Aktina Vision: Full-parallax three-dimensional display with 100 million light rays

Abstract

Natural three-dimensional (3D) images, perceived as real objects in front of the viewer, can be displayed by faithfully reproducing light ray information. However, 3D images with sufficient characteristics for practical use cannot be displayed using conventional technologies because highly accurate reproduction of numerous light rays is required. We propose a novel full-parallax light field 3D display method named ‘Aktina Vision’, which includes a special top-hat diffusing screen with a narrow diffusion angle and an optical system for reproducing high-density light rays. Our prototype system reproduces over 100,000,000 light rays at angle intervals of less than 1° and optimally diffuses light rays with the top-hat diffusing screen. Thus, for the first time, light field 3D image reproduction with a maximum spatial resolution of approximately 330,000 pixels, which is near standard-definition television resolution and three times that of conventional light field display using a lens array, is achieved.

Roadmap on 3D integral imaging: sensing, processing, and display

“…For multiple users, a 3D display with a large area is preferred; however, it is difficult to fabricate a lens array composed of a lot of micro-lenses covering a large area. Aktina Vision solves this problem by controlling the display directions of multi-view images by using a lens larger than the micro-lenses [91,92]. In [91], multi-view images consisting of a total of 350 viewpoints are projected onto a diffusing screen by using fourteen 4K projectors.…”

“…Aktina Vision solves this problem by controlling the display directions of multi-view images by using a lens larger than the micro-lenses [91,92]. In [91], multi-view images consisting of a total of 350 viewpoints are projected onto a diffusing screen by using fourteen 4K projectors. The resolution of each view image is 768(H) x 432(V) pixels, and the viewing angle of the 3D image is 35.1(H) x 4.7(V) degrees.…”

Особенности Получения Изображений Протяженных Объектов, Восстанавливаемых Импульсными Голограммами

“…В настоящее время большой интерес проявляется к методам получения 3D изображений больших сцен [1][2][3][4][5][6][7][8][9][10]. Рассматриваемые в литературе методы основаны на различных принципах и эффектах, включающих стереоэффекты и эффекты параллакса [1][2][3][4], различные способы синтеза изображений, в том числе с использованием цифровых технологий [5][6][7][8][9][10]. Однако эти методы технически сложны и сталкиваются с рядом проблем, связанных с соответствием формируемых изображений реальным объектам, особенно протяженным.…”

68‐4: Late‐News‐Paper: 3D/2D Partially Convertible Integral Imaging Display Using Geometric Phase Lens Array

“…Recently, light field display technologies have attracted attention considerable as a three-dimensional (3D) display method that does not require glasses [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. In these technologies, the light rays from objects are reconstructed by using a display device and an optical system.…”