Self-adaptive high-resolution near-to-eye optical field display device and method on basis of eye tracking

Abstract

The invention discloses a self-adaptive high-resolution near-to-eye optical field display device on the basis of eye tracking. The self-adaptive high-resolution near-to-eye optical field display device comprises a beam splitter, a spatial light modulator array and backlight lighting equipment, wherein the beam splitter, the spatial light modulator array and the backlight lighting equipment are sequentially arranged in the line-of-sight direction of human eyes; the beam splitter is used for acquiring eye pupil position information; the spatial light modulator array is used for modulating transmittance of polarized light entering the human eyes; the backlight lighting equipment is used for providing backlight with uniform brightness for the spatial light modulator array. The invention also discloses a self-adaptive high-resolution near-to-eye optical field display method on the basis of eye tracking. According to the self-adaptive high-resolution near-to-eye optical field display method, a weighting function is set for each viewpoint and by utilizing a multi-viewpoint optical field global optimization method, redundant information of an edge view field is reduced and three-dimensional display visual resolution is improved; meanwhile, a human eye detection device is combined to acquire eye pupil positions in real time, optical field density is sampled and distributed again according to visual characteristics and by utilizing a single viewpoint optical field local optimization method, the computation burden of the optimization method is greatly reduced and self-adaptive high-resolution real-time three-dimensional display is realized.

Description

technical field [0001] The invention relates to the technical field of three-dimensional display, in particular to an adaptive high-resolution near-eye light field display device and method based on human eye tracking. Background technique [0002] We live in a three-dimensional world, yet traditional display technologies only provide two-dimensional displays that lack depth information. The two-dimensional display greatly limits the amount of information that people can acquire to recognize the colorful world. The rapid development of electronic technology, optical technology and optoelectronic technology has promoted the development of three-dimensional display technology. Three-dimensional display technology provides depth information of displayed objects, which meets the needs of modern people for information acquisition. Therefore, 3D technology has been widely concerned in academia and business circles. [0003] Existing 3D display technologies mainly include parall...

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Problems solved by technology

[0002] We live in a three-dimensional world, but traditional display technologies only provide two-dimensional displays that lack depth information

Two-dimensional display greatly limits the amount of information that people can acquire to understand the colorful world

[0005] However, there are two defects in the above method: 1. The algorithm is aimed at three-dimensional display beyond the distance of clear vision, and the algorithm is only effective in the field of view angle of about 10°, while the light field near-eye display using multi-layer spatial light modulation Optically, the field of view angle can reach more than 60°; 2. When the human eye observes an image with a large field of view in near-eye display, its eyeball is scanning in a wide range, and its observation angle is related to the position of the field of view. The algorithm is not suitable for near-eye display

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