Publikationen


Suche nach „[Thesis]“ hat 56 Publikationen gefunden
Suchergebnis als PDF
    TC Freyung

    Hochschulschrift

    Patrick Reidelstürz

    Forstliches Anwendungspotential der terrestrisch-analytischen Stereophotogrammetrie

    1997

    NachhaltigAngewandte Naturwissenschaften und WirtschaftsingenieurwesenTC Teisnach Sensorik

    Hochschulschrift

    Maria Kufner

    Fabrication and characterization of micro-lenses with high numerical apertures in PMMA

    Dissertation

    1993

    NachhaltigAngewandte Naturwissenschaften und WirtschaftsingenieurwesenTAZ Spiegelau

    Hochschulschrift

    Günther Ruhl

    XPS-Studien oberflächenchemischer Prozesse beim Plasmaätzen von (Mn,Zn)Ferriten und der MOCVD von TiNxCy

    1993

    Bauingenieurwesen und Umwelttechnik

    Hochschulschrift

    Hans Bulicek

    Zur Berechnung des ebenen Spannungs- und Verzerrungszustandes der Schubzone von schubbewehrten Stegen profilierter Stahlbeton- und Spannbetonträger im Grenzzustand der Schubtragfähigkeit

    1993

    Elektrotechnik und Medientechnik

    Hochschulschrift

    Gerhard Krump

    Beschreibung des akustischen Nachtones mit Hilfe von Mithörschwellenmustern

    1993

    TC Freyung

    Hochschulschrift

    Patrick Reidelstürz

    Die Douglasienkrone im Color-Infrarot Luftbild

    Erarbeitung eines Interpretationsschlüssels am Beispiel des Stadtwaldes Freiburg

    1992

    Angewandte Wirtschaftswissenschaften

    Hochschulschrift

    Heribert Popp

    Hybride wissensbasierte Systeme zur Datenanalyse und Eigenschaftsvorausberechnung physikalisch-chemischer Systeme, dargestellt an Elektrolytlösungen

    1992

    Angewandte Wirtschaftswissenschaften

    Hochschulschrift

    Josef Schneeberger

    Plan Generation by Linear Deduction

    1992

    Maschinenbau und Mechatronik

    Hochschulschrift

    Franz Bergbauer

    Verbesserung von Kraftstoffverbrauch und Betriebsverhalten von Verbrennungsmotoren durch Turbocompounding

    1989

    Angewandte Wirtschaftswissenschaften

    Hochschulschrift

    Heribert Popp

    Mensch- Mikrocomputer Kommunikationssystem - Management Expertensystem in der chemischen Industrie auf der Basis eines universellen Daten- und Prozeduralmodells auf einem Mikrocomputerverbundsystem

    1984

    Maschinenbau und Mechatronik

    Hochschulschrift

    Franz Bergbauer

    Berechnung der gasdynamischen Vorgänge im Auslasssystem eines Dieselmotors

    1983

    Angewandte Naturwissenschaften und Wirtschaftsingenieurwesen

    Hochschulschrift

    Richard Hämmerle

    Ein Beitrag zur Ortung von leitfähigen oder ferromagnetischen Kugeln

    1981

    Angewandte Naturwissenschaften und Wirtschaftsingenieurwesen

    Hochschulschrift

    Richard Hämmerle

    Breitbandantennenverstärker im Dezimeterwellenbereich

    1977

    DigitalAngewandte Informatik

    Hochschulschrift

    Marcus Barkowsky

    Subjective and Objective Video Quality Measurement in Low-Bitrate Multimedia Scenarios

    ISBN: 978-3-86853-142-8

    Abstract anzeigen

    In recent years, many distribution channels for low-bitrate video transmissions were setup. The parameter settings for the encoder, the transmission channel, the decoder and the playback device are manifold. In order to maintain customer satisfaction, it is necessary to carefully select and continuously tune those parameters and to monitor the resulting video quality at the receiver. This thesis considers the quality measurement by a human observer and by an automated algorithm. In the first part of the thesis, several subjective tests are performed in order to draw conclusions about the choice of transmission parameters. The experience gained from those experiments led to three psychophysical experiments that focus on isolated aspects of the video quality in lossless or lossy low-bitrate transmissions. Three distinct algorithms are deduced from the subjective experiments which deal with the temporal aspects. First, the visibility of artifacts is modeled when the viewer only has a short period of time for the examination. Second, the influence of transmission outages is modeled: The video playback may pause and content may be skipped if retransmission is not possible. Third, the visual degradation introduced by a reduction of the frame rate is modeled. The second part of the thesis is dedicated to the objective measurement. It is assumed that the reference video sequence is available for comparison with the degraded sequence. Because the performance of the automated measurement depends strongly on the correct alignment of the degraded signal to the reference signal, various algorithms are reviewed, enhanced, and compared that locate the corresponding reference frame for a given degraded frame. So far, many algorithms have been published that reliably predict the visual quality of still images or temporally undistorted video sequences. In this thesis, a new framework is presented that allows to evaluate the performance of these algorithms for temporally distorted video transmissions. The processing steps and the signal representations follow the reasoning of a human observer in a subjective experiment as observed in the first part of the thesis. The improvements that can be achieved with the newly proposed framework are demonstrated by comparing the objective scores with the subjective results of the comprehensive Multimedia Phase I database of the Video Quality Experts Group.

    DigitalAngewandte Informatik

    Hochschulschrift

    Gökçe Aydos

    Parity-based Error Detection with Recomputation for Fault-tolerant Spaceborne Computing

    Abstract anzeigen

    In radiation environment (e.g., space, nuclear reactor), electronics can fail due to bitflips in the flipflops of integrated circuits. A common solution is to triplicate the flipflops and connect their outputs to a voter. If one of the three bits is flipped, then the voter outputs the majority value and tolerates the error. This method is called triple modular redundancya (TMR). TMR can cause about 300% area redundancy. An alternative way is error detection with on-demand recomputation, where the recomputation is done by repeating the failed processing request to the processing circuit. The computation is done in consecutive transactions, which we call transaction-based processing. We implemented and evaluated the aforementioned alternative approach using parity checking on the Microsemi ProASIC3 FPGA, which is often used in space applications. The results show that parity-based error detection with our system recovery approach can save up to 54% of the area overhead that would be caused by the TMR, and achieve in most circuits slightly better timing results than TMR on ProASIC3. This area saving can be the key for fitting the application to a space-constrained chip.

    Angewandte Wirtschaftswissenschaften

    Hochschulschrift

    Josef Schneeberger

    Ein Expertensystem zur Generierung flächenoptimaler VLSI-Layouts