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US 10,092,263 B2Granted
Apparatus and method for generating reprojection images for diagnostic feature extraction
AssigneesSamsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
InventorsChoong Hwan Choi, Yong Man Ro, Dae Hoe Kim, Seong Tae Kim, Eun Joon Kim
Life of this patent
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Abstract
A medical imaging apparatus includes a scanner configured to acquire projection data of an object in a plurality of directions, and a data processor configured to generate a volume of interest based on the projection data, generate a two-dimensional (2D) reprojection image by reprojecting the volume of interest in at least one direction, and extract feature information from the 2D reprojection image.
Claims19
A medical imaging apparatus comprising:
- a scanner configured to acquire projection data of an object in a plurality of directions;
- a display configured to display a sectional image generated based on the projection data;
- a processor configured to, in response to receiving an input of selecting a region of interest in the displayed sectional image, generate a volume of interest corresponding to the region of interest, generate two-dimensional (2D) reprojection images by reprojecting the volume of interest through maximum value projection in two or more directions, and control the display to display at least one of the 2D reprojection images,
- wherein the processor is further configured to extract feature information from the 2D reprojection images in which a maximum value in each of the two or more directions is extracted from voxels of the volume of interest, and
- wherein the processor is further configured to generate a feature vector by fusing the feature information extracted from the 2D reprojection images reprojected in the two or more directions, and determine whether a certain substance exists in the volume of interest based on the generated feature vector.
2 more elements
A medical imaging apparatus comprising:
- a display configured to display a sectional image generated based on projection data;
- a processor configured to, in response to receiving an input of selecting a region of interest in the displayed sectional image, generate a volume of interest corresponding to the region of interest, generate 2D reprojection images by reprojecting the volume of interest through maximum value projection in two or more directions, and control the display to display at least one of the 2D reprojection images,
- wherein the processor is further configured to extract feature information from the 2D reprojection images in which a maximum value in each of the two or more directions is extracted from voxels of the volume of interest, and
- wherein the processor is further configured to generate a feature vector by fusing the feature information extracted from the 2D reprojection images reprojected in the two or more directions, and determine whether a certain substance exists in the volume of interest based on the generated feature vector.
1 more element
A control method of a medical imaging apparatus comprising:
- displaying a sectional image generated based on projection data;
- in response to receiving an input of selecting a region of interest in the displayed sectional image, generating a volume of interest based on the projection data of an object;
- generating 2D reprojection images by reprojecting the volume of interest through maximum value projection in two or more directions and displaying at least one of the 2D reprojection images;
- extracting feature information from the 2D reprojection images in which a maximum value in each of the two or more directions is extracted from voxels of the volume of interest;
- and
- generating a feature vector by fusing the feature information extracted from the 2D reprojection images reprojected in the two or more directions and determining whether a certain substance exists in the volume of interest based on the generated feature vector.
3 more elements
Dependencies are inferred from the claim text.