Share Email Print
cover

Proceedings Paper

Displacement measurement using phase joint transform correlators
Author(s): Peng Ge; Qi Li; Hua-jun Feng; Zhi-hai Xu
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

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.

Paper Details

Date Published: 11 October 2010
PDF: 7 pages
Proc. SPIE 7656, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 76562G (11 October 2010); doi: 10.1117/12.864958
Show Author Affiliations
Peng Ge, Zhejiang Univ. (China)
Qi Li, Zhejiang Univ. (China)
Hua-jun Feng, Zhejiang Univ. (China)
Zhi-hai Xu, Zhejiang Univ. (China)


Published in SPIE Proceedings Vol. 7656:
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Yudong Zhang; Jose M. Sasian; Libin Xiang; Sandy To, Editor(s)

© SPIE. Terms of Use
Back to Top