Effective error recovery method using packet loss rate of networks in realtime video transfer system

An error recovery method of a video transfer system includes the steps of: setting a refresh rate on the basis of a packet loss rate of a video frame; and encoding a macro-block of the video frame in an intra mode according to the set refresh rate. Since the effective intra encoding method in consid...

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Bibliographic Details
Main Author JEONG YEONG AN
Format Patent
LanguageEnglish
Published 31.10.2002
Edition7
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:An error recovery method of a video transfer system includes the steps of: setting a refresh rate on the basis of a packet loss rate of a video frame; and encoding a macro-block of the video frame in an intra mode according to the set refresh rate. Since the effective intra encoding method in consideration of the packet loss rate is provided, the image state of the receiving party can be taken into consideration and a mobile image service of a high picture quality can be provided on a real time basis. In addition, since the error recovery method of a video transfer system of the present invention has the flexible refresh rate considering the image state (the picture quality state) of the receiving party, it is suitable for the error recovery method for a high picture quality video transferring.
Bibliography:Application Number: US20020098794