Title :
Directional regularisation for constrained iterative image restoration
Author :
Lee, Sang Hwa ; Cho, Nam Ik ; Park, Jong-Il
Abstract :
Image restoration is an ill-posed inverse problem, which has introduced the regularisation method to suppress over-amplification. However, the regularisation causes the reblurring problem and does not eliminate ringing artefacts effectively. A directional regularisation approach is proposed to reduce the reblurring problem and the ringing artefacts in iterative image restoration
Keywords :
image restoration <constrained iter. image restoration, directional regularisation>; inverse problems <constrained iter. image restoration, directional regularisation>; iterative methods <constrained iter. image restoration, directional regularisation>; optical transfer function <constrained iter. image restoration, directional regularisation>; Lagrangian multiplier; constrained iterative image restoration; directional regularisation; ill-posed inverse problem; point spread function; projection operator; quadtree-decomposed blocks; reblurring problem; ringing artefacts;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20031064
