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    Adapting x264 to asynchronous video telephony for the Deaf

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    Date
    2008
    Author
    Ma, Zhen Yu
    Tucker, William David
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    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.
    URI
    http://hdl.handle.net/10566/511
    Collections
    • Research Articles (Computer Science) [144]
    • Prof. William Tucker [89]

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