We propose a variational approach for deblurring and impulsive noise removal in multi-channel images. A robust data fidelity measure and edge preserving regularization are employed. We consider several regularization approaches, such as Beltrami flow, Mumford-Shah and Total-Variation Mumford-Shah. The latter two methods are extended to multi-channel images and reformulated using the Γ -converge...

We propose a novel image segmentation model, called the Semi-Supervised Subspace Mumford-Shah model, which incorporates subspace clustering techniques into a Mumford-Shah model to solve texture segmentation problems. While the natural unsupervised approach to learn a feature subspace can easily be trapped in a local solution, we propose a novel semi-supervised optimization algorithm that makes ...

the activity concentrations of 235u, 232th, 226ra, 40k and 137cs in ground and surface of drinking water resources in iranian city of arak were determined by gamma ray spectrometry with ahpge detector setup, coaxial p type and 8192 channels mca. the water samples differed in radioactivity content depending on their origin and place. in the drinking water samples from aman abad, mobarak abad, an...

We give a general monotonicity formula for local minimizers of free discontinuity problems which have a critical deviation from minimality, of order d − 1. This result allows to prove partial regularity results (i.e. closure and density estimates for the jump set) for a large class of free discontinuity problems involving general energies associated to the jump set, as for example free boundary...

the safavid dynasty's government, formally of shi'ism in iran, a new style called rozeh-khaany of mourning and religious representation with poems and texts related to an event of karbala to create tekyeh, there was a mosque and endowments. these rituals to gain legitimacy in the qajar period, was followed by severe and more widespread, in this time of mourning for the social class an...