2 citations · 4 across the 8 of their papers we have counts for
8 papers
A linear phase evolution model for reduction of temporal unwrapping and field estimation errors in multi-echo GRE
Joseph Suresh Paul, Sreekanth Madhusoodhanan
This article aims at developing a model based optimization for reduction of temporal unwrapping and field estimation errors in multi-echo acquisition of Gradient Echo sequence. Usi…
Robust Multi-echo GRE Phase processing using a unity rank enforced complex exponential model
Joseph Suresh Paul, Sreekanth Madhusoodhanan
Purpose: Develop a processing scheme for Gradient Echo (GRE) phase to enable restoration of susceptibility-related (SuR) features in regions affected by imperfect phase unwrapping,…
Compressed Sensing Parallel MRI with Adaptive Shrinkage TV Regularization
Raji Susan Mathew, Joseph Suresh Paul
Compressed sensing (CS) methods in magnetic resonance imaging (MRI) offer rapid acquisition and improved image quality but require iterative reconstruction schemes with regularizat…
A MAP-MRF filter for phase-sensitive coil combination in autocalibrating partially parallel susceptibility weighted MRI
Sreekanth Madhusoodhanan, Joseph Suresh Paul
A statistical approach for combination of channel phases is developed for optimizing the Contrast-to-Noise Ratio (CNR) in Susceptibility Weighted Images (SWI) acquired using autoca…
Image enhancement in intensity projected multichannel MRI using spatially adaptive directional anisotropic diffusion
P. K. Akshara, J. S. Paul
Anisotropic Diffusion is widely used for noise reduction with simultaneous preservation of vascular structures in maximum intensity projected (MIP) angiograms. However, extension t…
Higher dimensional homodyne filtering for suppression of incidental phase artifacts in multichannel MRI
Joseph Suresh Paul, Uma Krishna Swamy Pillai
The aim of this paper is to introduce procedural steps for extension of the 1D homodyne phase correction for k-space truncation in all gradient encoding directions. Compared to the…
Voxel-wise Weighted MR Image Enhancement using an Extended Neighborhood Filter
Joseph Suresh Paul, Joshin John Mathew, Souparnika Kandoth Naroth +1
We present an edge preserving and denoising filter for enhancing the features in images, which contain an ROI having a narrow spatial extent. Typical examples include angiograms, o…
Least-Squares FIR Models of Low-Resolution MR data for Efficient Phase-Error Compensation with Simultaneous Artefact Removal
Joseph Suresh Paul, Uma Krishna Swamy Pillai, Nyjin Thomas
Signal space models in both phase-encode, and frequency-encode directions are presented for extrapolation of 2D partial kspace. Using the boxcar representation of low-resolution sp…