TUNUKI
Monitoring of tunnel mouths using artificial intelligence (09/2022 - 08/2023), sponsored by the German Federal Ministry of Digital Affairs and Transport (mFund innovation initiative).

Translingo
Digital speech therapy for people who want to regain their speech after a stroke (aphasics) (09/2021 - 08/2024), funded by the German Federal Ministry of Education and Research(link to project homepage)

KiRaPol.5G
Artificial Intelligence for Radar Systems to Support Police Surveillance in Public Places and Stations (01/2022 - 06/2024), sponsored by the Ministry of Economic Affairs, Industry, Climate Protection and Energy of the State of North Rhine-Westphalia (link to project homepage)

MLPCO
Using Machine Learning to Predict Crop Output of Small scale farmers, (01/2021 - 11/2021), funded by the German Federal Ministry of Education and Research.

KlaRa
Development of Algorithms for Object Classification with Radar Signals, (09/2020 - 12/2022), sponsored by the "Central Innovation Program for SMEs" (ZIM)

plsm
User-oriented design of public spaces using sensor technology (04/2018 - 03/2021), funded by the "European Regional Development Fund (ERDF)" ( link to project homepage)

FahrRad
A sensor-based bicycle assistance system esp. for elderly cyclists (05/2017 - 05/2020), sponsored by the "European Regional Development Fund (ERDF)" (link to project homepage)

Smart Home Voice Control
Development of a voice-operated interface for home automation (11/2016 - 10/2019), funded by the "Central Innovation Program for SMEs" (ZIM).

Voice control of a wet cell
Voice control system of a wet cell in a train for Siemens Mobility GmbH (2022)

Evaluation of Point Clouds
Algorithm for the detection of particle trajectories in point clouds from Time Projection Chambers for Universidade de Santiago de Compostela (2022)

Symmetry Scores
Software to compute symmetry scores of graphical elements for Intelligent Design Automated in Closter, USA (2020)

MRI evaluation
Software for semi-automatic muscle segmentation in MRI images for the "German Aerospace Center" in Cologne, Germany (2019)

Textured 3D city model
Area-wide 3D city model from laser scan data and cadastral floor plans for the city of Dortmund (2019)

Quality control
Automatic detection of solder joint defects for modus hightec-electronics in Willich (2017)

Cost estimation
Forecasting method for repair costs for AUTOonline in Neuss (2014)

Insect monitoring
Automatic long-term insect monitoring using dynamic vision sensors to record biodiversity through the use of AI.

3D City Model
Fully automated generation of virtual 3D city models using a combination of different data sources.
More info: Online model of Krefeld, Germany.

Gamera
Python framework for creating automatic document recognition systems.
Further information: Homepage of the open-source software

Wealth Distribution
Statistical method for estimating wealth distribution from incomplete data.
More info: Technical report & R code

Trajectory Detection
Automatictrajectory detection in point clouds.
More info: Open source software & demo

