyrin IX and autofluorescence (AF). The technical development and the subsequent clinical implementation of rMSI required a structured preclinical evaluation process, including both ex vivo and in vivo trials before the technology can be applied in patients. This review article presents the phases of testing, validation and the first clinical application of rMSI in urological endoscopy.
- Published
- 2019
- Full Text
- View/download PDF
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