Dysopia correction system based on enhanced light field display

基于增强光场显示的视觉缺陷校正系统

Abstract

本发明为患有近视、远视、早期青光眼等视觉缺陷的患者提供一种基于增强光场显示的校正方案,包括视觉和深度信息获取、视觉缺陷建模和增强光场显示三个模块。所述视觉和深度信息获取模块包括两种方式:针对平面显示器情形采用数字图像作为输入并获取深度信息;针对真实场景采用双目立体视觉方式。所述视觉缺陷建模模块包括视觉缺陷参数设定模块和图像退化模型及光场计算处理模块。所述增强光场显示模块包括两种方式:针对平面显示器情形采用系统内部集成的LCD目视显示器;针对真实场景采用近目光场显示模块。
The invention provides a correction scheme based on enhanced light field display to patients with visual defects such as shortsightedness, farsightedness and early-stage glaucoma; and the correction scheme comprises a visual and depth information acquisition module, a dysopia modeling module and an enhanced light field display module. The visual and depth information acquisition module comprises two manners: with respect to the situation of a two-dimensional display, digital images are used as the input and the depth information is acquired; with respect to the real scenes, a binocular three-dimensional visual manner is adopted. The dysopia modeling module comprises a dysopia parameter setting module, an image degradation model and a light field calculating and processing module. The enhanced light field display module comprises two manners: with respect to the situation of the two-dimensional display, an internally integrated LCD (Liquid Crystal Display) visual display of the system is adopted; and with respect to the real scenes, the near-vision light field display module is adopted.

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