Method and apparatus for three-dimensional video signals
First Claim
1. A method of processing three-dimensional video signals representing a solid subject comprising:
- radiating the subject;
receiving radiation from the subject on three axes intersecting the subject using radiation receptors to produce three planar images of the subject volume normal to the three respective radiation axes;
converting the picture elements of the three planar images into three corresponding sets of planar video pixel signals;
writing the three planar signal sets at the three radiation axes into superimposition in a three dimensional storage matrix such that coincidence of three pixels in the three respective images stores a single voxel representative of the superposition of the three pixels;
addressing voxels on a selected view angle toward the three dimensional matrix other than the angles of the three radiation axes;
reading, the addressed voxels of the selected view angle out of the matrix; and
displaying or recording a two-dimensional image of the voxels read out at the selected view angle.
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Accused Products
Abstract
A method and apparatus for processing three-dimensional video signals representing a solid subject comprises, radiating the subject, receiving radiation from the subject with receptors on three axes intersecting the subject to produce three planar images of the subject volume normal to the three respective radiation axes. The picture elements of the three planar images are converted into three corresponding sets of planar video pixel signals which are converted into voxels and written at the three radiation axes into superimposition in a three dimensional storage matrix such that coincidence of three pixels in the three respective images stores a single voxel representative of the superposition of the three pixels. The voxels in the matrix can then be addressed by a view selector at an angle other than the three original radiation axes to read the selected two dimensional view out of the matrix to a display or recorder.
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Citations
25 Claims
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1. A method of processing three-dimensional video signals representing a solid subject comprising:
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radiating the subject; receiving radiation from the subject on three axes intersecting the subject using radiation receptors to produce three planar images of the subject volume normal to the three respective radiation axes; converting the picture elements of the three planar images into three corresponding sets of planar video pixel signals; writing the three planar signal sets at the three radiation axes into superimposition in a three dimensional storage matrix such that coincidence of three pixels in the three respective images stores a single voxel representative of the superposition of the three pixels; addressing voxels on a selected view angle toward the three dimensional matrix other than the angles of the three radiation axes; reading, the addressed voxels of the selected view angle out of the matrix; and displaying or recording a two-dimensional image of the voxels read out at the selected view angle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. Electrical apparatus for processing three dimensional video signals representing a solid subject comprising:
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three receptors of radiation on three different image axes intersecting the subject at three different angles for converting the radiation to three corresponding two-dimensional video images respectively represented by three sets of pixels; a voxel generator coupled to the three receptors for producing one three-dimensional set of voxels at the three-dimensional intercept of pixels projected from the three two-dimensional pixel sets; a three-dimensional voxel matrix for storing the voxels; adjustable means connected to the voxel matrix for selecting a viewing axis scanning the three-dimensional matrix at an angle other than the radiation axis angles, and addressing and reading out voxels within the selected view; and means coupled to the matrix for displaying the addressed and read out voxels of the selected three-dimensional view in a single two-dimensional image. - View Dependent Claims (16, 17, 18, 19)
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20. Electrical apparatus for angiographic examination of a subject comprising:
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three sets of X-radiation sources and receptors for directing beams along three separate radiation axes intersecting a volume within the subject and forming three two-dimensional images of the volume; electro-optical means producing three two-dimensional sets of video signal pixels from the three images; a voxel generator coupled to the three receptors for producing one three-dimensional set of voxels corresponding to the three-dimensional intercept of pixels projected frown the three two-dimensional pixels sets; a three-dimensional matrix for storing the voxels electrically; adjustable control means connected to the matrix for selecting a view axis for scanning the three-dimensional matrix at an angle other than the radiation axis angles, and addressing and reading out voxels with in the selected view; and means coupled to the matrix for displaying the addressed and read out voxels of the selected three-dimensional view in a single two-dimensional image. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification