Based on the Radon transform, a wavelet multiscale denoising method is proposed for MR images. The approach explicitly accounts for the Rician nature of MR data. Based on noise statistics we apply the Radon transform to the original MR images and use the Gaussian noise model to process the MR sinogram image. A translation invariant wavelet transform is employed to decompose the MR 'sinogram' in...

This paper is addressing of a coupling Large-eddy simulation (LES) and RANS turbulence models with mixture fraction/probability density function as combustion model. The two have been implemented to simulate ethanol-air spray combustion. gas phase described the Eulerian approach while liquid designed using Lagrangian framework. LES/PDF obtained statistically. sub-grid scale energy equation used...

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Transmission of information over a discrete-time memoryless Rician fading channel is considered where neither the receiver nor the transmitter knows the fading coefficients. First the structure of the capacity-achieving input signals is investigated when the input is constrained to have limited peakedness. It is shown that uniform phase is optimal if there is a line of sight component and the c...

Gabor lters have been successfully applied to a broad range of image processing tasks. The present paper considers the design of a single lter to segment a two-texture image. A new e cient algorithm for Gaborlter design is presented, along with methods for estimating lter output statistics. The algorithm draws upon previous results that showed that the output of a Gaborltered texture is modeled...

Abstruct-Multiple trellis-coded modulation (MTCM) of MPSK employs separate designs, which are optimum at high SNR, for the Rayleigh fading channel and the AWGN channel, in order to meet the different design criteria for the two channels. The separate designs are no longer optimum if the channel conditions are interchanged, if the channel is Rician, or if the SNR’s are moderate. In this paper, a...