1. The impact of complexity in the rate-distortion optimization: A visualization tool
- Author
-
Ahmed Aldahdooh, Patrick Le Callet, Marcus Barkowsky, Institut de Recherche en Communications et en Cybernétique de Nantes (IRCCyN), Mines Nantes (Mines Nantes)-École Centrale de Nantes (ECN)-Ecole Polytechnique de l'Université de Nantes (EPUN), and Université de Nantes (UN)-Université de Nantes (UN)-PRES Université Nantes Angers Le Mans (UNAM)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
HEVC ,Execution time ,Computer science ,Real-time computing ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,020207 software engineering ,02 engineering and technology ,Complexity ,UHD ,Coding tree unit ,Visualization ,Computer engineering ,Rate–distortion optimization ,Video compression optimization ,[INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing ,restrict ,0202 electrical engineering, electronic engineering, information engineering ,020201 artificial intelligence & image processing ,RDC optimization ,Multiview Video Coding ,Encoder ,Context-adaptive binary arithmetic coding ,Coding (social sciences) - Abstract
International audience; 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.
- Published
- 2015
- Full Text
- View/download PDF