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arXiv 2207.02676eess.IV
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利用编码器处理时间对HEVC编码能耗进行建模

Modeling the HEVC Encoding Energy Using the Encoder Processing Time

Geetha Ramasubbu, André Kaup, Christian Herglotz

AI总结:

本文通过x265编码器测量分析HEVC编码时间与能耗关系,提出利用轻量级编码时间估计复杂配置能耗的模型,平均估计误差为11.35%。

摘要:

视频通信能耗的全球重要性使得对视频编码能耗需求的研究成为一项重要任务。为此,通常需要一套专用装置来测量编码和解码系统的能耗。然而,此类测量成本高昂且过程复杂。针对这一问题,本文给出了使用HEVC的x265编码器实现开展的一系列详尽测量结果,并分析了编码时间与编码能耗之间的关系。最后,我们提出了一种简单的编码能耗估计模型,该模型利用轻量级编码过程的编码时间来估计复杂编码配置下的编码能耗。所提模型在所有预设上取平均时,达到了11.35%的平均估计误差。当需要编码能耗估计来开发新的节能视频压缩算法时,本工作的结果具有实用价值。

英文摘要:

The global significance of energy consumption of video communication renders research on the energy need of video coding an important task. To do so, usually, a dedicated setup is needed that measures the energy of the encoding and decoding system. However, such measurements are costly and complex. To this end, this paper presents the results of an exhaustive measurement series using the x265 encoder implementation of HEVC and analyzes the relation between encoding time and encoding energy. Finally, we introduce a simple encoding energy estimation model which employs the encoding time of a lightweight encoding process to estimate the encoding energy of complex encoding configurations. The proposed model reaches a mean estimation error of 11.35% when averaged over all presets. The results from this work are useful when the encoding energy estimate is required to develop new energy-efficient video compression algorithms.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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