Valur T. Olafsson

According to our database, Valur T. Olafsson authored at least 8 papers between 2005 and 2018.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2018

Fast Spatial Resolution Analysis of Quadratic Penalized Least-Squares Image Reconstruction With Separate Real and Imaginary Roughness Penalty: Application to fMRI.

Valur T. Olafsson, Douglas C. Noll, Jeffrey A. Fessler

IEEE Trans. Medical Imaging, 2018

2015

Enhanced identification of BOLD-like components with multi-echo simultaneous multi-slice (MESMS) fMRI and multi-echo ICA.

Valur T. Olafsson, Prantik Kundu, Eric C. Wong, Peter A. Bandettini, Thomas T. Liu

NeuroImage, 2015

2013

The amplitude of the resting-state fMRI global signal is related to EEG vigilance measures.

Chi Wah Wong, Valur T. Olafsson, Omer Tal, Thomas T. Liu

NeuroImage, 2013

2012

Anti-correlated networks, global signal regression, and the effects of caffeine in resting-state functional MRI.

Chi Wah Wong, Valur T. Olafsson, Omer Tal, Thomas T. Liu

NeuroImage, 2012

2008

Fast Joint Reconstruction of Dynamic R_2^* and Field Maps in Functional MRI.

Valur T. Olafsson, Douglas C. Noll, Jeffrey A. Fessler

IEEE Trans. Medical Imaging, 2008

Regularized Field Map Estimation in MRI.

Amanda K. Funai, Jeffrey A. Fessler, Desmond Teck Beng Yeo, Valur T. Olafsson, Douglas C. Noll

IEEE Trans. Medical Imaging, 2008

2006

Spatial resolution analysis of iterative image reconstruction with separate regularization of real and imaginary parts.

Valur T. Olafsson, Jeffrey A. Fessler, Douglas C. Noll

Proceedings of the 2006 IEEE International Symposium on Biomedical Imaging: From Nano to Macro, 2006

2005

Toeplitz-based iterative image reconstruction for MRI with correction for magnetic field inhomogeneity.

Jeffrey A. Fessler, Sangwoo Lee, Valur T. Olafsson, Hugo R. Shi, Douglas C. Noll

IEEE Trans. Signal Process., 2005