We propose a detection method and a removal filter for corner outliers in order to improve visual quality in highly compressed video. Corner outliers are detected using the direction of edge going through a block-corner and the properties of blocks around the block-corner. The proposed filter for removing corner outliers, which compensates the stair-shaped discontinuities around edges using the...

Free probability theory originated in the context of operator algebras, however, one of the main features of that theory is its connection with random matrices. Indeed, free probability can be considered as the theory providing concepts and notations, without relying on random matrices, for dealing with the limit N → ∞ of N ×N -random matrices. One of the basic approaches to free probability, o...

In modelling the behavior of thick-walled metal shells under compressive loads, use J2 flow theory can lead to unrealistic buckling estimates, while alternative ‘corner’ models, despite offering good predictions, have not been widely adopted for structural computations due their complexity. The present work develops a new and efficient plasticity model predicting response compressed shells. It ...

Magnetohydrodynamic (MHD) control of hypersonic laminar separation flows is investigated in this paper. A series numerical simulations over various geometry configurations, namely, a compression corner and double wedge ramp inlet, have been conducted by application an external electromagnetic field. Results show that the performance MHD flow mainly determined acceleration Lorentz force directed...

We show that an attempt to compute numerically a viscous flow in a domain with a piece-wise smooth boundary by straightforwardly applying well-tested numerical algorithms (and numerical codes based on their use, such as COMSOL Multiphysics) can lead to spurious multivaluedness and nonintegrable singularities in the distribution of the fluid’s pressure. The origin of this difficulty is that, nea...