Thapliya R, Kamiya T
Department of Electronic Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
Appl Opt. 2000 Oct 10;39(29):5309-17. doi: 10.1364/ao.39.005309.
The multibeam parallel joint transform correlator for optical pattern recognition, which was recently proposed by the authors [Appl. Opt. 37, 5408 (1998)], can increase parallelism without accumulating zero-order background level at the first Fourier transform plane. To evaluate the throughput capability, an experimental trial was made, achieving a 67-ms recognition rate per face per channel, which is limited by the response of the optically addressed liquid-crystal spatial light modulator. A general design theory is developed for dense packing of the optical channels for a given spatial light modulator resolution, considering the bandwidth requirement of the target image. Then the condition for submillisecond throughput with state-of-the-art device technology is discussed.
作者最近提出的用于光学模式识别的多光束并行联合变换相关器[《应用光学》37, 5408 (1998)]，可以在不累积一阶傅里叶变换平面上的零阶背景光强的情况下增加并行度。为了评估通量能力，进行了一项实验尝试，实现了每个通道每张脸67毫秒的识别速率，这一速率受光学寻址液晶空间光调制器的响应限制。针对给定空间光调制器分辨率，考虑目标图像的带宽需求，开发了一种用于光学通道密集排列的通用设计理论。然后讨论了采用现有器件技术实现亚毫秒通量的条件。
