title: Simple and fast cosine approximation method for computer-generated hologram calculation.
abstract: The cosine function is a heavy computational operation in computer-generated hologram (CGH) calculation; therefore, it is implemented by substitution methods such as a look-up table. However, the computational load and required memory space of such methods are still large. In this study, we propose a simple and fast cosine function approximation method for CGH calculation. As a result, we succeeded in creating CGH with sufficient quality and made the calculation time 1.6 times as fast at maximum compared to using the look-up table of the cosine function on CPU implementation.
authors.forename: Takashi
authors.initials: T
authors.lastname: Nishitsuji
authors.forename: Tomoyoshi
authors.initials: T
authors.lastname: Shimobaba
authors.forename: Takashi
authors.initials: T
authors.lastname: Kakue
authors.forename: Daisuke
authors.initials: D
authors.lastname: Arai
authors.forename: Tomoyoshi
authors.initials: T
authors.lastname: Ito