Our paper, titled as "Mobile Display Power Reduction for Video using Standardized Metadata", has been accepted by IEEE Trans. on Mobile Computing (TMC). This paper generally utilizes the ISO/IEC 23001-11 Green Metadata standard to reduce the mobile display power consumption. A part of the technogies described in this TMC paper have been adopted into the ISO/IEC 23001-11. Our lab is the leading contributor to this ISO/IEC 23001-11 standard which would make billions of mobile video applications more GREEN (energy-efficient). Dr. Z. Ma (这个 E-mail 受反垃圾邮件程序保护，您需要启用 JavaScript 才能查看。) is the corresponding author of this paper. This is a joint work with Samsung Research.
Abstract:
The inordinate power consumption of contemporary display panels accelerates battery depletion in mobile devices. Existing display power reduction approaches are suboptimal because they incur additional computations and latency on the mobile device or because they assume a server-client model in which a single entity controls the server and the client. To overcome these limitations, we extract standardized metadata at a server and transmit it to a client along with the video bitstream. This metadata includes quality indicators, associated power controls and contrast-enhancement information. The metadata guarantees that specified quality levels are achieved while avoiding flicker and minimizing power consumption. Furthermore, the metadata has minimal computational, storage & power overheads and, because it is standardized, the metadata benefits servers and clients in open ecosystems wherein all entities function independently. Our research has been implemented on mobile devices and provides, on average, 32.5% power reduction at high quality and up to 84% power reduction at acceptable quality. The ISO/IEC Moving Pictures Expert Group has recently standardized our proposed metadata in the Green Metadata Standard.