results: 本文的实验结果显示，通过在绿色元数据中引入新的语法元素，可以实现对软件视频解码和硬件视频解码的动态能耗减少，最高可达90%和80%分别。Abstract
In this paper, we discuss one aspect of the latest MPEG standard edition on energy-efficient media consumption, also known as Green Metadata (ISO/IEC 232001-11), which is the interactive signaling for remote decoder-power reduction for peer-to-peer video conferencing. In this scenario, the receiver of a video, e.g., a battery-driven portable device, can send a dedicated request to the sender which asks for a video bitstream representation that is less complex to decode and process. Consequently, the receiver saves energy and extends operating times. We provide an overview on latest studies from the literature dealing with energy-saving aspects, which motivate the extension of the legacy Green Metadata standard. Furthermore, we explain the newly introduced syntax elements and verify their effectiveness by performing dedicated experiments. We show that the integration of these syntax elements can lead to dynamic energy savings of up to 90% for software video decoding and 80% for hardware video decoding, respectively.
摘要
在本文中，我们讨论了最新的MPEG标准版本中关于能效媒体消耗的一方面，即绿色元数据（ISO/IEC 232001-11），即远程解码器功率减少的交互信号。在这种情况下，接收者（例如电池驱动的移动设备）可以发送特定的请求到 sender，请求一个较为简单的视频流 Representation，以便更好地解码和处理。因此，接收者可以节省能源，提高运行时间。我们对最新的文献研究进行了概述，这些研究激励了扩展传统绿色元数据标准的扩展。此外，我们还介绍了新引入的语法元素，并通过专门的实验来验证其效果。我们发现，将这些语法元素集成到系统中可以导致软件视频解码中的动态能量节省达到90%，硬件视频解码中的动态能量节省达到80%。