Coronary reconstruction from rotational X-ray projection sequence
AssigneeSiemens Aktiengesellschaft
InventorsYiyong Sun, Rui Liao, Luc Duong, Frank Sauer, Chenyang Xu
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Abstract
A method for three-dimensional reconstruction of a branched object from a rotational sequence of images of the branched object includes segmenting the branched object from each image of the sequence, extracting centerlines of the branched object, performing symbolic reconstruction via a stereo correspondence matching between the centerlines from different views of the sequence of images using a graph cut-based optimization, and creating a three-dimensional tomographic reconstruction of the branched object compensated for motion of the branched object between the images of the sequence.
Claims20
A computer readable medium embodying instructions executable by a processor to perform a method for three-dimensional reconstruction of a branched object from a rotational sequence of images of the branched object, the method steps comprising:
- generating a vesselness feature image for each image of the sequence by filtering each image of the sequence using a filter that identifies tubular structure;
- segmenting the branched object from each vesselness feature image using a thresholding process;
- extracting centerlines of the branched object;
- performing symbolic reconstruction via a stereo correspondence matching between the centerlines from different views of the sequence of images using a graph cut-based optimization;
- and
- creating a three-dimensional tomographic reconstruction of the branched object compensated for motion of the branched object between the images of the sequence.
A computer-implemented method for three-dimensional reconstruction of a branched object from a rotational sequence of images of the branched object comprising:
- generating a vesselness feature image for each image of the sequence by filtering each image of the sequence using a filter that identifies tubular structure;
- segmenting the branched object from each vesselness feature image of the sequence using a thresholding process;
- extracting centerlines of the branched object;
- performing symbolic reconstruction via a stereo correspondence matching between the centerlines from different views of the sequence of images using a graph cut-based optimization;
- and
- creating a three-dimensional tomographic reconstruction of the branched object compensated for motion of the branched object between the images of the sequence.
A system for three-dimensional reconstruction of a branched object from a rotational sequence of images of the branched object comprising:
- a source of the rotational sequence of images comprising views of the branched object to be reconstructed;
- a processor executing instructions embodied in a computer readable medium for three-dimensional reconstruction of the branched object from a symbolic reconstruction of the branched object in the rotational sequence of images;
- and
- an output device for display of the reconstructed branched object determined by the processor,
- wherein the instructions cause the processor to perform method steps comprising:
- generating a vesselness feature image for each image of the sequence by filtering each image of the sequence using a filter that identifies tubular structure;
- segmenting the branched object from each vesselness feature image using a thresholding process;
- extracting centerlines of the branched object;
- creating the symbolic reconstruction of the branched object via a stereo correspondence matching between the centerlines from different views of the sequence of images;
- and
- creating a three-dimensional tomographic reconstruction of the branched object compensated for motion of the branched object between the images of the sequence in the symbolic reconstruction.
Dependencies are inferred from the claim text.