Eliminating the Effects of Freezing Frames on User Perceptive by Using a Time Interleaving Technique

Document type: Journal Articles
Article type: Original article
Peer reviewed: Yes
Full text:
Author(s): Hussein Muzahim Aziz, Markus Fiedler, Håkan Grahn, Lars Lundberg
Title: Eliminating the Effects of Freezing Frames on User Perceptive by Using a Time Interleaving Technique
Journal: Multimedia Systems
Year: 2012
Volume: 18
Issue: 3
Pagination: 251-262
ISSN: 0942-4962
Publisher: Springer-Verlag
URI/DOI: 10.1007/s00530-011-0235-z.
ISI number: 000304565800004
Organization: Blekinge Institute of Technology
Department: School of Computing (Sektionen för datavetenskap och kommunikation)
School of Computing S-371 79 Karlskrona
+46 455 38 50 00
http://www.bth.se/com
Authors e-mail: haz@bth.se
Language: English
Abstract: Streaming video over a wireless network faces
several challenges such as high packet error rates, bandwidth variations, and delays, which could have negative effects on the video streaming and the viewer will perceive a frozen picture for certain durations due to loss of frames.
In this study, we propose a Time Interleaving Robust
Streaming (TIRS) technique to significantly reduce the
frozen video problem and provide a satisfactory quality for
the mobile viewer. This is done by reordering the streaming video frames as groups of even and odd frames. The objective of streaming the video in this way is to avoid the losses of a sequence of neighbouring frames in case of a long sequence interruption. We evaluate our approach by using a user panel and mean opinion score (MOS) measurements; where the users observe three levels of frame losses. The results show that our technique significantly improves the smoothness of the video on the mobile device in the presence of frame losses, while the transmitted data are only increased by almost 9% (due to reduced time locality).
Subject: Computer Science\Networks and Communications
Keywords: Streaming video , Frozen pictures , Interleaving, Switching frames, MOS
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