Incremental evolution of collective network of binary classifier for polarimetric SAR image classification

Abstract

In this paper, we propose a dedicated application of collective network of binary classifiers (CNBC) to address the problem of incremental learning, which occurs by introducing new SAR terrain classes. Furthermore, another major goal is to achieve a high classification performance over multiple SAR images even though the training data may not be entirely accurate. The CNBC in principle adopts a Divide and Conquer type approach by allocating an individual network of binary classifiers (NBCs) to discriminate each SAR terrain class among others and performing evolutionary search to find the optimal binary classifier (BC) in each NBC. Such design further allows dynamic SAR class and feature scalability in such a way that the CNBC can gradually adapt its internal topology to new features and classes with minimal effort. Experiments visually demonstrate the classification accuracy and efficiency of the proposed system over eight fully polarimetric NASA/JPL AIRSAR data sets.