Systems and methods for evaluating image quality
AssigneeShanghai United Imaging Healthcare Co., Ltd.
InventorYi Wang
Life of this patent
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Abstract
A method for evaluating image quality is provided. The method may include: obtaining an image, the image including a plurality of elements, each element of the plurality of elements being a pixel or voxel, each element having a gray level; determining, based on a maximum gray level of the plurality of elements, one or more thresholds for segmenting the image; determining one or more sub-images of a region of interest by segmenting, based on the one or more thresholds, the image; and determining, based on the one or more sub-images of the region of interest, a quality index for the image.
Claims20
A method implemented on at least one machine each of which has at least one processor and at least one storage device for evaluating image quality, the method comprising:
- obtaining an image;
- determining one or more sub-images of a region of interest by segmenting the image, the region of interest including one or more blood vessels;
- and
- determining, based on the one or more sub-images of the region of interest, a quality index for the image, wherein the quality index is associated with a regularity degree of the image.
A method implemented on at least one machine each of which has at least one processor and at least one storage device for evaluating image quality, the method comprising:
- obtaining an image;
- determining one or more sub-images of a region of interest by segmenting the image, the region of interest including one or more blood vessels;
- and
- determining, based on the one or more sub-images of the region of interest, a quality index for the image, wherein the quality index is associated with a sharpness degree of the image.
A method implemented on at least one machine each of which has at least one processor and at least one storage device for evaluating image quality, the method comprising:
- obtaining an image;
- determining one or more sub-images of a region of interest by segmenting the image;
- and
- determining, based on the one or more sub-images of the region of interest, a quality index for the image, wherein the quality index is associated with at least one of
- a perimeter of each connected domain of one or more connected domains in the one or more sub-images of the image,
- an area of the each connected domain,
- an edge of the each connected domain, or
- a gradient map of the each connected domain.
Dependencies are inferred from the claim text.