Methods and systems for normalizing contrast across multiple acquisitions
AssigneeGeneral Electric Company
InventorsBrian Edward Nett, Chuang Miao
Life of this patent
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Abstract
Various methods and systems are provided for correcting contrast banding artifacts across multiple acquisitions in reconstructed images. In one embodiment, a method for computed tomography imaging comprises generating an original image comprising multiple subvolumes, segmenting the original image into different structures for each subvolume, selectively applying a mask-based correction through each area of subvolume that includes continuous structures to generate an updated image, and performing streak correction between the original image and the updated image to generate a final image. In this way, image quality may be improved without adjusting anatomical structures in an image.
Claims20
A method for imaging, comprising:
- generating an original image comprising multiple subvolumes;
- segmenting the original image into different structures for each subvolume;
- selectively applying a mask-based correction through each area of a subvolume that includes continuous structures to generate an updated image;
- and
- performing streak correction between the original image and the updated image to generate a final image.
A workflow method for medical imaging procedures, comprising:
- receiving image data from an imaging device to a computer, wherein the image data includes subvolumes corresponding to different image acquisition times;
- determining whether the image data includes contrast banding artifacts based on contrast levels of the subvolumes;
- applying an image correction algorithm to normalize the contrast levels across the subvolumes;
- and
- displaying corrected image data.
A system, comprising:
- a data storage device storing one or more routines;
- and
- a computing device configured to execute the one or more routines stored in the data storage device, wherein the one or more routines, when executed by the computing device, cause the computing device to:
- generate an original image comprising multiple subvolumes;
- segment the original image into different structures for each subvolume;
- selectively apply a mask-based correction through each area of a subvolume that includes continuous structures to generate an updated image;
- and
- perform streak correction between the original image and the updated image to generate a final image.
Dependencies are inferred from the claim text.