光子学报, 2019, 48 (4): 0411001, 网络出版: 2019-04-28
基于人眼视觉特性的硅基OLED微显示器系统
System of OLED-on-silicon Micro Display Based on Visual Perception of Human Eye
纹理金字塔 多分辨图像融合 数据传输 Texture pyramid Multiresolution image fusion FPGA FPGA OLED OLED Data transmission
摘要
针对头戴式虚拟现实应用中数据带宽传输过高的问题, 设计了一种基于人眼视觉特性的硅基OLED微显示器系统.研究人眼视觉系统, 采用纹理金字塔的Foveation滤波算法模拟人眼的动态凝视效果, 在输出图像上实现多层级纹理金字塔的多分辨图像融合; 在FPGA平台上利用Verilog HDL语言完成了各模块的结构设计, 实现了从视频信号解码到驱动1 600×1 600分辨率的全彩硅基OLED微显示器的整个过程.实验结果表明, 基于人眼视觉特性的多分辨图像融合压缩算法, 具有良好的数据压缩比, 可有效减小硅基OLED微显示器的数据传输带宽, 且符合人的视觉直观感受, 渲染质量良好, 能够满足虚拟现实嵌入式环境下对硅基OELD微显示器实时渲染数据传输需求.
Abstract
Aiming at the high data bandwidth problem in the virtual reality applications, this paper presents a data transmission method for the OLED-on-silicon microdisplay with the human eye visual perception characteristic. With the study on the human visual system, the foveation filtering algorithm of the texture pyramid is used to simulate the dynamic gaze effect of the human eye. The multi-resolution image fusions with the multi-level texture pyramids for the output image are realized. The hardware modules are designed using Verilog HDL language under the FPGA platform, including the video signal decoding and the 1 600×1 600 color OLED-on-silicon microdisplay driving. The experimental results show the multi-resolution image fusion compression algorithm based on the visual perception of human eye has a good data compression ratio. It can effectively decrease the transmission bandwidth for the OLED-on-silicon microdisplay. The proposed method meets the visual perception of the human eye. It has good rendering quality, which meets the real-time rendering requirements of the OLED-on-silicon microdisplay in the virtual reality embedded environment.
季渊, 余云森, 高钦, 穆廷洲, 陈文栋, 冉峰. 基于人眼视觉特性的硅基OLED微显示器系统[J]. 光子学报, 2019, 48(4): 0411001. JI Yuan, YU Yun-sen, GAO Qin, MU Ting-zhou, CHEN Wen-dong, RAN Feng. System of OLED-on-silicon Micro Display Based on Visual Perception of Human Eye[J]. ACTA PHOTONICA SINICA, 2019, 48(4): 0411001.