基于Oxford Project的低视力者视觉增强系统设计

The Design of Vision Enhancement System Based on Oxford Project for People with Low Vision

针对低视力人群,提出了头戴式视觉增强系统ApperSight,包括4种视觉增强模式:放大增强、对比增强、边缘增强和黑白反转; 3种显示模式:Full、Window和Object。ApperSight允许用户根据自身偏好、环境情况和任务种类,选择、调整和组合不同的视觉增强模式和显示模式。设计中的设备定制化和云端数据处理是提高不同低视力者视觉体验的关键技术。仿真结果表明,视觉增强系统不仅可以确保图像质量以及细节特征,而且还增强了图像对抗噪声的能力,取得了较好的图像处理效果,证明了视觉增强系统的可行性。

For the low vision people,this paper presents Apper Sight,a head-mounted vision enhancement system with four enhancement methods:Magnification,Contrast Enhancement,Edge Enhancement and Black/White Reversal;in three display modes:Full,Window and Object.Apper Sight enables user to customize their visual experience by selecting,adjusting,and combining different enhancement methods and display modes according to preference,environment and task type.The ability to customize the system and data processing in the cloud is key to enabling people with a variety of different vision abilities to improve their visual experience.The simulation results show that the vision enhancement system can not only ensure the image quality and the detail features,but also enhance the ability of the image against noise,obtain better image processing effect,and prove the feasibility of the vision enhancement system.