Image analysis method and system
AssigneeGe Healthcare Limited
InventorsPasha Razifar, Bengt Langstrom
Life of this patent
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Abstract
The invention relates to a system and method for enhancing image data obtained from a positron emission tomography (PET) scan. In various embodiments, the method comprises transforming an original image data set to provide a first modified image data set by performing a masked volume-wise principal component analysis (MVW-PCA) on the original image data set. The first modified image data set is then transformed to provide a second modified image data set by performing a masked volume-wise independent component analysis (MVW-ICA) on the first modified image data set, the second modified image data set thereby comprising enhanced image data.
Claims8
A method (200) for enhancing image data obtained from a positron emission tomography (PET) scan, the method comprising:
- transforming an original image data set to provide a first modified image data set by performing a masked volume-wise principal component analysis (MVW-PCA) (206) on the original image data set;
- transforming the first modified image data set to provide a second modified image data set by performing a masked volume-wise independent component analysis (MVW-ICA) (208) on the first modified image data set, and
- generating a new data set (210) from the second modified image data set by back-projecting the second modified image data onto a zero matrix.
A system (100) for enhancing image data obtained from a positron emission tomography (PET) scan, the system (100) comprising:
- an image acquisition module (122) operable to acquire sinogram data derived from the PET scan in order to generate an original image data set;
- and
- an image analyser (124) operable to:
- a) transform the original image data set to provide a first modified image data set by performing a masked volume-wise principal component analysis (MVW-PCA) on the original image data set;
- and b) transform the first modified image data set to provide a second modified image data set by performing a masked volume-wise independent component analysis (MVW-ICA) on the first modified image data set,
- wherein the image analyser (124) is further configured to generate a new data set from the second modified image data set by back-projecting the second modified image data onto a zero matrix.
Dependencies are inferred from the claim text.