M. Winzker - Academia.edu (original) (raw)
Papers by M. Winzker
2018 IEEE World Engineering Education Conference (EDUNINE), 2018
Guest lecturers from a different country can be very beneficial as students get a broader view on... more Guest lecturers from a different country can be very beneficial as students get a broader view on a subject and learn about applications not common in their home country. However, the cost and time required for traveling is a drawback. This contribution describes the exchange of teaching content between Germany and Argentina based on an e-learning approach. Short lectures are recorded on video and supplement the teaching of the local lecturer. The teaching content addresses digital logic design with FPGAs and is targeted to advanced students. The video lectures introduce an image processing algorithm for driver assistance in modern cars, which is a motivating application for students. The remote-lab allows the students to perform lab exercises with real hardware. The topic of lane detection for driver assistance is a specific application. The video lectures correspond to 1 or 2 weeks of teaching and can be used as a supplement for an existing course on digital design, FPGAs or signal processing.
Optical distortions can occur for image acquisition as well as for image presentation. Sources fo... more Optical distortions can occur for image acquisition as well as for image presentation. Sources for these distortions are presented and their characteristics are analyzed. Based on the extracted characteristics a VLSI architecture for electronic correction of optical distortions is proposed.
Journal of the Society for Information Display, 2003
Journal on Interactive Systems, 2011
This paper presents the newly founded Institute of Visual Computing at the Bonn-Rhine-Sieg Univer... more This paper presents the newly founded Institute of Visual Computing at the Bonn-Rhine-Sieg University of Applied Sciences in Sankt Augustin, Germany. The research focuses as well as an overview of current projects are going to be part of this presentation.
Abstract—This paper presents the soon to be founded Institute of
2015 Ieee Global Engineering Education Conference, Mar 1, 2015
ABSTRACT To meet the demands for education, engineering curricula intend go beyond teaching techn... more ABSTRACT To meet the demands for education, engineering curricula intend go beyond teaching technical knowledge. In addition to classic modules, our department considers sustainability subjects such as energy awareness. This paper describes the implementation of a teaching plan for energy-efficient design in hands-on labs and visualizes the possibilities to bring the methods of reducing power consumption closer to students and observe the size of the effects.
Technical knowledge should not be limited to computer scientists and engineers. Also people outsi... more Technical knowledge should not be limited to computer scientists and engineers. Also people outside these professions should have a basic understanding of technical concepts, trends and challenges. This paper describes a module of electronics for technical journalists and shows that electronics can be successfully communicated finding a balance between simplification and accuracy.
Sid Symposium Digest of Technical Papers, 2002
Optical distortions, resulting from lens characteristics, non- aligned projection and variations ... more Optical distortions, resulting from lens characteristics, non- aligned projection and variations in the light source, decrease the quality of projection displays. Knowledge of the sources and characteristics of these distortions allows their electronic correc- tion. The integration of electronic image correction in the display controller IC allows high quality projection without additional components. 1. Introduction For image presentation with a projection system, the electronic image information is presented on a digital display device, e.g. an LCD or DMD. A lens system is used to project the image onto a screen. For image acquisition with an electronic camera a scene in the real world is projected by a lens system on an image sensor and transferred to an electronic signal. In the projector as well as the camera an optical system and an electronic system work closely together. Consequently, during the design of the electronic system the characteristics of the optical system and vi...
ABSTRACT VLSI architectures of filterbanks necessary for an HDTV subband codec have been investig... more ABSTRACT VLSI architectures of filterbanks necessary for an HDTV subband codec have been investigated. Different techniques have been combined in order to achieve a compact realization. The application of special QMF structures results in a further reduction of hardware expense. High clocking rates are handled using two dimensional polyphase filterbanks in combination with pipelining and parallel processing. An architecture suitable for one-chip implementation of a 10 x 14 tap QM filterbank has been developed. Les architectures VLSI de bancs de filtres utilisés pour un codeur-décodeur TVHD en sous-bandes ont été étudiées. Différentes techniques ont été combinées pour aboutir à une réalisation efficace en termes de surface de silicium. Ľutilisation de structures spéciales de filtres miroirs en quadrature permet de réduire encore la complexité matérielle. Un fonctionnement à des fréquences ďhorloge élevées est possible grâce à ľutilisation de bancs de filtres polyphasés et ďun traitement parallèle et pipeliné. Une architecture adaptée à la mise en œuvre ďun banc de filtres à 10 x 14 coefficients sur un seul circuit a été développée. Key wordsHigh definition television-Image coding-Subband decomposition-Codec-VLSI circuit-Quadrature mirror filter-Polyphase circuit Mots clés:Télévision haute définition-Codage image-Décomposition sous-bande-Codec-Circuits VLSI-Filtre miroir quadrature-Circuit polyphasé
2011 IEEE International Conference on Signal and Image Processing Applications (ICSIPA), 2011
Rendering of virtual scenes is an application that still demands higher computing power for more ... more Rendering of virtual scenes is an application that still demands higher computing power for more complex and more realistic scenes. In addition to existing parallel processing inside a graphics processing unit, this paper investigates a further level of parallelization. A combiner based on an FPGA (field programmable gate array) allows to merge the graphics output of several independent computers. The
2018 IEEE World Engineering Education Conference (EDUNINE), 2018
Guest lecturers from a different country can be very beneficial as students get a broader view on... more Guest lecturers from a different country can be very beneficial as students get a broader view on a subject and learn about applications not common in their home country. However, the cost and time required for traveling is a drawback. This contribution describes the exchange of teaching content between Germany and Argentina based on an e-learning approach. Short lectures are recorded on video and supplement the teaching of the local lecturer. The teaching content addresses digital logic design with FPGAs and is targeted to advanced students. The video lectures introduce an image processing algorithm for driver assistance in modern cars, which is a motivating application for students. The remote-lab allows the students to perform lab exercises with real hardware. The topic of lane detection for driver assistance is a specific application. The video lectures correspond to 1 or 2 weeks of teaching and can be used as a supplement for an existing course on digital design, FPGAs or signal processing.
