ADAPTIVE IMAGE SEGMENTATION USING GENETIC AND HYBRID SEARCH METHODS

This paper describes an adaptive approach for the important image processing problem of image segmentation that relies on learning from experience to adapt and improve the segmentation performance. The adaptive image segmentation system incorporates a feedback loop consisting of a machine learning subsystem an image segmentation algorithm, and an evaluation component which determines segmentation quality. The machine learning component is based on genetic adaptation and uses (separately) a pure genetic algorithm (GA) and a hybrid of GA and hill climbing (HC). When the learning subsystem is based on pure genetics, the corresponding evaluation component is based on a vector of evaluation criteria For the hybrid case, the system employs a scalar evaluation measure which is a weighted combination of the different criteria Experimental results for pure genetic and hybrid search methods are presented using a representative, database of outdoor TV imagery, The multiobjective optimization demonstrates the ability of the adaptive image segmentation system to pro,ide high quality segmentation results in a minimal number of generations. The results of the hybrid method show the performance improvement over the pure GA.