Single spatial light modulator realizes color stereoscopic point cloud naked-eye display system and method

Abstract

The invention discloses a system and method for realizing naked-eye display of color stereoscopic point clouds by a single spatial light modulator. Model and produce 3D color point cloud models, which are divided into RGB three-channel sub-models; perform de-occlusion and down-sampling processing, scale coordinate scales, and control model distribution and spacing; calculate the diffraction integral of each point to the SLM plane and superimpose to obtain interrelation Figure: Adjust the brightness of the three collimator lasers to the lowest appropriate level. The three beams of light of different colors are incident on the wedge beam splitter after passing through the polarizer. The spatial light modulator of the image, after reflection, is incident to the human eye through the lens group to form a naked-eye 3D display. The present invention utilizes a single spatial light modulator to realize a naked-eye 3D display system with a wide viewing angle and high definition of color stereoscopic point cloud, solves the problems of aliasing of color imaging irrelevant images of a single spatial light modulator and poor naked-eye observation effect, and is a color stereoscopic naked-eye display system. The miniaturization of equipment provides an effective way.

Description

technical field [0001] The invention relates to a 3D display system and method in the technical field of holographic display, and more particularly to a system and method for realizing naked-eye 3D display of color stereoscopic point clouds with a single spatial light modulator. Background technique [0002] Color naked-eye 3D displays stereoscopic information of depth perception. It can completely record and reconstruct the wavefront of three-dimensional objects, provide all the depth information required by the human visual system, and reproduce the same scene in the objective world more realistically. One of the hot spots. The color naked-eye 3D display technology can be roughly divided into two categories: one type of three SLMs: RGB three-color light illuminates three SLMs to reconstruct the 3D image field of view on the reconstruction plane. This solution requires complex optical path design to ensure three RGB channels. The reconstructed images are precisely put tog...

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Problems solved by technology

At present, based on this method, there are not many studies on reducing image noise and eliminating irrelevant images in the spatial superposition method, and this method has not exerted its due advantages.

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