24S Lung Defense, Injury and Repair Mechanisms of lung microvascular injury. Ann New York Acad Sci 1982; 384:319-31 4 Malik AR, van der Zee H. Lung vascular permeability following progressive pulmonary microembolization. J Appi Physiol 1978; 45:590-97 5 Kaplan A?, Silverberg M, Dunn JT, Ghebrehiwet B. In: Kushner I, Volankis JE, Gewurz H, eds, C-reactive protein and the plasma protein response ...

Image data restoration by diffusion equation is now a well established approach since the pioneering work of Perona and Malik (Perona & Malik, 1990). Originally, image diffusion consists in a convolution by a Gaussian kernel which introduces a scale dimension related to the standard deviation of the Gaussian kernel t 2 = σ . This convolution is equivalent to solve the following linear diffusion...

We study a time-delay regularization of the anisotropic diffusion model for image denoising of Perona and Malik [IEEE Trans. Pattern Anal. Mach. Intell 12 (1990) 629–639], which has been proposed by Nitzberg and Shiota [IEEE Trans. Pattern Anal. Mach. Intell 14 (1998) 826–835]. In the two-dimensional case, we show the convergence of a numerical approximation and the existence of a weak solution...

Among various kinds of image denoising methods, the Perona–Malik model is a representative Partial Differential Equation based (PDE-based) algorithm which effectively removes the noise as well as having edge enhancement simultaneously through anisotropic diffusion controlled by the diffusion coefficient. However, the unstable behavior of the Perona–Malik model introduces staircasing artifacts i...

I enjoyed reading the article by Malik et al titled ‘Efficacy of sutureless and glue-free limbal conjunctival auto-graft for primary pterygium surgery’ published in the Nepalese Journal of Ophthalmology (Malik et al, 2012). The authors highlighted an important technique of primary pterygium surgery without application of sutures or bio-fibrin glue. This is, of course, a very challenging procedu...

We are concerned with a wavelet–based treatment of nonlinear diffusion equations in the context of image processing. In particular, we focus on the Perona– Malik model as a suitable instrument for smoothing images while preserving edges. We are not exploring a complete new method of solving the Perona– Malik equation but, inspired by Weickert et.al., we develop a new variant, based on wavelet t...

A new synergetic model based on a pulse neural network and the Perona-Malik anisotropic diffusion algorithm is introduced. The proposed model was developed because of the failure of conventional edge detectors to perform the extraction of geometric structures from low contrast edges and noisy assumed uniform regions. The synergetic model is a variation of the Perona-Malik algorithm that incorpo...

Kessell, A., McNair, D., Munday, J., Savory, R., Halliday, C., Malik, R. (2017). Successful treatment of multifocal pedal Prototheca wickerhamii infection in a feline immunodeficiency viruspositive cat with multiple Bowenoid in situ carcinomas containing papillomaviral DNA sequences. Journal of Feline Medicine and Surgery Open Reports. [More ...