曲面显示产生的视觉畸变及其校正算法研究

针对在观赏曲面显示屏在显示的平面画面时,画面产生的视觉畸变,需要对原始画面进行校正以得到等效于平面显示屏的视觉效果。提出采用平面画面几何投影到曲面,对曲面画面的横向像素和纵向像素分别进行校正的方法,其中横向像素的校正着力于解决画面左右边缘的拉伸问题,纵向像素的校正着力于解决画面在视觉上的桶形畸变问题。实验结果表明该算法在观赏者处于最佳观赏位置下观赏校正后的曲面画面,可获得等同于平面画面一致的视觉效果。

In view of the visual distortions of the screen when viewing the flat screen displayed on the surface display screen, it is necessary to correct the original picture to obtain the visual effect equivalent to the fiat panel display. A method of correcting the horizontal pixels and the vertical pixels of the curved surface picture by using the plane projection of the geometric projection to the curved surface is proposed. The correction of lateral pixels is to solve the stretching problem of the left and right edges of the picture, and the correction of the vertical pixels focuses on solving the bucket distortion problem~ The experimental results show that the algorithm can obtain the same visual effect as the plane picture when the viewer is at the best viewing position to view the corrected curved surface picture.