The impact of complexity in the rate-distortion optimization: A visualization tool

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

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

Recently, the new video coding standard, High Efficiency Video Coding (HEVC), was released. A 50% bitrate reduction at the same visual quality relative to the previous standard was achieved. These gains are partly related to tools that increase complexity such as coding decisions taken on smaller image areas or further improvements in motion compensated coding. This paper addresses the complexity issue, i.e. the execution time, and its impact when it is combined with the bitrate and distortion optimization of the video coding. Given a set of encoder configurations that restrict the encoding such that the complexity varies, an analysis including a visualization tool is proposed to help the user to select the best configuration for a specific amount of rate, distortion and complexity. A possible targeted applications are also introduced.

Mots clés: UHD; Video compression optimization; RDC optimization; Execution time; Complexity; HEVC

Domaines: Traitement du signal et de l'image [eess.SP]

Ahmed Aldahdooh, Marcus Barkowsky, Patrick Le Callet. The impact of complexity in the rate-distortion optimization: A visualization tool. 22nd INTERNATIONAL CONFERENCE ON SYSTEMS, SIGNALS AND IMAGE PROCESSING (IWSSIP 2015), Sep 2015, Londres, United Kingdom. pp.45-48, ⟨10.1109/IWSSIP.2015.7314173⟩. ⟨hal-01346405⟩