• S. Goebbels, R. Pohle-Fröhlich: Automatic Reconstruction of Roof Overhangs for 3D City Models. International Conference on Computer Graphics Theory and Applications (GRAPP). pp. 145-152 (2023)
• Pohle-Fröhlich, R. and Bolten, T. (2023). Concept Study for Dynamic Vision Sensor Based Insect Monitoring. International Conference on Computer Vision Theory and Applications (VISAPP), pp. 411-418 (2023).
• Bolten, T.; Neumann, C.; Pohle-Fröhlich, R. and Tönnies, K.: N-MuPeTS: Event Camera Dataset for Multi-Person Tracking and Instance Segmentation. International Conference on Computer Vision Theory and Applications (VISAPP), pp. 290-300 (2023).
• Bolten, T.; Pohle-Fröhlich, R. and Tönnies, K.: Semantic Segmentation on Neuromorphic Vision Sensor Event Streams Using PointNet++ and UNet Based Processing Approaches. International Conference on Computer Vision Theory and Applications (VISAPP), pp. 168-178 (2023).
• Hensel, S., Goebbels, S., Kada, M.: Facade Layout Completion with Long Short-Term Memory Networks. In: Computer Vision, Imaging and Computer Graphics Theory and Applications. VISIGRAPP 2021. communications in computer and information science, vol 1691. springer, pp. 21-40 (2023).
• W. Fritzsche, S. Goebbels, S. Hensel, M. Rußinski, N. Schuch: Inpainting Applied to Facade Images: A Comparison of Algorithms. In: M. El Yacoubi et al: Pattern Recognition and Artificial Intelligence, Proc. ICPRAI 2022 Part I, LNCS 13363, Springer, Berlin, pp. 410-422 (2022)
• H.G. Hirsch: Speech Assistant System With Local Client and Server Devices to Guarantee Data Privacy. Frontiers in Computer Science 2022/4, article 778367 (2022).
• T. Bolten, R. Pohle-Fröhlich, D. Volker, C. Brück, N. Beucker, H.G. Hirsch: Visualization of Activity Data from a Sensor-based Long-term Monitoring Study at a Playground. International Conference on Information Visualization Theory and Applications (IVAPP), pp. 146-155 (2022).
• T. Bolten, F. Lentzen, R. Pohle-Fröhlich, Klaus D. Tönnies: Evaluation of Deep Learning based 3D-Point-Cloud Processing Techniques for Semantic Segmentation of Neuromorphic Vision Sensor Event Streams. International Conference on Computer Vision Theory and Applications (VISAPP), pp. 168-179 (2022).
• S. Goebbels: On Sharpness of an Error Bound for Deep ReLU Network Approximation. sampl. Theory Signal Process. data anal. 30.3, 2022
• T. Bolten, R. Pohle-Frohlich, K.D. Tonnies. DVS-OUTLAB: A Neuromorphic Event-Based Long Time Monitoring Dataset for Real-World Outdoor Scenarios. 2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition, pp. 1348-1357 (2021)
• S. Goebbels, F. Gurski, D. Komander: The knapsack problem with special neighbor constraints on directed co-graphs. Proceedings Operations Research 2021 (OR 2021 Bern), Springer, Berlin, p. 95-100. The much more comprehensive journal version of this paper can be found here: https://doi.org/10.1007/s00186-021-00767-5 (Open Access).
• S. Goebbels, R. Pohle-Fröhlich: Automatic Unfolding of CityGML Buildings to Paper Models. Geographies 1(3), pp. 333-345 (2021).
• S. Goebbels, C. Dalitz: RECONSTRUCTION OF BRIDGE SUPERSTRUCTURES FROM AIRBORNE LASER SCANNING POINT CLOUDS. ISPRS Ann. Photogram. Remote Sens. Spatial Inf. Sci, VIII-4/W2-2021, pp. 121-128 (2021).
• S. Hensel, S. Goebbels, M. Kada: BUILDING ROOF VECTORIZATION WITH PPGNET. Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLVI-4/W4-2021, pp. 85-90 (2021).
• D. L. Belavy , P. J. Owen, G. Armbrecht, M. Bansmann, J. Zange, Y. Ling, R. Pohle-Fröhlich, D. Felsenberg: Quantitative assessment of the lumbar intervertebral disc via T2 shows excellent long-term reliability. PLoSONE 16(4):e0249855 (2021).
• S. Goebbels: 3D Reconstruction of Bridges from Airborne Laser Scanning Data and Cadastral Footprints. Journal of Geovisualization and Spatial Analysis, article no. 10 (2021).
• S. Hensel, S. Goebbels, M.Kada: LSTM Architectures for Facade Structure Completion. International Conference on Computer Graphics Theory and Applications (GRAPP), pp. 15-24 (2021).
