摘要:
A method for segmenting an object in a volume image, executed at least in part on a computer, renders the volume image data to a two-dimensional display screen showing first, second, and third mutually orthogonal planes in the two-dimensional rendering. One or more operator instructions that identify a plurality of seed points on the rendered volume image are accepted. Two-dimensional coordinates of the identified seed points on the display screen are converted to three-dimensional seed-point coordinates relating to the first, second, and third mutually orthogonal planes a segmentation operation is performed on the volume image according to the converted three-dimensional seed-point coordinates. Segmentation results are displayed on the display screen, relative to the first, second, and third mutually orthogonal planes.
摘要:
A method for segmenting an object in a volume image, executed at least in part on a computer, renders the volume image data to a two-dimensional display screen showing first, second, and third mutually orthogonal planes in the two-dimensional rendering. One or more operator instructions that identify a plurality of seed points on the rendered volume image are accepted. Two-dimensional coordinates of the identified seed points on the display screen are converted to three-dimensional seed-point coordinates relating to the first, second, and third mutually orthogonal planes a segmentation operation is performed on the volume image according to the converted three-dimensional seed-point coordinates. Segmentation results are displayed on the display screen, relative to the first, second, and third mutually orthogonal planes.
摘要:
A method for processing a digital volume image receives the volume image formed as a stack of image slices, each slice containing voxels and forms a 1:1 mapping of each of the slices, in order, to a corresponding tile in a digital flat volume. The method defines, for at least one voxel in a plurality of voxels in the digital flat volume, a neighborhood that includes the at least one voxel and adjacent voxels that are within the corresponding tile of the voxel, and adjacent voxels to the at least one voxel that are within the preceding tile in the digital flat volume, and adjacent voxels to the voxel that are within the next tile in the digital flat volume. The at least one voxel is rendered according to the adjacent voxels in its defined neighborhood. The volume image having the at least one rendered voxel is displayed.
摘要:
A method for visualizing patient dentition acquires a contour image of patient dentition and segments the contour image to identify one or more segmented teeth. At least one deciduous tooth among the one or more segmented teeth is identified. A virtual model of a target dentition arrangement of the patient dentition is generated, wherein the at least one deciduous tooth is replaced by a replacement permanent tooth.
摘要:
A method for imaging the surface of a tooth, the method executed at least in part on a computer records a first set of images of the tooth, wherein each image in the first set of images is illuminated according to a pattern oriented in a first direction. A second set of images of the tooth are recorded, wherein each image in the second set of images is illuminated according to a pattern oriented in a second direction that is shifted more than 10 degrees with respect to the first direction. A first contour image is reconstructed according to the recorded first set of images and a second contour image according to the recorded second set of images. A residual image is formed as a combination of the first and second contour images. The residual image is analyzed and surface conditions of the tooth reported.
摘要:
A method for displaying a diagnostic image acquires the diagnostic digital image and applies one or more pattern recognition algorithms to the acquired diagnostic digital image, detecting at least one feature within the acquired diagnostic digital image. At least a portion of the acquired diagnostic digital image displays with a marking at the location of the at least one detected feature. At least one detected feature displays under a first set of image display settings for a first interval, then under at least a second set of image display settings for a second interval.
摘要:
A method for imaging the surface of a tooth, the method executed at least in part on a computer records a first set of images of the tooth, wherein each image in the first set of images is illuminated according to a pattern oriented in a first direction. A second set of images of the tooth are recorded, wherein each image in the second set of images is illuminated according to a pattern oriented in a second direction that is shifted more than 10 degrees with respect to the first direction. A first contour image is reconstructed according to the recorded first set of images and a second contour image according to the recorded second set of images. A residual image is formed as a combination of the first and second contour images. The residual image is analyzed and surface conditions of the tooth reported.
摘要:
A method for image linear structure detection in medical imaging. The method includes locating microcalcification (mcc) candidate spots in a mammographic image; forming candidate clusters; assigning ranks to the candidate clusters; identifying linear structures in the neighborhood where the candidate clusters reside; and altering the ranks of the candidate clusters for which linear structures have been identified in the neighborhood.
摘要:
A method for determining a location of an object in a radiographic image by segmentation of a region in the image comprises the steps of: determining a first image intensity that is characteristic of high image intensities in the region; determining a second image intensity that is characteristic of low image intensities outside of the region; and determining if a pixel is added to or removed from the region based on the similarity of the pixel's intensity to the first and second intensity.
摘要:
A system for identifying anatomical structure depicted in an in vivo image, that includes an examination bundlette having a captured in vivo image; and a gastrointestinal atlas that includes a list of individual anatomical structures and characterization data of the individual anatomical structures. A classification engine analyzes the examination bundlette and the gastrointestinal atlas to identify the anatomical structure depicted in the captured in vivo image.