Loading...
Publication
Network distributed 3D video quality monitoring system
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 12.76 MB | Adobe PDF |
Advisor(s)
Abstract(s)
This project description presents a research and development work whose primary goal
was the design and implementation of an Internet Protocol (IP) network distributed
video quality assessment tool. Even though the system was designed to monitor H.264
three-dimensional (3D) stereo video quality it is also applicable to di erent formats of 3D
video (such as texture plus depth) and can use di erent video quality assessment models
making it easily customizable and adaptable to varying conditions and transmission
scenarios.
The system uses packet level data collection done by a set of network probes located
at convenient network points, that carry out packet monitoring, inspection and analysis
to obtain information about 3D video packets passing through the probe's locations.
The information gathered is sent to a central server for further processing including 3D
video quality estimation based on packet level information.
Firstly an overview of current 3D video standards, their evolution and features is
presented, strongly focused on H.264/AVC and HEVC. Then follows a description of
video quality assessment metrics, describing in more detail the quality estimator used
in the work. Video transport methods over the Internet Protocol are also explained in
detail as thorough knowledge of video packetization schemes is important to understand
the information retrieval and parsing performed at the front stage of the system, the
probes.
After those introductory themes are addressed, a general system architecture is
shown, explaining all its components and how they interact with each other. The development
steps of each of the components are then thoroughly described.
In addition to the main project, a 3D video streamer was created to be used in the
implementation tests of the system. This streamer was purposely built for the present
work as currently available free-domain streamers do not support 3D video streaming.
The overall result is a system that can be deployed in any IP network and is
exible
enough to help in future video quality assessment research, since it can be used as
a testing platform to validate any proposed new quality metrics, serve as a network
monitoring tool for video transmission or help to understand the impact that some
network characteristics may have on video quality.
Description
Keywords
Vídeo 3D Vídeo em redes IP distribuídas