An overview of Independent Component Analysis

1. What is ICA ? Independent Component Analysis is a technique of separating signals from their linear mixes. We could assume two signals $ x_1(t) $ and $ x_2(t) $ that are a linear combination of two signals source $ s_1(t) $ and $ s_2(t) $, the relationships of $ x_n $ and $ s_n $ are shown in the following system of linear equations where $ a_{11} $, $ a_{12} $, $ a_{21} $ and…

Separation of Image Mixture using FastICA

Image separation of mixed and overlapped images is a frequent problem in computer vision (image processing). The following Matlab source code is a demonstration of image separation using FastICA algorithm based on kurtosis.