Novel naked-eye three-dimensional light field imaging system

Abstract

The invention discloses a novel naked-eye three-dimensional light field imaging system comprising a high-speed projector set, a light field scanning screen, a light field scanning screen rotation driving device, a control computer, a light field drawing software system and a system 3D imaging model. The high-speed projector set is composed of three high-speed projectors arranged at different vertical heights and accesses to the control computer through a video parallel interface. The light field scanning screen is driven by the light field scanning screen rotation driving device. The light field scanning screen rotation driving device comprises a servo driving motor and a rotary shaft. The servo driving motor drives a power amplifier board to access to the control computer for control. Thecontrol computer is composed of a PC computer host, a driving interface and a board card. The system 3D imaging model refers to a true naked-eye three-dimensional model, an object and a scene generated by the system. 360-degree omni-directional display of the large-size and high-resolution color dynamic 3d model and scene is realized by utilizing the three-dimensional light field, the projectionimage sequence and the technology of light field shooting and light field rendering and the like.

Description

technical field [0001] The invention belongs to naked-eye three-dimensional imaging technology, in particular to a novel naked-eye three-dimensional light field imaging system. Background technique [0002] The traditional 3D display technology based on binocular parallax has poor user experience and needs to wear auxiliary devices such as 3D glasses. Watching for a long time will cause eye fatigue and discomfort, and may even cause mental disorders. [0003] The image scene displayed by naked-view true 3D display technology is more realistic, more in line with people's visual habits, and will not cause visual fatigue. There are the following types: 1. Volumetric 3D display, which is superimposed by two-dimensional images at different positions in space. The distribution of luminous points in three-dimensional space is generated, but all display points can be seen, there is no spatial occlusion relationship, and the surface texture of the object cannot be displayed; 2. The t...

AI Technical Summary

Problems solved by technology

[0002] The traditional 3D display technology based on binocular parallax has poor user experience and needs to wear auxiliary devices such as 3D glasses. Watching for a long time will cause eye fatigue and discomfort, and may even cause mental disorders

[0003] The image scene displayed by naked-view true 3D display technology is more realistic, more in line with people's visual habits, and will not cause visual fatigue. There are the following types: 1. Volumetric 3D display, which is superimposed by two-dimensional images at different positions in space. The distribution of luminous points in three-dimensional space is generated, but all display points can be seen, there is no spatial occlusion relationship, and the surface texture of the object cannot be displayed; 2. The three-dimensional light field display is to reproduce the luminous light field of the three-dimensional object in the air The light field includes the light direction of the object, which has a space occlusion effect, thus overcoming the shortcomings of the volumetric 3D display in this respect; 3. The holographic 3D imaging system can now be based on rewritable materials. However, holograms are sensitive to vibration and cannot be updated in real time. Computational holographic 3D display technology is not sensitive to vibration and can be updated in real time, but the reproduced image size and field of view are small. Coherent light sources and photoelectric display devices will cause noise. Color display still needs to be solved; 4. Grating three-dimensional display, there are slit grating and cylindrical lens grating three-dimensional display, the light blocking part of the slit grating will reduce the brightness of the three-dimensional image, which greatly affects its application; while the cylindrical lens grating is a transparent medium, It only absorbs a small part of the light and has little effect on the brightness of the three-dimensional image, so it has been widely used, but the refraction of the cylindrical lens will cause the resolution to decrease; At the same time, we can see 3D images with full parallax and full true color, but due to the limited resolution of the shooting device and display device, there are disadvantages such as depth inversion of 3D images, small depth range, low resolution and small viewing angle.

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