Abstract: Among other things, one or more techniques and/or systems for generating a three-dimensional combined image is provided. A three-dimensional test image of a test item is combined with a three-dimensional article image of an article that is undergoing a radiation examination to generate the three-dimensional combined image. A first selection region of the three-dimensional article image is selected. The three-dimensional test image of the test item is inserted within the first selection region. Although the test item is not actually comprised within the article under examination, the three-dimensional combined image is intended to cause the test item to appear to be comprised within the article.

Abstract: Among other things, one or more techniques and/or systems for generating a three-dimensional combined image is provided. A three-dimensional test image of a test item is combined with a three-dimensional article image of an article that is undergoing a radiation examination to generate the three-dimensional combined image. A first selection region of the three-dimensional article image is selected. The three-dimensional test image of the test item is inserted within the first selection region. Although the test item is not actually comprised within the article under examination, the three-dimensional combined image is intended to cause the test item to appear to be comprised within the article.

Abstract: A method includes generating a real-time ultrasound image of anatomy of interest. At least a sub-portion of the anatomy of interest is deformed from an initial location to a different location by pressure applied by an external force. The method further includes obtaining a 2-D slice, which corresponds to a same plane as the real-time ultrasound image, from 3-D reference image data, wherein a corresponding sub-portion is at the initial location. The method further includes determining displacement fields for the sub-portion from the sub-portion, the corresponding sub-portion and other anatomy not-deformed in the real-time ultrasound image and the 3-D reference image data. The method further includes deforming the 3-D reference image data using the displacement fields, which creates deformed 3-D reference image data based on the different location.

Abstract: A volume of an object is extracted from a three-dimensional image to generate a three-dimensional object image, where the three-dimensional object image represents the object but little to no other aspects of the three-dimensional image. The three-dimensional image is yielded from an examination in which the object, such as a suitcase, is situated within a volume, such as a luggage bin, that may contain other aspects or objects that are not of interest, such as sidewalls of the luggage bin. The three-dimensional image is projected to generate a two-dimensional image, and a two-dimensional boundary of the object is defined, where the two-dimensional boundary excludes or cuts off at least some of the uninteresting aspects. In some embodiments, the two-dimensional boundary is reprojected over the three-dimensional image to generate a three-dimensional boundary, and voxels comprised within the three-dimensional boundary are extracted to generate the three-dimensional object image.

Abstract: In an approach to generating a synthetic three-dimensional (3D) X-ray volume, a first bag image of the plurality of bag images that includes an associated bag subvolume greater than a volume of a threat represented in a first threat image of the plurality of threat images is selected. An image is created based on inserting the threat of the first threat image into the associated bag subvolume of the first bag image.

Abstract: A method includes generating a real-time ultrasound image of anatomy of interest. At least a sub-portion of the anatomy of interest is deformed from an initial location to a different location by pressure applied by an external force. The method further includes obtaining a 2-D slice, which corresponds to a same plane as the real-time ultrasound image, from 3-D reference image data, wherein a corresponding sub-portion is at the initial location. The method further includes determining displacement fields for the sub-portion from the sub-portion, the corresponding sub-portion and other anatomy not-deformed in the real-time ultrasound image and the 3-D reference image data. The method further includes deforming the 3-D reference image data using the displacement fields, which creates deformed 3-D reference image data based on the different location.

Abstract: Among other things, one or more techniques and/or systems for generating a three-dimensional combined image is provided. A three-dimensional test image of a test item is combined with a three-dimensional article image of an article that is undergoing a radiation examination to generate the three-dimensional combined image. A first selection region of the three-dimensional article image is selected. The three-dimensional test image of the test item is inserted within the first selection region. Although the test item is not actually comprised within the article under examination, the three-dimensional combined image is intended to cause the test item to appear to be comprised within the article.

Abstract: Among other things, one or more techniques and/or systems for generating a three-dimensional combined image is provided. A three-dimensional test image of a test item is combined with a three-dimensional article image of an article that is undergoing a radiation examination to generate the three-dimensional combined image. A first selection region of the three-dimensional article image is selected. The three-dimensional test image of the test item is inserted within the first selection region. Although the test item is not actually comprised within the article under examination, the three-dimensional combined image is intended to cause the test item to appear to be comprised within the article.

Abstract: Among other things, one or more techniques and/or systems for generating a three-dimensional combined image is provided. A three-dimensional test image of a test item is combined with a three-dimensional article image of an article that is undergoing a radiation examination to generate the three-dimensional combined image. A first selection region of the three-dimensional article image is selected. The three-dimensional test image of the test item is inserted within the first selection region. Although the test item is not actually comprised within the article under examination, the three-dimensional combined image is intended to cause the test item to appear to be comprised within the article.

Abstract: A method includes obtaining a real-time 2-D B-mode image of anatomy of interest in a region of interest. The real-time 2-D B-mode image is generated with ultrasound echoes received by transducer elements (106) of a transducer array (104). The method further includes segmenting one or more anatomical features from the real-time 2-D B-mode image, obtaining 2-D slices of anatomically segmented 3-D navigation image data for the same region of interest, and matching the real-time 2-D B-mode image to at least a sub-set of the 2-D slices based on the segmented anatomical features. The method further includes identifying a 2-D slice of the anatomically segmented 3-D navigation image data that matches the real-time 2-D B-mode image based on the matching, and identifying at least one of a location and an orientation of the transducer array relative to the anatomy based on the match.

Abstract: Among other things, one or more techniques and/or systems for generating a three-dimensional combined image is provided. A three-dimensional test image of a test item is combined with a three-dimensional article image of an article that is undergoing a radiation examination to generate the three-dimensional combined image. A first selection region of the three-dimensional article image is selected. The three-dimensional test image of the test item is inserted within the first selection region. Although the test item is not actually comprised within the article under examination, the three-dimensional combined image is intended to cause the test item to appear to be comprised within the article.

