Spatio-temporal error concealment technique for high order multiple description coding schemes including subjective assessment

Ahmed Aldahdooh (1) , Marcus Barkowsky (1) , Patrick Le Callet (1)

1 IRCCyN - Institut de Recherche en Communications et en Cybernétique de Nantes

Error resilience (ER) is an important tool in video coding to maximize the quality of Experience (QoE). The prediction process in video coding became complex which yields an unsatisfying video quality when NALunit packets are lost in error-prone channels. There are different ER techniques and multiple description coding (MDC) is one of the promising technique for this problem. MDC is categorized into different types and, in this paper, we focus on temporal MDC techniques. In this paper, a new temporal MDC scheme is proposed. In the encoding process, the encoded descriptions contain primary frames and secondary frames (redundant representations). The secondary frames represent the MVs that are predicted from previous primary frames such that the residual signal is set to zero and is not part of the rate distortion optimization. In the decoding process of the lost frames, a weighted average error concealment (EC) strategy is proposed to conceal these frames. The proposed scheme is subjectively evaluated along with other schemes and the results show that the proposed scheme is significantly different from most of other temporal MDC schemes.

Mots clés: —Error Resilience (ER); Source Coding (SC); Error Concealment (EC); Multiple description coding (MDC); Subjective experiment; HEVC; UHD

Domaines: Informatique [cs]

Ahmed Aldahdooh, Marcus Barkowsky, Patrick Le Callet. Spatio-temporal error concealment technique for high order multiple description coding schemes including subjective assessment. 2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX), Jun 2016, Lisbon, Portugal. ⟨10.1109/QoMEX.2016.7498929⟩. ⟨hal-01346406⟩