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arXiv · 2203.01765

Joint Optimization of Rate, Distortion, and Decoding Energy for HEVC Intraframe Coding

Christian Herglotz·André Kaup
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Abstract

This paper presents a novel algorithm that aims at minimizing the required decoding energy by exploiting a general energy model for HEVC-decoder solutions. We incorporate the energy model into the HEVC encoder such that it is capable of constructing a bit stream whose decoding process consumes less energy than the decoding process of a conventional bit stream. To achieve this, we propose to extend the traditional Rate-Distortion-Optimization scheme to a Decoding-Energy-Rate-Distortion approach. To obtain fast encoding decisions in the optimization process, we derive a fixed relation between the quantization parameter and the Lagrange multiplier for energy optimization. Our experiments show that this concept is applicable for intraframe-coded videos and that for local playback as well as online streaming scenarios, up to 15% of the decoding energy can be saved at the expense of a bitrate increase of approximately the same magnitude.

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Christian Herglotz, André Kaup. 2022-03-03. Joint Optimization of Rate, Distortion, and Decoding Energy for HEVC Intraframe Coding. https://doi.org/10.1109/icip.2016.7532416

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