[16p-C42-1~11] 3.3 Information photonics and image engineering

[16p-C42-1] Fast Calculation Method for Spherical Computer-Generated Hologram by Spherical Harmonics Transformation

〇Yusuke Sando³, Daisuke Barada^1,2, Jackin Boaz¹, Toyohiko Yatagai¹ (1.CORE, Utsunomiya Univ., 2.Grad. Sch. Eng., Utsunomiya Univ., 3.TRI Osaka Pref.)

Keywords:computer-generated hologram, 3-D display, fast calculation

In 3-D display, a spherical hologram is suitable to realize full viewing zone and motion parallax in both horizontal and vertical directions. However, the huge calculation time is problematic. Here, we propose a fast calculation method for diffraction from an object defined in the Cartesian coordinate to a spherical surface by spherical harmonics transformation of the convolution integral.