Development of Super-Compact and High-Speed Optical Parallel Correkttor for Facial Recognition

开发用于面部识别的超紧凑高速光学并行校正器

• 批准号: 14350036
• 负责人: KODATE Kashiko
• 金额: $ 7.68万
• 依托单位: JAPAN WOMEN'S UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350036/
• 关键词: VCSEL array; VCSEL array module; multi-level zone plate; Multi-beam Optical module; Compact Optical Parallel Correlator; hybrid facial recognition system; High-Speed recognition rate; Biometrics Recognition; マルチレベルゾーンプレートアレイ

With the progress of information technology, the computer-and the internet-systems have become indispensable in our daily lives. In addition to the growth of electronic commerce in economic life, cultural life begins to be changing by such as the introduction of distance education services, ore-learning. Under these beneficial circumstances, however, the need for security to protect the information from illegal accesses is proportionally increased. Any mistake in these systems could incur serious risks in our society. For this sake the technology of personal identification is increasingly recognized. Among other features, "face" is the most familiar element and less subject to psychological resistance as means of security control. Making use of this, since the 1970s in the field of the digital image processing technology, facial images have been one of the primary subjects to be examined. However there are still many technical subjects under study, such as methods for dealing with vari … More ation in the facial image and expression as a result of postural changes at acquisition as well as variations in lighting conditions.The authors have proposed a new scheme using a multi-channel parallel JTC (RJTC) as a means of making better use of spatial parallelism through the use of a diffraction-type multi-level zone-plate array (MLAZPA) to extend a single channel JTC. A hybrid facial recognition system was then realized by adding pre and post digital processing. In a one-to-one correlation experiment conforming to the guideline of biometrics authentication, these two compact optical parallel correlators for facial recognition (COPaC II improved by COPaC: 20x24x43 cm^3, 6 kg, throughput time of 6.6 faces/s) achieved an error rate of less than 1% in terms of both the false rejection and false acceptance rates. From results, the COPaC II was verified to be applicable to computer login and home entrance security.The vertical cavity surface emitting laser (VCSEL) proposed by K. Iga in 1977 has several remarks such as low-threshold operation, high electro-optical conversion efficiency, a circular emission distribution, easy mounting, and two dimensional integration, and as such is potentially applicable in optical communications and optical information processing. VCSELs are applicable in optical sensing using coherence with excellent single-mode characteristics. These tiny lasers can be expected to have an important device in many future technologies.This research introduces a compact optical parallel facial image recognition system providing stable, high-speed, high-precision recognition constructed using this light source module. The design and trial fabrication of a two-dimensional light-source module is presented for application to an optical parallel correlator for facial recognition. The light-source module is composed of a vertical cavity surface emitting laser array and a multi-level zone-plate array as a collimating lens. This module is about 1/10 the size of conventional light source module and the optical parallel correlator has size of 16. 1x13x23 cm^3 and weight 4.4kg, and a throughput time of 19 faces/s. In an experimental evaluation of the system through one-to-one correlation using a database of 300 front facial images, the false match and false non-match rates were less than 1%. The optical system presented here is therefore robust toward a variety of changes in facial expressions and is highly applicability in security systems. These results will open the door to the next class of security systems. Less

随着信息技术的进步，计算机和互联网系统已经成为我们日常生活中不可或缺的一部分。除了电子商务在经济生活中的增长外，文化生活也开始发生变化，如远程教育服务的引入，电子学习。然而，在这些有利的情况下，对保护信息免受非法访问的安全性的需求成比例地增加。这些系统中的任何错误都可能给我们的社会带来严重风险。因此，个人身份识别技术越来越受到重视。在其他特征中，“面子”是最常见的因素，作为安全控制的手段，较少受到心理阻力。利用这一点，自20世纪70年代以来，在数字图像处理技术领域，面部图像一直是要检查的主要对象之一。然而，仍有许多技术课题正在研究中，例如处理瓦里 ...更多信息 由于采集时的姿势变化以及照明条件的变化，面部图像和表情会发生变化。作者提出了一种新方案，使用多通道并行JTC（RJTC）作为更好地利用空间平行性的手段，通过使用衍射型多层波带片阵列（MLAZPA）来扩展单通道JTC。然后，通过增加预处理和后处理，实现了一个混合的人脸识别系统。在符合生物特征认证准则的一对一相关性实验中，这两个用于面部识别的紧凑型光学并行并行并行计算器（COPaC改进的COPaC II：20 x24 x43 cm ^3，6 kg，吞吐时间为6.6张面孔/s）在错误拒绝率和错误接受率方面均实现了小于1%的错误率。实验结果表明，COPaC Ⅱ适用于计算机登录和家庭入口安全。伊加在1977年提出了几点意见，例如低阈值操作、高电光转换效率、圆形发射分布、易于安装和二维集成，因此在光通信和光信息处理中具有潜在的应用。VCSEL可应用于使用具有优异单模特性的相干性的光学感测。这些微小的激光器可以预期在未来的许多技术中具有重要的设备。本研究介绍了一个紧凑的光学并行人脸图像识别系统，提供稳定，高速，高精度的识别使用该光源模块构建。介绍了一种用于人脸识别的光学并行相关器的二维光源模块的设计和试制。光源模块由垂直腔面发射激光器阵列和作为准直透镜的多级波带片阵列组成。该模块的尺寸约为传统光源模块的1/10，光学并行相关器的尺寸为16。1x 13 x23 cm ^3，重量4.4kg，通过时间为19面/秒。在一对一的相关性，使用300正面人脸图像的数据库中的系统的实验评估，假匹配和假不匹配率小于1%。因此，这里提出的光学系统对面部表情的各种变化是鲁棒的，并且在安全系统中具有高度的适用性。这些结果将为下一类安全系统打开大门。少

项目成果

稲葉利江子, 相澤清晴, 小舘香椎子: "個人顔認識のデータベースにおけるメタデータの提案"電子情報通信学会論文誌. (to be published). (2003)

Rieko Inaba、Kiyoharu Aizawa、Kashiko Kodate：“个人面部识别数据库中元数据的提案”电子信息通信工程师学会期刊（即将出版）（2003 年）。

小舘香椎子, 渡邉恵理子: "VCSELアレイモジュールを用いた光並列顔認識装置-セキュリティ応用とその評価-"光アライアンス. 6. (2004)

Kashiko Kodate、Eriko Watanabe：“使用 VCSEL 阵列模块的光学并行人脸识别装置 - 安全应用和评估 -”Hikari Alliance。6。（2004 年）

渡邉恵理子, 小舘香椎子: "光並列顔画像認識装置-垂直型面発光レーザーアレイモジュールによる小型化-"光学. 32・7. 483-485 (2003)

Eriko Watanabe、Kashiko Kodate：“光学并行面部图像识别装置 - 使用垂直表面发射激光阵列模块的小型化”光学 483-485（2003）。

渡邉恵理子, 稲葉利江子, 小舘香椎子: "光学式小型顔認識装置の開発とその評価"画像電子学会誌. 131・5. 848-856 (2002)

Eriko Watanabe、Rieko Inaba、Kashiko Kodate：“紧凑型光学面部识别设备的开发和评估”日本图像电子工程师学会杂志 131・5（2002 年）。

Kashiko Kodate, Rieko Inaba, Eriko Watanabe, Takeshi Kamiya: "Facial Recognition by Compact Parallel Optical Correlator"Measurement Science and Technology. 13・11. 1756-1766 (2002)

Kashiko Kodate、Rieko Inaba、Eriko Watanabe、Takeshi Kamiya：“紧凑型并行光学相关器的面部识别”测量科学与技术 13・11（2002）。