US 10,706,594 B2 · Systems and methods for image data processing in computerized tomography

Abstract

The present disclosure relates to systems and methods for image data processing. A first correction coefficient corresponding to a first collimation width of a collimator of a scanner may be obtained. The collimator may have a collimation width being adjustable. A relationship between scattered radiation intensities and collimation widths may be obtained. A relationship between correction coefficients and collimation widths may be determined based on the first correction coefficient, the first collimation width, and the relationship between scattered radiation intensities and collimation widths. A target collimation width of the collimator may be obtained. A target correction coefficient may be determined based on the target collimation width and the relationship between correction coefficients and collimation widths.

Claims20

Dependent claims

A system, comprising:

a scanner having a collimator, a collimation width of the collimator being adjustable;
one or more non-transitory storage devices including a set of instructions for image data processing;
and
at least one processor configured to communicate with the one or more non-transitory storage devices, wherein when executing the set of instructions, the at least one processor is configured to cause the system to:
obtain image data of a first object, the image data relating to a scanning of the first object with a first collimation width of the collimator;
determine, based on the image data, a first correction coefficient corresponding to the first collimation width of the collimator;
obtain a relationship between scattered radiation intensities and collimation widths;
and
determine a relationship between correction coefficients and collimation widths based on the first correction coefficient, the first collimation width, and the relationship between scattered radiation intensities and collimation widths.

6 more elements

A computer-implemented method for image data processing, the method comprising the following operations performed by at least one processor:

obtaining, by the at least one processor, image data of a first object, the image data relating to a scanning of the first object with a first collimation width of a collimator;
determining, by the at least one processor, based on the image data, a first correction coefficient corresponding to the first collimation width of the collimator;
obtaining, by the at least one processor, a relationship between scattered radiation intensities and collimation widths;
and
determining, by the at least one processor, a relationship between correction coefficients and collimation widths based on the first correction coefficient, the first collimation width, and the relationship between scattered radiation intensities and collimation widths.

2 more elements

A non-transitory computer-readable storage medium including instructions that, when accessed by at least one processor of a system, cause the system to:

obtain image data of a first object, the image data relating to a scanning of the first object with a first collimation width of a collimator;
determine, based on the image data, a first correction coefficient corresponding to the first collimation width of the collimator;
obtain a relationship between scattered radiation intensities and collimation widths;
and
determine a relationship between correction coefficients and collimation widths based on the first correction coefficient, the first collimation width, and the relationship between scattered radiation intensities and collimation widths.

2 more elements

Dependencies are inferred from the claim text.

Systems and methods for image data processing in computerized tomography

Life of this patent

Systems and methods for image data processing in computerized tomography

Life of this patent

Abstract

Claims20