. Author manuscript; available in PMC: 2024 Jun 11.

Published in final edited form as: IEEE Trans Med Imaging. 2012 Jun 6;31(11):1993–2005. doi: 10.1109/TMI.2012.2202245

TABLE I.

Summary of Notations

Notation	Description

$Y$	The intermediate slice that needs to be reconstructed
$y_{i}$	Composing patches of $Y$
$y_{i}^{u}, y_{i}^{d}$	Patches immediately superior and inferior to $y_{i}$
$Y^{r}$	The reconstructed intermediate slice at each iteration
$y_{i}^{r}$	Composing patches of $Y^{r}$
$D$	Dictionary for sparse representation
$L$	Threshold for sparse representation
$λ$	Tuning parameter between the contributions of image intensity and image feature
$β$	Parameter for controlling the global constraint