Abstract
We describe new techniques of synthesizing three types of computer-generated hologram (CGH); Fourier, Fresnel and image CGHs. These holograms, aimed to reconstruct three-dimensional (3-D) objects, are synthesized by means of a unique algorithm of fusing multiple perspective views of the observed scene. The hologram is initially generated in the computer as a Fourier hologram. Then, it can be converted to either Fresnel or image holograms by computing the desired wave propagation and the interference process. By illuminating the ready-to-use CGHs with a collimated plane wave, a 3-D image of the objects is reconstructed. Diffraction efficiency enhancement of the above algorithm by superimposing a random phase on the object during the CGH formation is also presented. Computer simulation and experimental results of the constructed 3-D objects demonstrate the suggested technique.
| Original language | English |
|---|---|
| Article number | 32 |
| Pages (from-to) | 273-284 |
| Number of pages | 12 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 5531 |
| DOIs | |
| State | Published - 2004 |
| Externally published | Yes |
| Event | Interferometry XII: Techniques and Analysis - Denver, CO, United States Duration: 2 Aug 2004 → 3 Aug 2004 |
Keywords
- Computer Holography
- Fourier CGH
- Fresnel CGH
- Image CGH
- Multiple Projections