• S. Goebbels: On Sharpness of Error Bounds for Multivariate Neural
• Network Approximation. Ricerche di Matematica (2020), https://doi.org/10.1007/s11587-020-00549-x
• S. Goebbels: On Sharpness of Error Bounds for Univariate Approximation by Single Hidden Layer Feedforward Neural Networks. Results in Mathematics 75:109, pp. 1-35 (2020).
• S. Goebbels, R. Pohle-Fröhlich: RANSAC for Aligned Planes with Application to Roof Plane Detection in Point Clouds. International Conference on Computer Graphics Theory and Applications (GRAPP), pp. 193-200 (2020).
• R. Pohle-Fröhlich, C. Dalitz, C. Richter, T. Hahnen, B. Stäudle, K. Albracht: Estimation of muscle fascicle orientation in ultrasonic images. International Conference on Computer Vision Theory and Applications (VISAPP), pp. 79-86 (2020).
• S. Goebbels: A counterexample regarding "New study on neural networks: the essential order of approximation". Neural Networks 123, pp. 234-235, 2020
• C. Neumann, K.D. Tönnies, R. Pohle-Fröhlich: "Deep similarity learning using a Siamese ResNet trained on similarity labels from disparity maps of cerebral MRA MIP pairs." Proc. SPIE 11313, Medical Imaging 2020: Image Processing, p. 113132N (2020).
• P.J. Owen, G. Armbrecht, M. Bansmann, J. Zange, R. Pohle-Fröhlich, D. Felsenberg, D.L. Belavý: "Whey protein supplementation with vibration exercise ameliorates lumbar paraspinal muscle atrophy in prolonged bed rest." Journal of Applied Physiology, 128(6), pp. 1568-1578 (2020).
• C. Dalitz, J. Wilberg, M. Jeltsch: The gradient product transform: an image filter for symmetry detection. Image Processing On Line, 9 pp. 413-431, 2019
• S. Goebbels, R. Pohle-Fröhlich: Techniques for improved CityGML models. Graphical Models Journal 106, pp. 101044:1-11, 2019
• S. Goebbels, R. Pohle-Fröhlich: Beautification of City Models based on Mixed Integer Linear Programming. Proceedings Operations Research 2018, pp. 119-125, 2019.
• S. Goebbels: Convergence rates for Fourier partial sums of polygons and periodic splines. Journal of Fourier Analysis and Applications 25(4), pp. 1902-1920, 2019.
• T. Bolten, R. Pohle-Fröhlich, K. D. Tönnies: Application of Hierarchical Clustering for Object Tracking with a Dynamic Vision Sensor. International Conference on Computational Science (ICCS), pp. 164-176, 2019.
• S. Goebbels, R. Pohle-Fröhlich, P. Pricken: Iterative Closest Point Algorithm for Accurate Registration of Coarsely Registered Point Clouds with CityGML models, ISPRS Ann. Photogramm. Remote Sens. and Spatial Inf. Sci, Volume IV-2/W5, pp. 201-208, 2019.
• S. Hensel, S. Goebbels, M. Kada: Facade Reconstruction for Textured LoD2 CityGML models based on Deep Learning and Mixed Integer Linear Programming, ISPRS Ann. Photogramm. Remote Sens. and Spatial Inf. Sci, Volume IV-2/W5, pp. 37-44, 2019.
• R. Pohle-Fröhlich, A. Bohm, P. Ueberholz, M. Korb, S. Goebbels: Roof Segmentation based on Deep Neural Networks, International Conference on Computer Vision Theory and Applications (VISAPP), pp. 326-333, 2019.
• C. Dalitz, J. Wilberg, L. Aymans: TriplClust: An algorithm for curve detection in 3D point clouds. Image Processing On Line 9, pp. 26-46, 2019.
• C. Dalitz, Y. Ayyad, J. Wilberg, L. Aymans, D. Bazin, W. Mittig: Automatic trajectory recognition in Active Target Time Projection Chambers data by means of hierarchical clustering. Computer Physics Communications 235, pp. 159-168, 2019.
• C. Degen, C. Domnik, A. Kürten, M. Meuleners, M. Notz, R. Pohle-Fröhlich, E. Naroska: Driver assistance system for pedelecs. 20th International Radar Symposium (IRS), pp. 1-8 (2019).
• C. Neumann, K. Tönnies, R. Pohle-Fröhlich: AngioUnet - A Convolutional Neural Network for Vessel Segmentation in Cerebral DSA Series. International Conference on Computer Vision Theory and Applications (VISAPP), pp. 331-338, 2018.
• S. Goebbels, R. Pohle-Fröhlich: Line-based Registration of Photogrammetric Point Clouds with 3D City Models by Means of Mixed Integer Linear Programming. International Conference on Computer Vision Theory and Applications (VISAPP), pp. 299-306, 2018.
