Abstract
With the rapid development of portable devices, it becomes more and more popular for people to watch videos by mobile phones. As people are enjoying to watch videos anytime and anywhere, experience and battery life are two major concerns. This paper presents a viewing context adaptive on-chip video memory design methodology to prolong the battery life of portable devices, while maintaining the viewing experience of users. We developed a model for mobile videos in different luminance contexts and based on it, implemented a low-cost low-power video memory. Our results show that up to 32.6% power savings can be achieved, while maintaining almost the same perception quality, as compared to the conventional SRAM.
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