Implementation of the Maximum Average Correlation Height (MACH) filter in the spatial domain for object recognition from clutter backgrounds

Gardezi, Akber, Birch, Philip, Kypraios, Ioannis, Young, Rupert and Chatwin, Chris (2010) Implementation of the Maximum Average Correlation Height (MACH) filter in the spatial domain for object recognition from clutter backgrounds. In: Automatic Target Recognition XX; Acquisition, Tracking, Pointing, and Laser Systems Technologies XXIV; and Optical Pattern Recognition XXI; Orlando, FL; 5 April 2010 through 8 April 2010, Orlando, FL, USA.

Full text not available from this repository.

Abstract

A moving space domain window is used to implement a Maximum Average Correlation Height (MACH) filter which can be locally modified depending upon its position in the input frame. This enables adaptation of the filter dependant on locally variant background clutter conditions and also enables the normalization of the filter energy levels at each step. Thus the spatial domain implementation of the MACH filter offers an advantage over its frequency domain implementation as shift invariance is not imposed upon it. The only drawback of the spatial domain implementation of the MACH filter is the amount of computational resource required for a fast implementation. Recently an optical correlator using a scanning holographic memory has been proposed by Birch et al [1] for the real-time implementation of space variant filters of this type. In this paper we describe the discrimination abilities against background clutter and tolerance to in-plane rotation, out of plane rotation and changes in scale of a MACH correlation filter implemented in the spatial domain. © 2010 SPIE.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Proceedings of SPIE - The International Society for Optical Engineering
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Depositing User: Akber Gardezi
Date Deposited: 06 Feb 2012 19:36
Last Modified: 11 Apr 2012 12:00
URI: http://sro.sussex.ac.uk/id/eprint/21475
📧 Request an update