• S. Goebbels, R. Pohle-Fröhlich, P. Kant: A Linear Program for Matching Photogrammetric Point Clouds with CityGML Building Models. Proceedings Operations Research 2017, pp. 129-134, 2018.
• H.G. Hirsch, M. Gref: On the influence of modifying magnitude and phase spectrum to enhance noisy speech signals. Proc. Interspeech 2017, pp. 1978-1982, 2017.
• C. Dalitz, T. Schramke, M. Jeltsch: Iterative Hough Transform for Line Detection in 3D Point Clouds. Image Processing On Line 7, pp. 184-196, 2017.
• T. Koy, B. Ganse, J. Zange, J. Rittweger, R. Pohle-Fröhlich, P. Fings-Meuthen, D.L. Belavý: T2-relaxation time increases in lumbar intervertebral discs after 21d head-down tilt bed-rest. Journal of musculoskeletal & neuronal interactions 17(3), pp. 140-145 (2017).
• S. Goebbels, R. Pohle-Fröhlich: Quality enhancement techniques for building models derived from sparse point clouds. International Conference on Computer Graphics Theory and Applications (GRAPP), pp. 93-104, 2017.
• S.J. Goebbels, R. Pohle-Fröhlich, J. Rethmann: Planarization of CityGML models using a linear program. Proceedings Operations Research 2016 (OR2016), pp. 591-597, 2017.
• S.J. Goebbels, F. Gurski, J. Rethmann, E. Yilmaz: Change-making problems revisited: a parameterized point of view. Journal of Combinatorial Optimization 34(4), pp. 1218-1236, 2017.
• C. Dalitz, K.E. Bednarek: Sentiment Lexica from Paired Comparisons. International Conference on Data Mining Workshops (ICDMW), pp. 924-930, 2016.
• S. Goebbels, R. Pohle-Fröhlich: Roof Reconstruction from Airborne Laser Scanning Data Based on Image Processing Methods. ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., III-3, pp. 407-414, 2016.
• M. Jeltsch, C. Dalitz, R. Pohle-Fröhlich: Hough parameter space regularization for line detection in 3D . International Conference on Computer Vision Theory and Applications (VISAPP), pp. 345-352, 2016.
• B. Ganse, J. Zange, T. Weber, R. Pohle-Fröhlich, B. W. Johannes, M. Hackenbroch, J.Rittweger, P. Eysel, T. Koy: Target marker: muscular forces affect the glycosaminoglycan content of joint cartilage. Acta Orthopaedica 86(3), pp. 388-392, 2015.
• C. Dalitz, R. Pohle-Fröhlich, T. Michalk: Point spread functions and deconvolution of ultrasound images. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 62, no. 3, pp. 531-544, 2015.
• S. Goebbels, R. Pohle-Fröhlich: Context-Sensitive Filtering of Terrain Data based on Multi Scale Analysis. International Conference on Computer Graphics Theory and Applications (GRAPP), pp. 106-113, 2015.
• C. Dalitz, R. Pohle-Fröhlich, F. Schmitt, M. Jeltsch: The Gradient Product Transform for Symmetry Detection and Blood Vessel Extraction. International Conference on Computer Vision Theory and Applications (VISAPP), pp. 177-184, 2015.
• T. Koy, J. Zange, J. Rittweger, R. Pohle-Fröhlich, M. Hackenbroch, P. Eysel, B. Ganse: Assessment of Lumbar Intervertebral Disc Glycosaminoglycan Content by Gadolinium-Enhanced MRI before and after 21-Days of Head-Down-Tilt Bedrest. PLoS ONE 9(11): e112104, 2014.
• H.-G. Hirsch, F. Kremer: Recognition of Noisy Speech by Starting the Likelihood Calculation at Voiced Segments, 11th ITG Symposium Speech Communication, Erlangen, 2014.
• H.G. Hirsch: Extraction of robust features by combining noise reduction and FDLP for the recognition of noisy speech signals in hands-free fashion , The REVERB Workshop (held in conjunction with ICASSP 2014 and HSCMA 2014), Florence, 2014.
• B. Robertson, C. Dalitz, F. Schmitt: Automated Page Layout Simplification of Patrologia Graeca. First International Conference on Digital Access to Textual Cultural Heritage (DATeCH), pp. 167-172, 2014.
• R. Pohle-Fröhlich, D. Stalder: 3D symmetry transformation for vessel segmentation in MRI-TOF data. Image Processing for Medicine 2014, Informatik aktuell, pp. 144-149, Springer-Verlag, 2014.
