Dr. Rainer Stotzka Profile

Dr. Rainer Stotzka

PhD at Forschungszentrum Karlsruhe

SPIE Involvement:

Author

Publications (9)

Proceedings Article | 8 February 2015 Paper

Software workflow for the automatic tagging of medieval manuscript images (SWATI)

Swati Chandna, Danah Tonne, Thomas Jejkal, Rainer Stotzka, Celia Krause, Philipp Vanscheidt, Hannah Busch, Ajinkya Prabhune

Proceedings Volume 9402, 940206 (2015) https://doi.org/10.1117/12.2076124

KEYWORDS: Image segmentation, Feature extraction, Statistical analysis, Analytical research, Data storage, Calibration, Visualization, Data archive systems, Data centers, Image analysis

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Digital methods, tools and algorithms are gaining in importance for the analysis of digitized manuscript collections in the arts and humanities. One example is the BMBF-funded research project “eCodicology” which aims to design, evaluate and optimize algorithms for the automatic identification of macro- and micro-structural layout features of medieval manuscripts. The main goal of this research project is to provide better insights into high-dimensional datasets of medieval manuscripts for humanities scholars. The heterogeneous nature and size of the humanities data and the need to create a database of automatically extracted reproducible features for better statistical and visual analysis are the main challenges in designing a workflow for the arts and humanities. This paper presents a concept of a workflow for the automatic tagging of medieval manuscripts. As a starting point, the workflow uses medieval manuscripts digitized within the scope of the project Virtual Scriptorium St. Matthias". Firstly, these digitized manuscripts are ingested into a data repository. Secondly, specific algorithms are adapted or designed for the identification of macro- and micro-structural layout elements like page size, writing space, number of lines etc. And lastly, a statistical analysis and scientific evaluation of the manuscripts groups are performed. The workflow is designed generically to process large amounts of data automatically with any desired algorithm for feature extraction. As a result, a database of objectified and reproducible features is created which helps to analyze and visualize hidden relationships of around 170,000 pages. The workflow shows the potential of automatic image analysis by enabling the processing of a single page in less than a minute. Furthermore, the accuracy tests of the workflow on a small set of manuscripts with respect to features like page size and text areas show that automatic and manual analysis are comparable. The usage of a computer cluster will allow the highly performant processing of large amounts of data. The software framework itself will be integrated as a service into the DARIAH infrastructure to make it adaptable for wider range of communities.

Proceedings Article | 12 April 2005 Paper

Ultrasonic attenuation tomography based on log-spectrum analysis

Radovan Jirik, Rainer Stotzka, Torfinn Taxt

Proceedings Volume 5750, (2005) https://doi.org/10.1117/12.594474

KEYWORDS: Signal attenuation, Ultrasonography, Transducers, Tomography, Image segmentation, Computed tomography, Tissues, Signal processing, Scattering, Wave propagation

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Proceedings Article | 12 April 2005 Paper

High resolution image reconstruction in ultrasound computer tomography using deconvolution

Rainer Stotzka, Nicole Ruiter, Tim Mueller, Rong Liu, Hartmut Gemmeke

Proceedings Volume 5750, (2005) https://doi.org/10.1117/12.595149

KEYWORDS: Ultrasonography, Deconvolution, Transducers, Tissues, Electronic filtering, Computed tomography, Image restoration, Tomography, Reconstruction algorithms, Image resolution

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Proceedings Article | 28 April 2004 Paper

Prototype of a new 3D ultrasound computer tomography system: transducer design and data recording

Rainer Stotzka, Helmut Widmann, Tim Mueller, Klaus Schlote-Holubek, Hartmut Gemmeke, Nicole Ruiter, Georg Goebel

Proceedings Volume 5373, (2004) https://doi.org/10.1117/12.535351

KEYWORDS: Transducers, Ultrasonography, Computed tomography, Computing systems, Tomography, Prototyping, Chemical elements, Data acquisition, Ceramics, Electronics

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Proceedings Article | 23 May 2003 Paper

Development of transducer arrays for ultrasound-computer tomography

Rainer Stotzka, Georg Gobel, Klaus Schlote-Holubek

Proceedings Volume 5035, (2003) https://doi.org/10.1117/12.479964

KEYWORDS: Transducers, Ultrasonography, Computed tomography, Ceramics, Chemical elements, Tomography, Sensors, Ultrasonics, Tissues, Computing systems

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Proceedings Article | 11 April 2002 Paper

Medical imaging by ultrasound computer tomography

Rainer Stotzka, Jan Wuerfel, Tim Mueller, Hartmut Gemmeke

Proceedings Volume 4687, (2002) https://doi.org/10.1117/12.462144

KEYWORDS: Ultrasonography, Transducers, Tissues, Tomography, Computed tomography, Receivers, Image quality, Data acquisition, Absorption, Breast

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Proceedings Article | 6 June 2000 Paper

Hybrid neural network and statistical classification algorithms in computer-assisted diagnosis

Rainer Stotzka

Proceedings Volume 3979, (2000) https://doi.org/10.1117/12.387751

KEYWORDS: Tumors, Neural networks, Image classification, Mesothelioma, Classification systems, Feature extraction, Detection and tracking algorithms, Image segmentation, Image compression, Computing systems

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