Inlämning av Examensarbete / Submission of Thesis

Nagarajesh Garapati MEE10:11, pp. 44. COM/School of Computing, 2010.

The work

Författare / Author: Nagarajesh Garapati
Titel / Title: Quality Estimation of YouTube Video Service
Abstrakt Abstract:

YouTube is today one of the most popular video sharing web
sites. It is using Flash Player technology together with progressive
download to deliver videos in a variety of qualities adaptable to the
clients connection speed and requirements. Recently YouTube has
got much more user attention with the introduction of HD (High
Definition) video content on its web site. This work started with
analyzing different aspects of YouTube videos and finding a way to
detect re-buffering events during playback. In an effort to do this,
38 videos were uploaded to YouTube and analyzed with respect to
codec, container format, encoded bitrate and resolution. An application
called YouTube Player API was used to detect the re-buffering
events and some more useful information for the investigation. The
greater part of the work concentrated on estimating the effect of
re-buffering on the end user perceived quality of YouTube videos.
Finally, conclusions were made by presenting a way to estimate the
effect of re-buffering on the perceptual quality of YouTube videos and
stating that the maximum quality available on YouTube for HD-720P
and HD-1080P is approx 3.91 and 3.86 (on a scale from 1 to 5) respectively.

Ämnesord / Subject: Telekommunikation - Telecommunications

Nyckelord / Keywords: YouTube, QoE, PEVQ, YouTube API, Quality Degradation, Rebuffering

Publication info

Dokument id / Document id:
Program:/ Programme Electrical Engineering with emphasis on Telecommunication
Registreringsdatum / Date of registration: 02/24/2010
Uppsatstyp / Type of thesis: Magisterarbete/Master's Thesis (60 credits)


Handledare / Supervisor: Markus Fiedler, Andreas Ekeroth
Examinator / Examiner: Markus Fiedler
Organisation / Organisation: Blekinge Institute of Technology
Institution / School: COM/School of Computing

+46 455 38 50 00
I samarbete med / In co-operation with: Ericsson AB, Luleå

Files & Access

Bifogad uppsats fil(er) / Files attached: thesis_naga07.pdf (652 kB, öppnas i nytt fönster)