TY - JOUR
T1 - Fourier, Fresnel and image CGHs of three-dimensional objects observed from many different projections
AU - Abookasis, David
AU - Rosen, Joseph
PY - 2004
Y1 - 2004
N2 - 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.
AB - 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.
KW - Computer Holography
KW - Fourier CGH
KW - Fresnel CGH
KW - Image CGH
KW - Multiple Projections
UR - http://www.scopus.com/inward/record.url?scp=15744399327&partnerID=8YFLogxK
U2 - 10.1117/12.562749
DO - 10.1117/12.562749
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AN - SCOPUS:15744399327
SN - 0277-786X
VL - 5531
SP - 273
EP - 284
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
M1 - 32
T2 - Interferometry XII: Techniques and Analysis
Y2 - 2 August 2004 through 3 August 2004
ER -