Essay About M. Hasan And New Weighted Reference

Weighted Reference Shifted Phase Encoded Fjtc Technique for Class Associative Target Detection
3rd International Conference on Electrical & Computer Engineering
ICECE 2004, 28-30 December 2004, Dhaka, Bangladesh
ISBN 984-32-1804-4 426
WEIGHTED REFERENCE SHIFTED PHASE ENCODED FJTC
TECHNIQUE FOR CLASS ASSOCIATIVE TARGET DETECTION
M. Fahad*, M. Hasan*, T. Husna*, Md. Rafiqul Haider* and Mohammed Nazrul Islam*
*Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and
Technology, Dhaka-1000, Bangladesh, E-mail: [email protected]
ABSTRACT
A new weighted reference based class associative
joint transform correlation technique has been
proposed for multiple target detection process.
Different channels are used for each member of the
class to get the correlation output and then the
different channel outputs are summed up to get the
final correlation output. The phase encoding and
phase-shifting principle is used to eliminate the false
alarms and other extraneous signals. Finally, a new
post processing technique is employed to enhance
the discrimination ratio between target and nontarget
objects. Simulation results are presented to
verify the efficiency of the proposed method.
1. INFORMATION
Optical pattern recognition may be broadly
classified into two categories; namely, VanderLugt
type filter-based correlation [1] and joint transform
correlation (JTC) [2]. A VanderLugt type correlator
requires a priori fabrication of the filter used in the
correlation process, whereas the JTC technique can
be operated at the video frame rates [3]. However, a
classical JTC suffers from poor discrimination,
strong zero-order peak and wide correlation width.
Among the various modifications of JTC technique,
the shifted phase-encoded fringe adjusted JTC
(SPFJTC) is found to be the superior one