头盔显示器在现代空战技术中发挥越来越重要的作用, 新型双目数字式头盔显示器具备更广的视场范围和更高的分辨率, 更加适用于飞行和作战需求。但其光学系统的离轴角度更大, 画面畸变情况更为严重, 现有的单目数字图像畸变校正技术并不能完全适应和满足。设计应用于双目数字式头盔显示器的双目数字图像实时预畸变校正系统, 提出双目空间索引坐标逐像素交叉存储、DDR3优化存储的方案, 并采用适应性平滑滤波解决经过畸变校正系统显示图形边缘锯齿感较强的问题, 实现了小型化、低功耗的实时畸变校正系统。

Helmet-Mounted Displays (HMDs) are playing an increasingly important role in modern aerial combats. New binocular digital HMDs have large visual range and high resolution, which are more adaptive to the needs of flight and combat. But the lens of binocular HMD has large off-axis angle, which may lead to serious distortion of images that can change the original image size and shape and influence the display quality and precision. The traditional distortion correction technology of monocular display can't completely meet the needs of real-time distortion correcting. Therefore, this paper introduces a realization method of binocular real-time distortion correction system for the use of binocular digital HMDs. A scheme using pixels cross storage of binocular spatial index coordinates and storage optimization of DDR3 is proposed, and by using the adaptive smoothing filter, the sawtooth problem of the image edges displayed by the distortion correction system is solved. Therefore, a miniaturized real-time distortion correction system with low power consumption is implemented.