Volume body renderer
First Claim
1. A computer-implemented method for identifying irregular volumes represented within volumetric input data, comprising the steps of:
- inputting one or more volume datasets comprising a multiplicity of three-dimensional cells;
establishing criteria describing properties of an irregular volume of interest;
processing each volume dataset, the processing comprising the steps of;
traversing from cell to cell of the volume dataset until a seed cell is identified having properties matching the criteria, the identified seed cell thereby belonging to an identified irregular volume;
identifying cells related to the seed cell by a predetermined relationship as belonging to the identified irregular volume; and
storing in a data structure associated with each identified cell belonging to the identified irregular volume, attribute data describing properties of the identified cell;
selecting an identified irregular volume;
transforming each cell of the irregular volume that is selected into a polyhedral voxel representation, representation including a face string having a plurality of bits, and a position string having a plurality of bits, each bit of the face string corresponding to one face of the polyhedral voxel and having a value indicating whether the face is to be displayed, the position string having a value indicating a three-dimensional spatial position of the polyhedral voxel; and
rendering the representation of each polyhedral voxel, the face string for at least one polyhedral voxel representation having a bit with a value indicating at least one face is to be displayed for an internal cell.
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Accused Products
Abstract
Irregular volumes within one or more three-dimensional volume datasets are identified and extracted in response to criteria. The processing involves automatically finding a seed voxel or seed cell that meets the criteria and thus belongs to an irregular volume of interest, and then identifying cells related to the seed cell by one or more predetermined relationships that are therefore also to be grouped into that irregular volume. Information, which can be of any suitable type, identifying each such cell as being related to other cells and belonging to an irregular volume is stored in a suitable data structure. The location or similar neighborhood information and other data describing properties or attributes of the identified cell are also stored. Because the irregular volumes are extracted and pre-processed in this manner, operations including rendering them on a display and performing Boolean and arithmetic operations on them can readily be performed.
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Citations
16 Claims
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1. A computer-implemented method for identifying irregular volumes represented within volumetric input data, comprising the steps of:
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inputting one or more volume datasets comprising a multiplicity of three-dimensional cells; establishing criteria describing properties of an irregular volume of interest; processing each volume dataset, the processing comprising the steps of; traversing from cell to cell of the volume dataset until a seed cell is identified having properties matching the criteria, the identified seed cell thereby belonging to an identified irregular volume; identifying cells related to the seed cell by a predetermined relationship as belonging to the identified irregular volume; and storing in a data structure associated with each identified cell belonging to the identified irregular volume, attribute data describing properties of the identified cell; selecting an identified irregular volume; transforming each cell of the irregular volume that is selected into a polyhedral voxel representation, representation including a face string having a plurality of bits, and a position string having a plurality of bits, each bit of the face string corresponding to one face of the polyhedral voxel and having a value indicating whether the face is to be displayed, the position string having a value indicating a three-dimensional spatial position of the polyhedral voxel; and rendering the representation of each polyhedral voxel, the face string for at least one polyhedral voxel representation having a bit with a value indicating at least one face is to be displayed for an internal cell. - View Dependent Claims (2)
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3. A computer program product for identifying irregular volumes represented within volumetric input data, comprising a non-transitory computer-usable data medium carrying thereon a:
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means for inputting one or more volume datasets comprising a multiplicity of three-dimensional cells; means for establishing criteria describing properties of an irregular volume of interest; means for processing each volume dataset, the processing comprising the steps of; traversing from cell to cell of the volume dataset until a seed cell is identified having properties matching the criteria, the identified seed cell thereby belonging to an identified irregular volume; identifying cells related to the seed cell by a predetermined relationship as belonging to the identified irregular volume; and storing in a data structure associated with each identified cell belonging to the identified irregular volume attribute data describing properties of the identified cell; means for selecting an identified irregular volume; means for transforming each cell of the irregular volume that is selected into a polyhedral voxel representation, representation including a face string having a plurality of bits, and a position string having a plurality of bits, each bit of the face string corresponding to one face of the polyhedral voxel and having a value indicating whether the face is to be displayed, the position string having a value indicating a three-dimensional spatial position of the polyhedral voxel; and means for rendering the representation of each polyhedral voxel, the face string for at least one polyhedral voxel representation having a bit with a value indicating at least one face is to be displayed for an internal cell. - View Dependent Claims (4)
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5. A method for voxel-encoding a volume dataset comprising a multiplicity of cells, comprising the steps of:
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defining a multiplicity of polyhedral voxels, each polyhedral voxel corresponding to one cell; storing a representation of each polyhedral voxel, the representation including a face string having a plurality of bits, and a position string having a having a plurality of bits, each bit of the face string corresponding to one face of the polyhedral voxel and having a value indicating whether the face is to be displayed, the position string having a value indicating a three-dimensional spatial position of the polyhedral voxel; and rendering the representation of each polyhedral voxel, the face string for at least one polyhedral voxel representation having a bit with a value indicating at least one face is to be displayed for an internal cell. - View Dependent Claims (6, 7, 8, 9, 10)
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11. A computer program product for voxel-encoding a volume dataset comprising a multiplicity of cells, comprising a non-transitory computer-usable medium carrying thereon a:
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means for defining a multiplicity of polyhedral voxels, each polyhedral voxel corresponding to one cell; means for storing a representation of each polyhedral voxel, the representation including a face string having a plurality of bits, and a position string having a plurality of bits, each bit of the face string corresponding to one face of the polyhedral voxel and having a value indicating whether the face is to be displayed, the position string having a value indicating a three-dimensional spatial position of the polyhedral voxel; and means for rendering the representation of each polyhedral voxel, the face string for at least one polyhedral voxel representation having a bit with a value indicating at least one face is to be displayed for an internal cell. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification