All Figures

$\begin{figure} \par\includegraphics[height=3.9cm,width=3.9cm,clip]{5836fg1a.ps}\... ...*{2mm} \includegraphics[height=3.9cm,width=3.8cm,clip]{5836fg1d.ps}\end{figure}$ Figure 1: Upper-left panel: gray level representation of the model of young binary star described in the text. Upper-right panel: the cut of the object (normalized to unit maximum value) along the direction of the binary system. Lower-left panel: representation of the ring by means of level curves (corresponding to the values 2460, 4320, 7020, and 9720; the maximum value of the ring is $1.45\times 10^4$ , while the maximum value of the binary is $5.39\times 10^9$ ). Lower-right panel: gray level representation, in a log-scale, of the image corresponding to an ideal PSF of LN, with $0^\circ$ relative parallactic angle.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=6.4cm,clip]{5836fg2a.eps}\vspace*{2mm} \par\hspace*{-2mm}\includegraphics[width=6.4cm,clip]{5836fg2b.eps}\end{figure}$ Figure 2: Upper panel: the relative rms error in the reconstruction of the ring as a function of the number of iterations in the case of OSEM (full line), TKR (dotted line) and HDR (dashed line); ideal PSFs are assumed. Lower panel: behaviour of the flux of the primary star as a function of the number of iterations in the same cases of the upper panel.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=3.9cm,clip]{5836fg3a.eps}\hspace*{0.7m... ...eps}\hspace*{0.7mm} \includegraphics[width=3.9cm,clip]{5836fg3d.eps}\end{figure}$ Figure 3: Residuals corresponding to the original object and to the reconstructed images obtained by the different methods. Upper-left panel: the exact object. Upper-right panel: the OSEM reconstruction. Lower-left panel: the TKR reconstruction. Lower-right panel: the HDR reconstruction.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=3.3cm,clip]{5836fg4a.eps}\hspace*{8mm}... ...e.eps}\hspace*{8mm} \includegraphics[width=3.3cm,clip]{5836fg4f.eps}\end{figure}$ Figure 4: Reconstruction of the level curves of the ring corresponding to the values indicated in Fig. 1. In the left column we display the best reconstructions provided by OSEM and in the right column those provided by the HDR algorithm. From top to bottom: ideal PSFs, AO-corrected PSFs with ${\it SR}= 70\%$ and AO-corrected PSFs with ${\it SR}=26\%$ .
Open with DEXTER

In the text

$\begin{figure} \par\mbox{\parbox{2.8cm}{\includegraphics[width=2.8cm,clip]{5836f... ...8mm} \parbox{4cm}{\includegraphics[width=4cm,clip]{5836fg5b.eps}} } \end{figure}$ Figure 5: Left panel: picture of the different areas of the ring where we check the accuracy of the restoration. Right panel: behaviour of the ratio between the areas A and C as a function of the number of iterations both in the case of ideal PSFs and in the case of AO-corrected PSFs ( ${\it SR} \simeq 70\%$ ).
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=4cm,clip]{5836fg6a.ps}\hspace*{0.7mm} \includegraphics[width=4cm,clip]{5836fg6b.ps}\end{figure}$ Figure 6: Examples of reconstructions provided by OSEM when different PSFs are used for convolution and deconvolution. The PSFs used to convolve the object have ${\it SR} \simeq 70\%$ while the PSFs used to deconvolve the images have ${\it SR} \simeq 62\%$ . To the left, the case where the integrated magnitude of the ring is 12.25 and to the right the case where it is 10.25.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=3.2cm,clip]{5836fg7a.eps}\hspace*{5mm}... ...c.eps}\hspace*{5mm} \includegraphics[width=3.2cm,clip]{5836fg7d.eps}\end{figure}$ Figure 7: Reconstructions of the level curves of the object with integrated magnitude of the ring 10.25. The values of the level curves are obtained from those of Fig. 1 by multiplying by a factor of 10². Different PSFs for convolution and deconvolution are used (see the text). Upper-left panel: the object. Upper-right panel: the OSEM reconstruction shown in Fig. 6. Lower-left panel: the HDR reconstruction (the values of the parameters $\eta$ and $\mu$ are indicated in the text). Lower-right panel: the HDR reconstruction obtained using the PSFs corrected by the blind method.
Open with DEXTER

In the text

$\begin{figure} \par\includegraphics[width=6.4cm,clip]{5836fg2a.eps}\vspace{2mm} \par\hspace{-2mm}\includegraphics[width=6.4cm,clip]{5836fg2b.eps}\end{figure}$	Figure 2: Upper panel: the relative rms error in the reconstruction of the ring as a function of the number of iterations in the case of OSEM (full line), TKR (dotted line) and HDR (dashed line); ideal PSFs are assumed. Lower panel: behaviour of the flux of the primary star as a function of the number of iterations in the same cases of the upper panel.
Open with DEXTER

$\begin{figure} \par\includegraphics[width=3.9cm,clip]{5836fg3a.eps}\hspace{0.7m... ...eps}\hspace{0.7mm} \includegraphics[width=3.9cm,clip]{5836fg3d.eps}\end{figure}$	Figure 3: Residuals corresponding to the original object and to the reconstructed images obtained by the different methods. Upper-left panel: the exact object. Upper-right panel: the OSEM reconstruction. Lower-left panel: the TKR reconstruction. Lower-right panel: the HDR reconstruction.
Open with DEXTER

$\begin{figure} \par\includegraphics[width=3.3cm,clip]{5836fg4a.eps}\hspace{8mm}... ...e.eps}\hspace{8mm} \includegraphics[width=3.3cm,clip]{5836fg4f.eps}\end{figure}$	Figure 4: Reconstruction of the level curves of the ring corresponding to the values indicated in Fig. 1. In the left column we display the best reconstructions provided by OSEM and in the right column those provided by the HDR algorithm. From top to bottom: ideal PSFs, AO-corrected PSFs with ${\it SR}= 70\%$ and AO-corrected PSFs with ${\it SR}=26\%$ .
Open with DEXTER

$\begin{figure} \par\mbox{\parbox{2.8cm}{\includegraphics[width=2.8cm,clip]{5836f... ...8mm} \parbox{4cm}{\includegraphics[width=4cm,clip]{5836fg5b.eps}} } \end{figure}$	Figure 5: Left panel: picture of the different areas of the ring where we check the accuracy of the restoration. Right panel: behaviour of the ratio between the areas A and C as a function of the number of iterations both in the case of ideal PSFs and in the case of AO-corrected PSFs ( ${\it SR} \simeq 70\%$ ).
Open with DEXTER

$\begin{figure} \par\includegraphics[width=4cm,clip]{5836fg6a.ps}\hspace*{0.7mm} \includegraphics[width=4cm,clip]{5836fg6b.ps}\end{figure}$	Figure 6: Examples of reconstructions provided by OSEM when different PSFs are used for convolution and deconvolution. The PSFs used to convolve the object have ${\it SR} \simeq 70\%$ while the PSFs used to deconvolve the images have ${\it SR} \simeq 62\%$ . To the left, the case where the integrated magnitude of the ring is 12.25 and to the right the case where it is 10.25.
Open with DEXTER