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Orientador(es)
Resumo(s)
Motion compensated frame interpolation (MCFI) is one of the most efficient solutions to generate side information (SI) in the context of distributed video coding. However, it creates SI with rather significant motion compensated errors for some frame regions while rather small for some other regions depending on the video content. In this paper, a low complexity Infra mode selection algorithm is proposed to select the most 'critical' blocks in the WZ frame and help the decoder with some reliable data for those blocks. For each block, the novel coding mode selection algorithm estimates the encoding rate for the Intra based and WZ coding modes and determines the best coding mode while maintaining a low encoder complexity. The proposed solution is evaluated in terms of rate-distortion performance with improvements up to 1.2 dB regarding a WZ coding mode only solution.
Descrição
Palavras-chave
Distributed video coding Wyner-Ziv coding Side information Coding mode selection Intra coding
Contexto Educativo
Citação
ASCENSO, João; PEREIRA, Fernando – Low complexity intra mode selection for efficient distributed video coding. In 2009 IEEE International Conference on Multimedia and Expo. New York, NY, USA: IEEE, 2009. ISBN 978-1-4244-4290-4. Vol. 1-3. Pp. 101-104.
Editora
IEEE