• H.-G. Hirsch, A. Kitzig, F. Kremer: Detection of voiced speech segments for robust speech recognition, 43rd Annual Conference of the German Informatics Society (GI), pp. 2902-2916, Koblenz, 2013.
• H.-G. Hirsch: Pitch synchronous spectral analysis for a pitch dependet recognition of voiced phonemes - PISAR, 14th Annual Conference of the Interantional Speech Communication Association, F-Lyon, 2013.
• C. Dalitz, C. Brandt, S. Goebbels, D. Kolanus: Fourier Descriptors for Broken Shapes. EURASIP Journal on Advances in Signal Processing 2013:161, 2013.
• C. Dalitz, R. Pohle-Fröhlich, T. Bolten: Detection of symmetry points in images. International Conference on Computer Vision Theory and Applications (VISAPP), pp. 577-585, 2013.
• R. Pohle-Fröhlich, C. Brandt, T. Koy: Segmentation of lumbar intervertebral discs in MRI image data. Image Processing for Medicine 2013, Informatik aktuell, pp. 63-68, Springer-Verlag, 2013.
• C. Dalitz, T. Bolten, O. Christen: Color Visualization of 2D Segmentations. International Conference on Information Visualization Theory and Applications (IVAPP), pp. 567-572, 2013.
• S. Goebbels: On the sharpness of an error bound for a Galerkin method to solve parabolic differential equations. J. Math. Anal. Appl., 2013
• S. Goebbels: A sharp error estimate for numerical Fourier transform of band-limited functions based on windowed samples. Z. Anal. Appl. 32, pp. 371-387, 2013.
• S. Goebbels: A sharp error bound in terms of an averaged modulus of smoothness for Fourier Lagrangian coefficients.Publications Results Math. 63, pp. 311-327, 2013.
• H.G. Hirsch, A. Ringl, A. Kitzig: Combining Different Recognition Schemes by Analyzing the Noise Condition, 10th ITG Symposium Speech Communication, Braunschweig, 2012.
• H.G. Hirsch, S. Ganapathy, H. Hermansky: Comparison of Different Approaches for Speech Recognition in Hands-free Mode, 10th ITG Symposium Speech Communication, Braunschweig, 2012.
• H.G. Hirsch, A. Kitzig: Robust Speech Recognition by Combining a Robust Feature Extraction with an Adaptation of HMMs. 9th ITG Speech Communication Conference, 2010.
• H.G. Hirsch, A. Kitzig, K. Linhard: Simulation of the Hands-free Speech Input to Speech Recognition Systems by Measuring the Room Impulse Responses. 9th ITG Speech Communication Conference, 2010.
• C. Dalitz, C. Pranzas: German Lute Tablature Recognition. International Conference on Document Analysis and Recognition (ICDAR), pp. 371-375, 2009.
• H.G. Hirsch, A. Kitzig: Improving the Robustness with Multiple Sets of HMMs. 10th Annual Conference of the International Speech Communication Association (Interspeech'09), pp. 564-567, 2009.
• H.G. Hirsch, H. Finster: A New Approach for the Adaptation of HMMs to Reverberation and Background Noise. Speech Communication, vol. 50, no. 3, pp. 244-263, 2008.
• H.G. Hirsch, A. Kitzig: Visualization of the spectral features contained in an HMM. 9th ITG Speech Communication Conference, 2008.
• H.G. Hirsch, P. Pogscheba: Improving speech recognition in hands-free speech by combining robust feature extraction and reference pattern adaptation. ITG Speech Communication Symposium, 2008
• C. Dalitz, M. Droettboom, B. Pranzas, I. Fujinaga: A Comparative Study of Staff Removal Algorithms. IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 30, no. 5, pp. 753-766, 2008.
• C. Dalitz, G.K. Michalakis, C. Pranzas: Optical Recognition of Psaltic Byzantine Chant Notation. International Journal of Document Analysis and Recognition, vol. 11, no. 3, pp. 143-158, 2008.
• H.G. Hirsch, H. Finster: The Simulation of Realistic Acoustic Input Scenarios for Speech Recognition Systems. European Conference on Speech Communication and Technology (Interspeech'05), pp. 2697-2700, 2005.
• S.J. Goebbels: On the Riemann integrability of the n-th local modulus of continuity. Functiones et Approximatio 34, pp. 7-17, 2005
• C. Dalitz and T. Karsten: Using the Gamera Framework for Building a Lute Tablature Recognition System. International Conference on Music Information Retrieval (ISMIR), pp. 478-481, 2005.

