为准确客观评价和优化固态体积式真三维显示中的闪烁现象, 提出一种隔层扫描的光阀矩阵刷新方法。采用傅里叶变换分析成像光信号在不同扫描模式下的频域能量分布, 在时间对比敏感度函数加权幅值谱强度(CSWA)评价模型的基础上, 提出时间对比敏感度函数加权幅值谱对比度(CSWC)方法。两组视觉感知实验的结果与CSWC评价模型的估算结果的Pearson相关系数达到-0.99。结果表明, 所提出的隔层扫描方法可以减轻真三维显示的闪烁, 所提出的CSWC评价模型实现了对真三维显示闪烁程度的客观量化评价。该结果对基于深度融合原理的三维显示闪烁程度优化和观看舒适度提升起到积极的指导和推动作用。

To evaluate and optimize the flicker visibility in solid-state 3D volumetric display, a interlaced scanning refresh method of shutter array is proposed. Frequency domain energy distribution of the imaging light signal in different scanning modes is analyzed through Fourier transformation. Based on the temporal contrast sensitivity function weighted amplitude(CSWA) model, the method of temporal contrast sensitivity function weighted amplitude contrast(CSWC) is proposed. Meanwhile, Pearson correlation coefficient between two visual perception experiment results and the estimation result of CSWC model is -0.99, which shows that the proposed method could reduce flicker visibility, and the proposed CSWC evaluation model realizes objective evaluation of the flicker in solid-state 3D volumetric display. The result can guide and facilitate the flicker optimization in 3D display based on the depth-fused principle and the improvement of visual comfort.