Open Access

Fig. 13.


Effect of the setting of the regularization parameters on REXPACO reconstructions. (a) SURE criterion derived from Eq. (23); (b) comparative reconstructions (first row: μ → 0, i.e., under-regularization; second row: , i.e., estimated optimal regularization; third row: , i.e., over-regularization). Two regions of interest are also displayed with a saturated colormap near the north side extremity of the disk and near the star. Data set: HR 4796A, see Sect. 3.3.1 for observing conditions.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.