为了实现对多层光场三维显示技术的优化, 利用亚克力板和光学胶片实现光场的还原, 增加多层权重和光场权重, 扩大调整显示效果的自由度, 在计算过程中能够在外部参数不变的情况下改变多层装置的显示效果.证明了水平视场下各行图像的相互独立性, 采用行分治方法进行计算, 降低了拟合运算的时间复杂度,节省了运算所需的时间与内存, 使有限时间内更高精度的计算成为可能.在其他参数确定的情况下, 采用原始方法能够进行计算的最大尺寸是900×1 200像素, 而行分治方法能够计算1 800×2 400像素的图像而不出现内存不足的问题.基于图像方差建立了衡量光场重建效果的标准, 在此标准下, 发现增加层数、分辨率, 减少视场大小和平均多层权重可以提高整体成像质量, 增加特定视场角的权重能够提高其特定方向的成像质量.从实际制作的3层共2 mm厚的多层模型中观测到了视差, 证明了多层装置在光场还原方面的显著优势.

In order to enhance the imaging quality of tomographic 3D display technique, the original light field was firstly reconstructed with acrylic panels and films before exerting adjustments. The freedom for adjusting display quality was expanded by adding layer weight and light field weight as factors, enabling the display quality to be changed while external factors remain stable. The mutual independence of line images under a horizontal parallax circumstance was confirmed, and thus a line division method was applied in the calculation to eliminate the time complexity of the fitting proceed. As the memory is saved and efficiency is enhanced, it is possible to achieve more accurate calculation in limited time. Given other factors are determined, the maximum resolution of images to be calculated under the original method is 900×1 200 pixel, but the line division method is able to calculate 1 800×2 400 pixel images without memory overflow. The evaluation standard of the effect of image reconstruction is established based on the image variance, under which it is found that increasing resolution and layer number, decreasing field of view or balancing layer weight can enhance holistic reconstruction quality, and the quality of a certain angle of view can be promoted by adding to its light field weight correspondingly. Parallax is observed in a fabricated 3-layer model with 1mm layer distance, denoting the distinguished advantage of tomographic 3D display in the reconstruction of light field.