Abstract: A method includes free hand rotating or translating a first transducer array by rotating or translating the probe (102) about or along a longitudinal axis (206) of the probe through a plurality of angles or linear displacements in a cavity, moving a first imaging plane through an extent of a structure of interest. The method further includes transmitting signals and receiving echoes with the first transducer array concurrently with the rotating or the translating, and generating two-dimensional images of the structure of interest with the received echo for the plurality of the angles or the linear displacements. The method further includes identifying the plurality of the angles or the linear displacements based on the generated images and secondary information, aligning the two-dimensional images based on the identified plurality of the angles or the linear displacements, and combining the aligned two-dimensional images to construct a three-dimensional volume of the structure of interest.

Abstract: A method includes obtaining a 3-D volume of anatomy including at least the structure of interest. The method further includes acquiring, with an array of an ultrasound probe, a real-time 2-D ultrasound image of the structure of interest in a cavity parallel to a longitudinal axis of the ultrasound probe. The method further includes calculating a metric from a 2-D plane extracted from the 3D volume and the real-time 2-D ultrasound sagittal image. The metric identifies a plane, from sagittal planes of the 3D volume, and a position within the plane, that best fits the real-time 2-D ultrasound sagittal image. The method further includes identifying a current location of the ultrasound probe with respect to the anatomy based on the identified position.

Abstract: A method includes obtaining first 3D imaging data for a volume of interest. The first 3D imaging data includes structural imaging data and a target tissue of interest. The method further includes obtaining 2D imaging data. The 2D imaging data includes structural imaging data for a plane of the volume of interest. The plane includes at least three fiducial markers of a set of fiducial markers. The method further includes locating a plane, including location and orientation, in the first 3D imaging data that corresponds to the plane of the 2D imaging data by matching the at least three fiducial markers with corresponding fiducial markers identified in the first 3D imaging data and using the map. The method further includes visually displaying the first 3D imaging data with the 2D imaging data superimposed over at the corresponding plane located in the first 3D imaging data.

Abstract: Among other things, one or more techniques and/or systems for generating a three-dimensional combined image is provided. A three-dimensional test image of a test item is combined with a three-dimensional article image of an article that is undergoing a radiation examination to generate the three-dimensional combined image. A first selection region of the three-dimensional article image is selected. The three-dimensional test image of the test item is inserted within the first selection region. Although the test item is not actually comprised within the article under examination, the three-dimensional combined image is intended to cause the test item to appear to be comprised within the article.

Abstract: Among other things, one or more techniques and/or systems are described for correcting projection data generated from a computed tomography (CT) examination of an object and/or for computing or updating a CT value of the object from the projection data. An image generator is configured to generate a CT image of an object under examination. Using this CT image, a set of actions are performed to correct projection data from which the CT image was generated and/or to update a CT value of one or more voxels within the CT image. In this way, the projection data and/or CT image is adjusted to reduce image artifacts and/or otherwise improve image quality and/or object detection.

Abstract: A volume of an object is extracted from a three-dimensional image to generate a three-dimensional object image, where the three-dimensional object image represents the object but little to no other aspects of the three-dimensional image. The three-dimensional image is yielded from an examination in which the object, such as a suitcase, is situated within a volume, such as a luggage bin, that may contain other aspects or objects that are not of interest, such as sidewalls of the luggage bin. The three-dimensional image is projected to generate a two-dimensional image, and a two-dimensional boundary of the object is defined, where the two-dimensional boundary excludes or cuts off at least some of the uninteresting aspects. In some embodiments, the two-dimensional boundary is reprojected over the three-dimensional image to generate a three-dimensional boundary, and voxels comprised within the three-dimensional boundary are extracted to generate the three-dimensional object image.

Abstract: A method includes generating a real-time ultrasound image of anatomy of interest. At least a sub-portion of the anatomy of interest is deformed from an initial location to a different location by pressure applied by an external force. The method further includes obtaining a 2-D slice, which corresponds to a same plane as the real-time ultrasound image, from 3-D reference image data, wherein a corresponding sub-portion is at the initial location. The method further includes determining displacement fields for the sub-portion from the sub-portion, the corresponding sub-portion and other anatomy not-deformed in the real-time ultrasound image and the 3-D reference image data. The method further includes deforming the 3-D reference image data using the displacement fields, which creates deformed 3-D reference image data based on the different location.

Abstract: A method includes obtaining first 3D imaging data for a volume of interest. The first 3D imaging data includes structural imaging data and a target tissue of interest. The method further includes obtaining 2D imaging data. The 2D imaging data includes structural imaging data for a plane of the volume of interest. The plane includes at least three fiducial markers of a set of fiducial markers. The method further includes locating a plane, including location and orientation, in the first 3D imaging data that corresponds to the plane of the 2D imaging data by matching the at least three fiducial markers with corresponding fiducial markers identified in the first 3D imaging data and using the map. The method further includes visually displaying the first 3D imaging data with the 2D imaging data superimposed over at the corresponding plane located in the first 3D imaging data.

Abstract: Among other things, one or more techniques and/or systems are described for correcting projection data generated from a computed tomography (CT) examination of an object and/or for computing or updating a CT value of the object from the projection data. An image generator is configured to generate a CT image of an object under examination. Using this CT image, a set of actions are performed to correct projection data from which the CT image was generated and/or to update a CT value of one or more voxels within the CT image. In this way, the projection data and/or CT image is adjusted to reduce image artifacts and/or otherwise improve image quality and/or object detection.