Abstract
Evaluating user perception of audiovisual interactive services like videotelephony in a reliable fashion calls for a well controlled testing environment and experimental test bed. The present chapter introduces the main aspects of the employed experimental method for studying the perception of audiovisual quality for videotelephony. In this work, a dedicated test bed was deployed that is composed of a controlled laboratory environment, a network infrastructure, a videotelephony client and a control unit. Audiovisual material specific to videotelephony (“head-and-shoulders”) was produced following specific conversational scenarios adapted to the evaluation of the interactive quality. This experimental setup was designed to facilitate the investigation of user experience in an interactive experimental context.
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Notes
- 1.
The following RFC standards were used to packetize video streams: RFC 2250 for MPEG-2 [52], RFC 6416 for MPEG-4 [143] and RFC 6184 for H.264 [156].
- 2.
The AVI container was chosen as it is adapted to store uncompressed audio and video streams along with the associated metadata.
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© 2015 Springer International Publishing Switzerland
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Belmudez, B. (2015). Interactive Model Framework. In: Audiovisual Quality Assessment and Prediction for Videotelephony. T-Labs Series in Telecommunication Services. Springer, Cham. https://doi.org/10.1007/978-3-319-14166-4_2
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DOI: https://doi.org/10.1007/978-3-319-14166-4_2
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Publisher Name: Springer, Cham
Print ISBN: 978-3-319-14165-7
Online ISBN: 978-3-319-14166-4
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