An Adaptive Hybrid Morphological Method for Designing Translation Invariant Morphological Operators

Ricardo de Andrade Araújo, Robson de Sousa

DOI: 10.14209/sbrt.2007.28202

Evento: XXV Simpósio Brasileiro de Telecomunicações (SBrT2007)

Keywords: Translation Invariant Morphological Operators Morphological Neural Networks Evolutionary Computation Hybrid Systems Image Restoration

Abstract

In this paper an adaptive hybrid morphological method is presented for designing translation invariant morphological operators via Matheron Decomposition and via Banon and Barrera Decomposition. It consists of a hybrid model composed of a Modular Morphological Neural Network (MMNN) and an evolutionary search mechanism: the adaptive Genetic Algorithm (GA) (adaptive rates in genetic operators). The proposed method searches for initial weights, architecture and number of modules in the MMNN; then each element of the adaptive GA population is trained via the Back Propagation (BP) algorithm. Also, it is presented and experimental investigation with the proposed method using a relevant application in image processing, the restoration of noisy images, where it verifies that the method proposed herein allows seamless and efficient design of translation invariant morphological operators of either increasing or nonincreasing types, and the results are discussed and compared, in terms of Noise to Signal Ratio (NSR), with the previously methods proposed in literature, showing the robustness of the proposed method.

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