三维面形测量数据的计算全息可视化

提出利用计算机制全息进行三维面形测量数据立体重现的技术。首先利用三维面形测量技术同时获取三维物体的强度和距离像；然后根据三维面形测量数据，设计和制作菲涅耳计算全息图；最后将计算全息和光学全息相结合，以菲涅耳计算全息图的光学再现像为对象，记录光学像全息。这样既解决了计算机制全息术中真实三维物体立体信息数据捕捉的问题，又为三维面形检测提供了一个行之有效的立体重构技术。给出了这种方法的原理、计算全息的设计、制作方案和实验验证结果。

Visualization Using Computer-Generated Hologram (CGH) Based on Three-Dimensional Shape Measurement Data of Object

A technique of reconstructing 3 D object shape by its measurement data using CGH is proposed. Firstly, both the range image and the intensity image of 3 D object are acquired simultaneously by using 3 D sensing system. Then, the Fresnel CGH is designed and fabricated. The problem of combining CGH with optical holography, an image hologram is recorded. This technique resolves how to obtain 3 D data in CGH as well as how to reproduce the object images in measurement of 3 D object shapes. The principle of the proposed method, the technology for designing and fabrication of the CGH and optical hologram and the experimental results are given.