采用层析法对实际三维数据深度图的全息计算

Hologram Calculation for Depth Map of Actual 3D Data Based on the Tomography

提出利用层析法计算实际三维数据的强度图和深度图生成全息图的方法。根据层析法的原理,把复杂三维数据按照深度图的灰度值分成多层物面信息,并根据深度图把每层物面的深度转换成菲涅尔衍射距离。采用角谱算法分别对每层物面进行菲涅尔衍射计算,得到三维物体的全息图。研究结果显示该方法可以快速、准确地对实际复杂的三维物体进行全息图的记录和再现。

Tomography calculate strength map and depth map of actual 3D data is put forward.According to the principle of tomography,the complex 3D data according to the depth map is divided into multiple surface information,and converting depth map into Fresnel diffraction distance.Hologram of 3D object is calculated through the angular spectrum algorithm of Fresnel diffraction.The results show that the method can record and reconstruct actual 3D odject quickly and accurately.