The large-size naked-eye three-dimensional display can provide stunning visual impact effect for multiple people at the same time, which has always been the hot research spot for scientists. In addition, the corresponding real-time encoding algorithm for large-size three-dimensional image reconstruction is also a pressing problem. Here, a spliced high resolution three-dimensional display system composed of four LCD panels and a large size slit grating is demonstrated. The viewing area of each screen is adjusted individually by the method of black and white viewpoint adjustment. Moreover, the image coding algorithm based on depth offset mapping adjusts the offset of different view areas to spliced reconstructed display image and performs four screen synchronous display through the driving device. In the experiment, the spliced high-resolution 3D real-time rendering display system is realized.
The lenticular grating is the most widely adopted core light control device in the naked-eye autostereoscopic display technology, which has a certain inclination angle with the subpixels on the liquid crystal display to eliminate the moirefringes. However, the segmentation of the sub-pixels by the edge of the lenticular lens unit will inevitably lead to the sawtooth of the displayed three-dimensional image. Therefore, a weighted optimization algorithm for synthetic images is proposed in this paper, which is based on the sub-pixel segmentation area and adjacent pixel values for correction. In the experiment, the sawtooth of the reconstructed image is suppressed and the display quality is improved.
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