Displacement measurement using phase joint transform correlators

被引：0

作者：

Ge Peng ^{[1
]}

Li Qi ^{[1
]}

Feng Hua-jun ^{[1
]}

Xu Zhi-hai ^{[1
]}

机构：

[1] Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Zhejiang, Peoples R China

来源：

5TH INTERNATIONAL SYMPOSIUM ON ADVANCED OPTICAL MANUFACTURING AND TESTING TECHNOLOGIES: OPTICAL TEST AND MEASUREMENT TECHNOLOGY AND EQUIPMENT | 2010年 / 7656卷

关键词：

Image processing; image stabilization; displacement measurement; joint transform correlator; phase spatial light modulator;

D O I：

10.1117/12.864958

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Since joint transform correlators based on amplitude light modulator have poor light efficiency and low cross-correlation peak, a displacement measurement method based on spatial light modulator is proposed. After the input images were coded by phase spatial light modulator, corresponding displacement between the adjacent two pictures could be detected through the joint transform correlator. Experiments were carried out with under-exposed images. The experimental results showed that phase joint transform correlators had better discrimination. The proposed technique is very effective for motion detection under circumstances of low illumination.

引用

页数：7

共 50 条

[31] Generalized joint fractional Fourier transform correlators: a compact approach
Kuo, CJ
Luo, Y
APPLIED OPTICS, 1998, 37 (35): : 8270 - 8276
[32] CHIRP ENCODED JOINT TRANSFORM CORRELATORS WITH INPUT SCALE SEARCH
TANG, Q
ZHANG, GS
OPTICS COMMUNICATIONS, 1994, 107 (1-2) : 23 - 27
[33] A new encoding method for correlation filters in joint transform correlators
Noharet, B
Loupias, M
Hey, R
Sjoberg, H
OPTICS IN COMPUTING 98, 1998, 3490 : 211 - 214
[34] A-PRIORI AND ADAPTIVE WIENER FILTERING WITH JOINT TRANSFORM CORRELATORS
INBAR, H
MAROM, E
OPTICS LETTERS, 1995, 20 (09) : 1050 - 1052
[35] Cross-correlation peak optimization on joint transform correlators
Chen, CL
Fang, JS
OPTICS COMMUNICATIONS, 2000, 178 (4-6) : 315 - 322
[36] Minimum-variance nonzero order joint transform correlators
Chen, CL
OPTICS COMMUNICATIONS, 2000, 182 (1-3) : 91 - 94
[37] BINARY ENCODING OF GRAY SCALE NONLINEAR JOINT TRANSFORM CORRELATORS
JAVIDI, B
TANG, Q
APPLIED OPTICS, 1991, 30 (11): : 1321 - 1325
[38] Experiments for nonlinear joint-transform correlators (scientific note)
Proc Natl Sci Counc Repub China Part A Phys Sci Eng, 6 (632):
[39] Illumination sensitivity of joint transform correlators using differential processing: computer simulation and experimental studies
Pati, GS
Singh, K
OPTICS COMMUNICATIONS, 1998, 147 (1-3) : 26 - 32
[40] Synthetic aperture radar image recognition using real-valued joint transform correlators
Fang, JS
Chen, CL
CLEO(R)/PACIFIC RIM 2001, VOL II, TECHNICAL DIGEST, 2001, : 264 - 265

← 1 2 3 4 5 →