Inlämning av Examensarbete / Submission of Thesis

Yeshwanth Alahari; Prashant Buddhiraja , pp. 51. COM/School of Computing, 2011.

The work

Författare / Author: Yeshwanth Alahari, Prashant Buddhiraja,
Titel / Title: Analysis of packet loss and delay variation on QoE for H.264 andWebM/VP8 Codecs
Översatt titel / Translated title: Analys av paketförlust och fördröjning variation på QoE för H.264 och WebM/VP8 Codecs
Abstrakt Abstract:

The popularity of multimedia services over Internet has increased in the recent years. These services include Video on Demand (VoD) and mobile TV which are predominantly growing, and the user expectations towards the quality of videos are gradually increasing.
Different video codec’s are used for encoding and decoding. Recently Google has introduced the VP8 codec which is an open source compression format. It is introduced to compete with existing popular codec namely H.264/AVC developed by ITU-T Video Coding Expert Group (VCEG), as by 2016 there will be a license fee for H.264.
In this work we compare the performance of H.264/AVC and WebM/VP8 in an emulated environment. NetEm is used as an emulator to introduce delay/delay variation and packet loss. We have evaluated the user perception of impaired videos using Mean Opinion Score (MOS) by following the International Telecommunication Union (ITU) Recommendations Absolute Category Rating (ACR) and analyzed the results using statistical methods.
It was found that both video codec’s exhibit similar performance in packet loss, But in case of delay variation H.264 codec shows better results when compared to WebM/VP8. Moreover along with the MOS ratings we also studied the effect of user feelings and online video watching experience impacts on their perception.

Ämnesord / Subject: Telekommunikation - Telecommunications
Elektroteknik - Electrotechnology
Datavetenskap - Computer Science\Networks and Communications
Nyckelord / Keywords: H.264, WebM/VP8, Quality of Experience, Subjective video quality.

Publication info

Dokument id / Document id: houn-8uuahm
Program:/ Programme Electrical Engineering with emphasis on Telecommunication
Registreringsdatum / Date of registration: 06/01/2012
Uppsatstyp / Type of thesis: Masterarbete/Master's Thesis (120 credits)


Handledare / Supervisor: Adrian Popescu
Examinator / Examiner: Patrik Arlos
Organisation / Organisation: Blekinge Institute of Technology
Institution / School: COM/School of Computing

+46 455 38 50 00
Anmärkningar / Comments:

Yeshwanth Alahari
Phone : +91-9986739097
Buddhiraja Prashant
Phone : +46-734897359

Files & Access

Bifogad uppsats fil(er) / Files attached: bth2012alagari.pdf (1373 kB, öppnas i nytt fönster)