Adapting x264 to asynchronous video telephony for the Deaf
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Date
2008
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Telkom
Abstract
Deaf people want to communicate remotely with sign language. Sign language requires sufficient video quality to be intelligible. Internet-based real-time video tools do not provide that quality. Our approach is to use asynchronous transmission to maintain video quality. Unfortunately, this entails a corresponding increase in latency. To reduce latency as much as possible, we sought to adapt a synchronous video codec to an asynchronous video application. First we compared several video codecs with subjective and objective metrics. This paper describes the process by which we chose x264 and integrated it into a Deaf telephony video application, and experimented to configure x264 optimally for the asynchronous environment.
Description
Keywords
Asynchronous, Deaf telephony, H.264, Latency, Quality of Service, Video over IP, x264
Citation
Ma, Z. Y. & Tucker, W. D. (2008). Adapting x264 to asynchronous video telephony for the Deaf. In D. Browne (ed.), Southern African Telecommunication Networks and Applications Conference (SATNAC), pp. 127–132, Wild Coast Sun, Eastern Cape, South Africa