The Independent Component Analysis (ICA) plays very important role in
blind source separation and has many more applications in pattern
recognition. The ICA is new area for researchers in the last decade for
face recognition. There is much more scope for research using ICA for
face recognition with different methods of feature extractions and needs
to be addressed. As the promising applications of ICA is feature
extraction, where it extracts independent image bases which are not
necessarily orthogonal and it is sensitive to high order statistics. In
the task of face recognition, important information may be contained in
the high order relationship among pixels. Independent Component Analysis
(ICA) minimizes both second order and higher-order dependencies in the
input data and attempts to find the basis along with the data when
projected onto them are statistically independent. So ICA seems to be a
promising face feature extraction method.