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Orientador(es)
Resumo(s)
The Wyner-Ziv video coding (WZVC) rate distortion performance is highly dependent on the quality of the side information, an estimation of the original frame, created at the decoder. This paper, characterizes the WZVC efficiency when motion compensated frame interpolation (MCFI) techniques are used to generate the side information, a difficult problem in WZVC especially because the decoder only has available some reference decoded frames. The proposed WZVC compression efficiency rate model relates the power spectral of the estimation error to the accuracy of the MCFI motion field. Then, some interesting conclusions may be derived related to the impact of the motion field smoothness and the correlation to the true motion trajectories on the compression performance.
Descrição
Palavras-chave
Wyner-Ziv video coding Side information Motion compensated frame interpolation Prediction
Contexto Educativo
Citação
ASCENSO, J.; BRITES, C.; PEREIRA, F. – Compression efficiency analysis of Wyner-Ziv video coding with motion compensated side information interpolation. In Proceedings of SPIE Visual Information Processing and Communication. ISBN 978-0-8194-7936-5. Vol. 7543 (2010), pp.
Editora
SPIE-INT SOC OPTICAL ENGINEERING