Academic Journals Database
Disseminating quality controlled scientific knowledge

Content-Based Video Quality Prediction for MPEG4 Video Streaming over Wireless Networks

ADD TO MY LIST
 
Author(s): Asiya Khan | Lingfen Sun | Emmanuel Ifeachor

Journal: Journal of Multimedia
ISSN 1796-2048

Volume: 4;
Issue: 4;
Start page: 228;
Date: 2009;
Original page

Keywords: ANFIS | neural networks | Content clustering | MOS | MPEG4 | video quality evaluation

ABSTRACT
There are many parameters that affect video quality but their combined effect is not well identified and understood when video is transmitted over mobile/ wireless networks. In addition, video content has an impact on video quality under same network conditions. The main aim of this paper is the prediction of video quality combining the application and network level parameters for all content types. Firstly, video sequences are classified into groups representing different content types using cluster analysis. The classification of contents is based on the temporal (movement) and spatial (edges, brightness) feature extraction. Second, to study and analyze the behaviour of video quality for wide range variations of a set of selected parameters. Finally, to develop two learning models based on – (1) ANFIS to estimate the visual perceptual quality in terms of the Mean Opinion Score (MOS) and decodable frame rate (Q value) and (2) regression modeling to estimate the visual perceptual quality in terms of the MOS. We trained three ANFIS-based ANNs and regression based- models for the three distinct content types using a combination of network and application level parameters and tested the two models using unseen dataset. We confirmed that the video quality is more sensitive to network level compared to application level parameters. Preliminary results show that a good prediction accuracy was obtained from both models. However, the regression based model performed better in terms of the correlation coefficient and the root mean squared error. The work should help in the development of a reference-free video prediction model and Quality of Service (QoS) control methods for video over wireless/mobile networks.
Why do you need a reservation system?      Affiliate Program