[20p-431B-1~14] 3.3 Information photonics and image engineering

[20p-431B-6] Fast calculation method of wide viewing-zone computer-generated hologram with a parabolic mirror by area segmentation

〇Yusuke Sando³, Daisuke Barada^1,2, Toyohiko Yatagai¹ (1.CORE, Utsunomiya Univ., 2.Grad. Sch. Eng., Utsunomiya Univ., 3.ORIST)

Keywords:holographic 3D display, computer-generated hologram, holographic stereogram

We propose a fast calculation method for a holographic 3D display using a convex parabolic mirror by area segmentation. This treatment enables paraxial approximation and fast Fourier transform by limiting the hologram area to be calculated. The depth information of a 3D object is considered every segmented sub-hologram, At the boundary area, continuity of wavefronts has been maintained, and the quality of the reconstructed image has improved.