title: Fast point-based method of a computer-generated hologram for a triangle-patch model by using a graphics processing unit.
abstract: The point-based method and fast-Fourier-transform-based method are commonly used for calculation methods of computer-generation holograms. This paper proposes a novel fast calculation method for a patch model, which uses the point-based method. The method provides a calculation time that is proportional to the number of patches but not to that of the point light sources. This means that the method is suitable for calculating a wide area covered by patches quickly. Experiments using a graphics processing unit indicated that the proposed method is about 8 times or more faster than the ordinary point-based method.
authors.forename: Takuya
authors.initials: T
authors.lastname: Sugawara
authors.forename: Yuki
authors.initials: Y
authors.lastname: Ogihara
authors.forename: Yuji
authors.initials: Y
authors.lastname: Sakamoto