  Current and future radio interferometric arrays such as LOFAR and SKA are
characterized by a paradox. Their large number of receptors (up to millions)
allow theoretically unprecedented high imaging resolution. In the same time,
the ultra massive amounts of samples makes the data transfer and computational
loads (correlation and calibration) order of magnitudes too high to allow any
currently existing image reconstruction algorithm to achieve, or even approach,
the theoretical resolution. We investigate here decentralized and distributed
image reconstruction strategies which select, transfer and process only a
fraction of the total data. The loss in MSE incurred by the proposed approach
is evaluated theoretically and numerically on simple test cases.