Optical distortions can occur for image acquisition as well as for image presentation. Sources fo... more Optical distortions can occur for image acquisition as well as for image presentation. Sources for these distortions are presented and their characteristics are analyzed. Based on the extracted characteristics a VLSI architecture for electronic correction of optical distortions is proposed.
Journal of the Society for Information Display, 2003
Journal on Interactive Systems, 2011
This paper presents the newly founded Institute of Visual Computing at the Bonn-Rhine-Sieg Univer... more This paper presents the newly founded Institute of Visual Computing at the Bonn-Rhine-Sieg University of Applied Sciences in Sankt Augustin, Germany. The research focuses as well as an overview of current projects are going to be part of this presentation.
Abstract—This paper presents the soon to be founded Institute of
2015 Ieee Global Engineering Education Conference, Mar 1, 2015
ABSTRACT To meet the demands for education, engineering curricula intend go beyond teaching techn... more ABSTRACT To meet the demands for education, engineering curricula intend go beyond teaching technical knowledge. In addition to classic modules, our department considers sustainability subjects such as energy awareness. This paper describes the implementation of a teaching plan for energy-efficient design in hands-on labs and visualizes the possibilities to bring the methods of reducing power consumption closer to students and observe the size of the effects.
Technical knowledge should not be limited to computer scientists and engineers. Also people outsi... more Technical knowledge should not be limited to computer scientists and engineers. Also people outside these professions should have a basic understanding of technical concepts, trends and challenges. This paper describes a module of electronics for technical journalists and shows that electronics can be successfully communicated finding a balance between simplification and accuracy.
Sid Symposium Digest of Technical Papers, 2002
Optical distortions, resulting from lens characteristics, non- aligned projection and variations ... more Optical distortions, resulting from lens characteristics, non- aligned projection and variations in the light source, decrease the quality of projection displays. Knowledge of the sources and characteristics of these distortions allows their electronic correc- tion. The integration of electronic image correction in the display controller IC allows high quality projection without additional components. 1. Introduction For image presentation with a projection system, the electronic image information is presented on a digital display device, e.g. an LCD or DMD. A lens system is used to project the image onto a screen. For image acquisition with an electronic camera a scene in the real world is projected by a lens system on an image sensor and transferred to an electronic signal. In the projector as well as the camera an optical system and an electronic system work closely together. Consequently, during the design of the electronic system the characteristics of the optical system and vi...
ABSTRACT VLSI architectures of filterbanks necessary for an HDTV subband codec have been investig... more ABSTRACT VLSI architectures of filterbanks necessary for an HDTV subband codec have been investigated. Different techniques have been combined in order to achieve a compact realization. The application of special QMF structures results in a further reduction of hardware expense. High clocking rates are handled using two dimensional polyphase filterbanks in combination with pipelining and parallel processing. An architecture suitable for one-chip implementation of a 10 x 14 tap QM filterbank has been developed. Les architectures VLSI de bancs de filtres utilisés pour un codeur-décodeur TVHD en sous-bandes ont été étudiées. Différentes techniques ont été combinées pour aboutir à une réalisation efficace en termes de surface de silicium. Ľutilisation de structures spéciales de filtres miroirs en quadrature permet de réduire encore la complexité matérielle. Un fonctionnement à des fréquences ďhorloge élevées est possible grâce à ľutilisation de bancs de filtres polyphasés et ďun traitement parallèle et pipeliné. Une architecture adaptée à la mise en œuvre ďun banc de filtres à 10 x 14 coefficients sur un seul circuit a été développée. Key wordsHigh definition television-Image coding-Subband decomposition-Codec-VLSI circuit-Quadrature mirror filter-Polyphase circuit Mots clés:Télévision haute définition-Codage image-Décomposition sous-bande-Codec-Circuits VLSI-Filtre miroir quadrature-Circuit polyphasé
2011 IEEE International Conference on Signal and Image Processing Applications (ICSIPA), 2011
Rendering of virtual scenes is an application that still demands higher computing power for more ... more Rendering of virtual scenes is an application that still demands higher computing power for more complex and more realistic scenes. In addition to existing parallel processing inside a graphics processing unit, this paper investigates a further level of parallelization. A combiner based on an FPGA (field programmable gate array) allows to merge the graphics output of several independent computers. The