Fajardo Portillo Jose Oscar

Fajardo Portillo, Jose Oscar

Personal information

Fajardo Portillo, Jose Oscar

Address: Alda. de Urquijo s/n. C.P.: 48013. Bilbao
Email: joseoscar.fajardo@ehu.es
Telephone: +34 94 601 7361

 

Academic degrees

University Degree

Career: Engineering in Telecommunications
Intensificación: Telematics
Center: University of The Basque Country
Date of achievement: 2003

Doctorate

Program title: Tecnologías de la Información y Comunicaciones en Redes Móviles
DEA date of achievement: 2005
Thesis title: Adaptación de los mecanismos de provisión de calidad de servicio a las preferencias de los usuarios (Adaptation of QoS provisioning mechanisms to user requirements)
Date of achievement: (In progress)

Conference Papers

Impact of end devices on subjective video quality assessment for QCIF video sequences

Authors:
Asiya Khan, Lingfen Sun, Jose Oscar Fajardo, Ianire Taboada, Fidel Liberal, Emmanuel Ifeachor
Year:
2011
Journal:
Third International Workshop on Quality of Multimedia Experience (QoMEX2011). Mechelen, Belgium. September 7-9
Description:

<span lang="en">The aim of this paper is to assess the impact of devices on Quality of Experience (QoE) of the user. As the types of video content viewed over handheld devices increases e.g. streaming video, it is important to evaluate the impact of the end device on video quality assessment. In this paper subjective tests were conducted with QCIF (176x144) videos over two devices 6 Personal Computer (PC) and mobile handset with 90 test conditions. The dataset was generated with a combination of parameters associated with the access network (block error rates and mean burst lengths), H.264 codec related parameter (sender bitrates) and content types. Subjects favoured PC test over handset test in almost all test scenarios. It was found that as the content activity increases device matters. These studies should help in context-aware services in deciding the encoding parameters based on type of device being used to receive content.</span>

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