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Rate Control for Content Transcoding

Summary: The universal rate control scheme can be adapted to various transuding purposes including real-time video transcoding. A new rate-distortion (RD) model is established for better characterization of the real RD feature of transcoding. A level-window rate control (WRC) algorithm is proposed for providing smooth visual quality. A sliding window buffer check is utilized for buffer control in WRC if buffer conflict occurs. The proposed RD model and WRC give rise to a universal rate control scheme.

Technology Application: •Video encoding

Country/Region: Hong Kong

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