HORN-6 special-purpose clustered computing system for electroholography

Abstract

We developed the HORN-6 special-purpose computer for holography. We designed and constructed the HORN-6 board to handle an object image composed of one million points and constructed a cluster system composed of 16 HORN-6 boards. Using this HORN-6 cluster system, we succeeded in creating a computer-generated hologram of a three-dimensional image composed of 1,000,000 points at a rate of 1 frame per second, and a computer-generated hologram of an image composed of 100,000 points at a rate of 10 frames per second, which is near video rate, when the size of a computer-generated hologram is 1,920 x 1,080. The calculation speed is approximately 4,600 times faster than that of a personal computer with an Intel 3.4-GHz Pentium 4 CPU.

A New Architecture of High-Performance Digital Hologram Generator based on Independent Calculation of a Holographic Pixel

“…일본의 Chiba 대학의 연구팀은 Yoshikawa교수의 이론을 변형시켜 x축에서 반복덧셈만을 수행하여 CGH를 계산하는 알고리즘을 제안하고 FPGA를 이용한 하드웨어 로 구현하였다 [6] . [13] . 또한 100% 파이프라인(pipeline) 구조를 기반으로 하는 CGH 프로세서가 제안되었다 [14] .…”

Holographic 3-D Displays - Electro-holography within the Grasp of Commercialization

“…A computing system with dedicated hardware performs hologram calculation much faster than a PC. As an example, the HORN-6 cluster uses a cluster of boards equipped with FPGA chips (Ichihashi et al, 2009). The system needs 1 second to calculate a hologram with 1920 x 1080 pixels if the object is composed of 1 million points and 0.1 second if the object is composed of 100,000 points.…”

Application of Mathematical Symmetrical Group Theory in the Creation Process of Digital Holograms

“…The creation time of holograms has been reduced by using increasingly faster algorithms and hardware such as FPGA (Field Programmable Gate Array) and parallel programming techniques [2] and precomputed lookup tables [3,4]. Nevertheless, another challenging approach seeks to reduce the computational complexity since it also can reduce the processing time.…”