Image enhancement or correction, e.g. subtraction or averaging techniques

Full Title

Arrangements or instruments for measuring magnetic variables > involving magnetic resonance > using nuclear magnetic resonance [NMR] > NMR imaging systems > Signal processing systems, e.g. using pulse sequences > Image enhancement or correction, e.g. subtraction or averaging techniques

Classification Context

Section:

PHYSICS

Class:

MEASURING; TESTING

Subclass:

MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES

Child Classifications

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• G01R 33/561 by reduction of the scanning time, i.e. fast acquiring systems, e.g. using echo-planar pulse sequences
• G01R 33/563 of moving material, e.g. flow-contrast angiography
• G01R 33/565 Correction of image distortions, e.g. due to magnetic field inhomogeneities
• G01R 33/567 gated by physiological signals