Method for Registration and Navigation of Volumetric Scans Using Energy Profiles
AssigneeGeneral Electric Company
InventorsNavneeth Subramanian, Srikanth Suryanarayanan, Rakesh Mullick
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Abstract
A method is provided for identifying a location of a region of interest in a volumetric image scan that includes a plurality of slices of an object and wherein each slice, in turn, includes a plurality of pixels. The method includes setting a predetermined pixel intensity threshold corresponding to a particular region of interest; identifying target pixels for each slice from the plurality of pixels that exceed the predetermined pixel intensity threshold; creating an energy profile from the target pixels for each slice; and comparing the energy profile to a predefined energy profile to determine the location of the region of interest.
Claims15
A method of identifying a location of a region of interest in a volumetric image scan comprising a plurality of slices of an object and wherein each slice, in turn, comprises a plurality of pixels, the method comprising:
- setting a predetermined pixel intensity threshold corresponding to a particular region of interest;
- identifying target pixels for each slice from the plurality of pixels that exceed the predetermined pixel intensity threshold;
- creating an energy profile from the target pixels for each slice;
- and
- comparing the energy profile to a predefined energy profile to determine the location of the region of interest.
A method of image registration by matching a region of interest in a pair of volumetric image scans, comprising:
- setting a predetermined pixel intensity threshold corresponding to a particular region of interest;
- generating a first image scan comprising at least one first slice of an object, in turn, comprising a first plurality of pixels;
- identifying first target pixels from the first plurality of pixels that exceed the predetermined pixel intensity threshold;
- creating a first energy profile from the first target pixels;
- generating a second image scan comprising at least one second slice of the object, in turn, comprising a second plurality of pixels;
- identifying second target pixels from the second plurality of pixels that exceed the predetermined pixel intensity threshold;
- creating a second energy profile from the second target pixels;
- and
- comparing the first energy profile to the second energy profile to match the region of interest between the first volumetric image scan and the second volumetric image scan.
A device for identifying a location of a region of interest in a volumetric image scan comprising a plurality of slices of an object and wherein each slice, in turn, comprises a plurality of pixels, the device comprising:
- a processor, the processor being configured to:
- set a predetermined pixel intensity threshold corresponding to a particular region of interest;
- identify target pixels for each slice from the plurality of pixels that exceed the predetermined pixel intensity threshold;
- create an energy profile from the target pixels for each slice;
- and
- compare the energy profile to a predefined energy profile to determine the location of the region of interest.
A system for performing image registration by matching a region of interest in a pair of volumetric image scans, the system comprising:
- a first imaging apparatus configured to generate a first image scan comprising at least one first slice of an object, each first slice, in turn, comprising a first plurality of pixels;
- a second imaging apparatus configured to generate a second image scan comprising at least one second slice of the object, each second slice, in turn, comprising a second plurality of pixels;
- and
- a processor, the processor being configured to:
- set a predetermined pixel intensity threshold corresponding to a particular region of interest;
- identify first target pixels from the first plurality of pixels that exceed the predetermined pixel intensity threshold;
- create a first energy profile from the first target pixels;
- identify second target pixels from the second plurality of pixels that exceed the predetermined pixel intensity threshold;
- create a second energy profile from the second target pixels;
- and
- compare the first energy profile to the second energy profile to match the region of interest between the first volumetric image scan and the second volumetric image scan.
A device for identifying a location of a region of interest in a volumetric image scan comprising a plurality of slices of an object and wherein each slice, in turn, comprises a plurality of pixels, the device comprising:
- means for setting a predetermined pixel intensity threshold corresponding to a particular region of interest;
- means for identifying target pixels for each slice from the plurality of pixels that exceed the predetermined pixel intensity threshold;
- means for creating an energy profile from the target pixels for each slice;
- and
- means for comparing the energy profile to a predefined energy profile to determine the location of the region of interest.
Dependencies are inferred from the claim text.