Research Article Open Access

Optimized Set of RST Moment Invariants

Khalid M. Hosny


Moment invariants are widely used in image processing, pattern recognition and computer vision. Several methods and algorithms have been proposed for fast and efficient calculation of moment's invariants where numerical approximation errors are involved in most of these methods. In this paper, an optimized set of moment invariants with respect to rotation, scaling and translation is presented. An accurate method is used for exact computation of moment invariants for gray level images. A fast algorithm is applied to accelerate the process of computation. Error analysis is presented and a comparison with other conventional methods is performed. The obtained results explain the superiority of the proposed method.

American Journal of Applied Sciences
Volume 5 No. 6, 2008, 726-735


Submitted On: 30 July 2007 Published On: 30 June 2008

How to Cite: Hosny, K. M. (2008). Optimized Set of RST Moment Invariants. American Journal of Applied Sciences, 5(6), 726-735.

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  • moment invariants
  • exact computation
  • fast algorithm
  • symmetric images