SHF: Medium: Collaborative Research: System Solutions for High-Quality and Energy-Efficient Mobile Displays

智能手机和平板电脑等移动设备是为在苛刻的物理条件下使用而设计的。因此，他们的显示器面临着两个独特的挑战。首先，环境因素，包括视角、环境照明和设备不必要的晃动，往往会扭曲感知到的显示内容。此外，在最先进的移动设备中，显示器被认为是最大的电力消耗者之一。该项目的目标是提供应对这两个挑战所需的算法基础以及软件和硬件解决方案。作为莱斯大学和南加州大学的密切合作，该项目的目标是做出以下科学贡献。(1)基于传感器的观看上下文推理，从现代移动设备中可用的传感器中高效地获取观看上下文。(2)补偿上下文因素，改变显示内容，在保真度和/或可用性方面产生改进的用户感知。(3)提供电压缩放和颜色/图像转换，修改显示数据，以显着降低人类感知约束下移动OLED显示器的功耗。通过在具有挑战性的观看条件下提高移动显示器的性能和能源效率，该项目将扩展移动计算的范围，超越目前的水平，因此，具有深远的社会经济影响。通过NSF/FDA驻院学者（SIR）计划，参与该项目的研究生将访问美国FDA，并与FDA研究人员合作，将研究成果应用于移动显示器的医学成像问题。所提议的研究的多学科性质将在系统架构和电路设计、人机交互、图像处理和光度学方面带来新的研究问题。它还将为本科生和研究生的教育和研究提供一个多学科的平台。

Mobile devices such as smartphones and tablets are intended for usage under demanding physical conditions. As a result, their displays face two unique challenges. First, contextual factors, including the viewing angle, ambient lighting, and unwanted shaking of the device, tend to distort the perceived display content. Moreover, the display is known to be among the largest power consumers on a state-of-the-art mobile device. The goal of this project is to provide the algorithmic foundation as well as software and hardware solutions required for addressing these two challenges. As a close collaboration between Rice University and the University of Southern California, the project targets the following scientific contributions. (1) Sensor-based inference of viewing context that efficiently obtains the viewing context from sensors available in modern mobile devices. (2) Compensation for contextual factors that transforms the display content to produce an improved user perception in terms of fidelity and/or usability. (3) Supply voltage scaling and color/image transformations that modify the display data to significantly reduce the power consumption of mobile OLED displays under human perceptual constraints. By improving the performance and energy efficiency of mobile displays under challenging viewing conditions, this project will extend the reach of mobile computing beyond its current levels, therefore, having a far-reaching socio-economic impact. Through the NSF/FDA Scholar-in-Residence (SIR) program, graduate students working on this project will visit the US FDA and collaborate with FDA researchers to apply research results to medical imaging problems with mobile displays. The multidisciplinary nature of the proposed research will invite new research problems in system architecture and circuit design, human-computer interaction, image processing, and photometry. It will also provide a multidisciplinary platform for undergraduate and graduate education and research.