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Real-time 3D image registration for functional MRI

Magnetic Resonance in Medicine · 1999 · Vol. 42(6) · pp. 1014–1018
Robert W. CoxAndrzej Jesmanowicz

Abstract

Subject head movements are one of the main practical difficulties with brain functional MRI. A fast, accurate method for rotating and shifting a three-dimensional (3D) image using a shear factorization of the rotation matrix is described. Combined with gradient descent (repeated linearization) on a least squares objective function, 3D image realignment for small movements can be computed as rapidly as whole brain images can be acquired on current scanners. Magn Reson Med 42:1014-1018, 1999.

Advanced MRI Techniques and ApplicationsAdvanced Neuroimaging Techniques and ApplicationsMedical Imaging Techniques and ApplicationsArtificial intelligenceComputer scienceRotation (mathematics)Computer visionLinearizationReal-time MRIImage (mathematics)Gradient descentImage registrationPattern recognition (psychology)

MeSH terms

BrainHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingHead Movements
Citations
674
FWCI
9.83
field-weighted impact
References
15
Percentile
99%
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Citations per year
Cited by
Medical image registration
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References
Spatial registration and normalization of images
Human Brain Mapping · 1995 · 3,748 citations
Time course EPI of human brain function during task activation
Magnetic Resonance in Medicine · 1992 · 1,940 citations
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