A Histogram-Based Overcomplete ICA Algorithm

Abstract

Overcomplete blind source separation (BSS) tries to recover more sources from less sensor signals. We present a new approach based on an estimated histogram of the sensor data; we search for the points fulfilling the overcomplete Geometric Convergence Condition, which has been shown to be a limit condition of overcomplete geometric BSS. The paper concludes with an example and a comparison of various overcomplete BSS algorithms.