Search for dissertations about: "audio and video"

Showing result 1 - 5 of 94 swedish dissertations containing the words audio and video.

  2. 1. On Enhancement and Quality Assessment of Audio and Video in Communication Systems

    Author : Andreas Rossholm; Blekinge Tekniska Högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; QoE; video quality assessment; video quality metric; multi-linear regression; artificial neural network; support vector machine; quality predictor; machine learning; temporal scaling; spatial scaling; video compression; deblocking filter; noise cancelling; synchronization; audio delay; video delay; GSM interference signal; noise cancellation; notch filtering;

    Abstract : The use of audio and video communication has increased exponentially over the last decade and has gone from speech over GSM to HD resolution video conference between continents on mobile devices. As the use becomes more widespread the interest in delivering high quality media increases even on devices with limited resources. READ MORE

  4. 2. Monsters I Love : On Multivocal Arts

    Author : Alex Nowitz; Rolf Hughes; Sten Sandell; Åse Tone; Stockholms konstnärliga högskola; []
    Keywords : HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; Music; acousmatic and disembodied voice; æsthetics of uncertainty and in-between; composer-performer; contemporary vocal performance art; custom musical instrument DIY ; digital musical instrument DMI ; electronic and electroacoustic music; expanding the field of vocal performance art; extended vocal techniques; extending the voice; gesture-controlled live electronics; improvisation and real-time composition; inclusive vocal performance practises; interactive sound and music; multidirectional listening; multivocality; multivocal voice; new vocality; sampling practises for vocal and musical improvisation; schizophonic practices; sensor-based and computer-based technology; singer-composer; sound art; sound technology; STEIM; strophonion; vocal materiality and liminality; vocal personas; vocal sound dance; wireless technology; Performativa och mediala praktiker; Performative and media based practices; Degree of Doctor of Philosophy in Fine Arts in Performative and Media Based Practices with Specialisation in Opera; Degree of Doctor of Philosophy in Fine Arts in Performative and Media Based Practices with Specialisation in Opera;

    Abstract : Proposing a ‘multivocal practice’ in the vocal arts, this exposition (documented artistic research project) embodies an inclusive approach to four core categories for the contemporary performance voice: the singing, speaking, extended and disembodied voice. The culmination of a four-year PhD project in the Performative and mediated practices, with specializations in choreography/film and media/opera /performing arts, it documents artistic research sub-projects through the presentation of multimedia material, interweaving performance recordings with reflection and informative threads. READ MORE

  5. 3. Recognition and Evaluation by Video Synthesis Methods and Symmetry Features

    Author : Dereje Teferi Lemma; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Biometrics; eye detection; video synthesis; liveness detection; camera calibration; damascening; Generalized Structure Tensor; symmetry codes;

    Abstract : Biometrics is being increasingly utilized for person authentication. It requires little or no efforts from the user as compared to traditional non-biometric systems where the user has to memorize PIN codes and passwords or carry pass cards and keys that can be easily forgotten or lost. READ MORE

  6. 4. On the Enhancement of Audio and Video in Mobile Equipment

    Author : Andreas Rossholm; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Audio enhancement; video enhancement; active noise cancellation; video coding; mobile equipment;

    Abstract : Use of mobile equipment has increased exponentially over the last decade. As use becomes more widespread so too does the demand for new functionalities. The limited memory and computational power of many mobile devices has proven to be a challenge resulting in many innovative solutions and a number of new standards. READ MORE

  7. 5. Parameter and State Estimation with Information-rich Signals

    Author : Magnus Evestedt; Alexander Medvedev; Fredrik Gustafsson; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; information-rich signals; audio; video; acoustic echo cancellation; steel production; LD-converter; Kalman filter; covariance windup; recursive parameter estimation; Automatic control; Reglerteknik;

    Abstract : The complexity of industrial systems and the mathematical models to describe them increases. In many cases, point sensors are no longer sufficient to provide controllers and monitoring instruments with the information necessary for operation. The need for other types of information, such as audio and video, has grown. READ MORE