Real-time human face recognition system with high parallelism

被引:3
作者
Feng, WY [1 ]
He, QS [1 ]
Yan, YB [1 ]
Jin, GF [1 ]
Wu, MX [1 ]
机构
[1] Tsing Hua Univ, Dept Precis Instruments, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China
来源
PARALLEL AND DISTRIBUTED METHODS FOR IMAGE PROCESSING III | 1999年 / 3817卷
关键词
volume holographic storage; wavelet transform; neural network; filter design; optimization;
D O I
10.1117/12.365895
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
Volume holographic associative storage in a photorefractive crystal provides an inherent mechanism to develop a multichannel correlation system for real-time human face recognition with high parallelism. Wavelet transform is introduced to improve parallelism and discrimination of the system. Parameters of the system are optimized for maximum parallelism under limitation of hardware in this paper. Two factors mainly relative to parallelism of the system, dynamic scanning scope of the reference beam and angle interval of the two-dimensional scanning setup, are analyzed. In our experiments, correlation outputs between an input human face and hundreds of face templates are obtained instantly in parallel. It can be recognized by simply identifying position of the correlation peak with highest intensity. Invariance of the system for human face recognition is also studied. A novel method to recognize an input human face of any rotation angle is proposed and testified by experiments.
引用
收藏
页码:108 / 115
页数:8
相关论文
共 12 条
[1]  
[Anonymous], APPL OPT
[2]   Shift multiplexing with spherical reference waves [J].
Barbastathis, G ;
Levene, M ;
Psaltis, D .
APPLIED OPTICS, 1996, 35 (14) :2403-2417
[3]  
BURR GW, 1994, P SOC PHOTO-OPT INS, V2297, P402, DOI 10.1117/12.187311
[4]   Multichannel wavelet correlators by the use of associative storage in a photorefractive material [J].
Feng, WY ;
Huang, GG ;
Yan, YB ;
Jin, GF ;
Wu, MX .
PHOTOREFRACTIVE MATERIALS: PHENOMENA AND RELATED APPLICATIONS II, 1998, 3554 :149-154
[5]   CORRELATION PATTERNS AND CROSS-TALK NOISE IN VOLUME HOLOGRAPHIC OPTICAL CORRELATORS [J].
GU, C ;
FU, H ;
LIEN, JR .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1995, 12 (05) :861-868
[6]   VOLUME HOLOGRAPHIC STORAGE AND RETRIEVAL OF DIGITAL DATA [J].
HEANUE, JF ;
BASHAW, MC ;
HESSELINK, L .
SCIENCE, 1994, 265 (5173) :749-752
[7]   Two-dimensional wavelet processor [J].
Ouzieli, I ;
Mendlovic, D .
APPLIED OPTICS, 1996, 35 (29) :5839-5846
[8]   OPTICAL WAVELET MATCHED-FILTER [J].
ROBERGE, D ;
SHENG, YL .
APPLIED OPTICS, 1994, 33 (23) :5287-5293
[9]   WAVELET MATCHED FILTERING USING A PHOTOREFRACTIVE CRYSTAL [J].
WEN, MY ;
YIN, SH ;
PURWARDI, P ;
YU, FTS .
OPTICS COMMUNICATIONS, 1993, 99 (5-6) :325-330
[10]   Multichannel photorefractive correlator for rotation-invariant optical pattern recognition [J].
Wen, ZQ ;
Yang, XY .
OPTICS COMMUNICATIONS, 1997, 135 (4-6) :212-216