CAJ | 학술논문

计算机制全息图的计算速度影响了全息三维显示技术的实用化。鉴于此，提出了一种计算机制全息图快速计算方法。通过分析发现传统全息图存在大量冗余信息，采用空间冗余光波去除方法，利用人眼跟踪技术实时确定子全息图范围，并将二步算法思想用于子全息图计算，计算行列贡献分量。由于仅计算子全息图，将大范围冗余光波数据忽略，大大减少了全息图计算量，同时二步算法的引入去除了大量冗余计算，全息图的运算速度明显提高。实验证明，这种算法是行之有效的，且计算速度比二步算法提高了10倍左右。
계산궤제전식도적계산속도영향료전식삼유현시기술적실용화。감우차，제출료일충계산궤제전식도쾌속계산방법。통과분석발현전통전식도존재대량용여신식，채용공간용여광파거제방법，이용인안근종기술실시학정자전식도범위，병장이보산법사상용우자전식도계산，계산행렬공헌분량。유우부계산자전식도，장대범위용여광파수거홀략，대대감소료전식도계산량，동시이보산법적인입거제료대량용여계산，전식도적운산속도명현제고。실험증명，저충산법시행지유효적，차계산속도비이보산법제고료10배좌우。
The generation speed of the Computer Generated Hologram(CGH)affects the application of holographic three-dimen-sional display technology. Hence, an effective and fast computation method is proposed. Through the analyzing of the traditional hologram, a lot of redundant information is found in it. The combination of spatial redundancy light wave removal algorithm and tracking of the human eyes methods determines the scope of sub-holograms. Furthermore, a method for sub-hologram that ranks contribution component is calculated by two-step algorithm is applied. Calculation of sub-hologram which ignores a large number of redundant data and application of two-step algorithm which removes redundant computation loosen the computational amount of CGH and thus increase the speed. The experimental results show that the algorithm is effective and the speed is accelerated about ten times by the two-step algorithm.