• S. Goebbels: Training of ReLU Activated Multilayerd Neural Networks with Mixed Integer Linear Programs. Technical Report No. 2021-01, Hochschule Niederrhein, Faculty of Electrical Engineering and Computer Science (2021).
• C. Dalitz, J. Wilberg, K.E. Bednarek: Paired Comparison Sentiment Scores. Technical Report No. 2017-03, Hochschule Niederrhein, Faculty of Electrical Engineering and Computer Science (2017).
• S. Goebbels, S. Ritter: Understanding and applying mathematics. Spektrum, Heidelberg, third edition, Springer Spektrum, Heidelberg, 2018.
• C. Dalitz: Construction methods for confidence intervals. Technical Report No. 2017-01, The Hochschule Niederrhein, Faculty of Electrical Engineering and Computer Science (2017).
• Also available in English: Construction of Confidence Intervals.
• C. Dalitz: Estimating Wealth Distribution: Top Tail and Inequality. Technical Report No. 2016-01, Hochschule Niederrhein, Faculty of Electrical Engineering and Computer Science (2016).
• S. Goebbels: An Inequality for Negative Norms with Application to Errors of Finite Element Methods. Technical Report No. 2015-02, Hochschule Niederrhein, Faculty of Electrical Engineering and Computer Science (2015).
• H.G. Hirsch, F. Schmitt: "Discriminant analysis for discriminative detection of easily confusable classes", 41st Annual Conference of the German Acoustics Society (DAGA), Nuremberg (2015).
• S. Goebbels, R. Pohle-Fröhlich: Automatic generation of a 3D city model of Krefeld from different data sources. Technical Report No. 2015-01, Hochschule Niederrhein, Faculty of Electrical Engineering and Computer Science (2015).
• H.-G. Hirsch, F. Kremer: Robust speech recognition starting from voiced segments with high SNR, 40th Annual Conference of the German Acoustics Society (DAGA), Oldenburg (2014).
• H.-G. Hirsch: Comparison of approaches with robust feature extraction and HMM adaptation techniques, 40th Annual Meeting of the German Acoustical Society (DAGA), Oldenburg (2014).
• S. Goebbels: Construction of some window functions for the Fourier transform. Technical Report No. 2014-03, Hochschule Niederrhein, Faculty of Electrical Engineering and Computer Science (2014).
• S. Goebbels: Mathematics of the z-transform. Technical Report No. 2014-02, Hochschule Niederrhein, Faculty of Electrical Engineering and Computer Science (2014).
• C. Dalitz: Soft thresholding for visual image enhancement. Technical Report No. 2014-01, Hochschule Niederrhein, Faculty of Electrical Engineering and Computer Science (2014).
• S. Goebbels, J. Rethmann: Mathematics for computer scientists. Springer Vieweg, Heidelberg, 2014,
• A. Kitzig, H.-G. Hirsch, F. Kremer: Detection of noisy speech as step towards a new robust recognition scheme, 39th Annual Meeting of the German Acoustics Society (DAGA), I-Meran (2013).
• C. Dalitz, T. Crawford: From Facsimile to Content Based retrieval: the Electronic Corpus of Lute Music. Phoibos - Journal of Plucked Music 2/2013, pp. 167-185, 2013.
• S. Goebbels, S. Ritter: Understanding and applying mathematics. Springer Spektrum, Heidelberg, 2011, 2013
• C. Dalitz: Reject options and confidence measures for kNN classifiers. In C. Dalitz (Ed.): "Document Image Analysis with the Gamera Framework." Publication Series of the Faculty of Electrical Engineering and Computer Science, Hochschule Niederrhein, vol. 8, pp. 16-38, Shaker Verlag, 2009.
• C. Dalitz: Kd-Trees for Document Layout Analysis. In C. Dalitz (Ed.): "Document Image Analysis with the Gamera Framework." Publication Series of the Faculty of Electrical Engineering and Computer Science, Hochschule Niederrhein, vol. 8, pp. 39-52, Shaker Verlag, 2009.
• C. Dalitz, R. Baston: Optical Character Recognition with the Gamera Framework. In C. Dalitz (Ed.): "Document Image Analysis with the Gamera Framework." Publication Series of the Faculty of Electrical Engineering and Computer Science, Hochschule Niederrhein, vol. 8, pp. 53-65, Shaker Verlag, 2009.
• H.G. Hirsch: Automatic Speech Recognition in Adverse Acoustic Conditions. In R. Martin, U. Heute, C. Antweiler (Ed.): Advances in Digital Speech Transmission. John Wiley & Sons, pp. 461-496, 2008.
• T. Lambertz, R. Pohle, I. Ernst, P.S. Lücking: Determining the correlation between postradiogenic changes in MRI and dose values of the irradiation schedule in extracranial stereotactic radiotherapy. Image Processing for Medicine, Munich, pp. 358-362, 2007.