Methods and apparatus for artifact reduction
First Claim
Patent Images
1. A method for facilitating a reduction in image artifacts, said method comprising:
- receiving data regarding a scan of an object;
reconstructing a plurality of images using the received data to form a three-dimensional image space;
determining an orientation for a maximum intensity pixel operation;
locating the maximum intensity pixels within a plurality of ray paths in accordance with the determined orientation; and
filtering around each maximum intensity pixel along each ray path.
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Abstract
A method for facilitating a reduction in image artifacts is provided. The method includes receiving data regarding a scan of an object, reconstructing a plurality of images using the received data to form a three-dimensional image space, determining an orientation for a maximum intensity pixel operation, locating the maximum intensity pixels within a plurality of ray paths in accordance with the determined orientation, and filtering around each maximum intensity pixel along each ray path.
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Citations
28 Claims
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1. A method for facilitating a reduction in image artifacts, said method comprising:
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receiving data regarding a scan of an object;
reconstructing a plurality of images using the received data to form a three-dimensional image space;
determining an orientation for a maximum intensity pixel operation;
locating the maximum intensity pixels within a plurality of ray paths in accordance with the determined orientation; and
filtering around each maximum intensity pixel along each ray path. - View Dependent Claims (2, 3)
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4. A method for facilitating a reduction in image artifacts, said method comprising:
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receiving data regarding a scan of an object;
reconstructing a plurality of images using the received data to form a three-dimensional image space;
determining an orientation for a maximum intensity pixel operation which is at an angle relative to a reconstructed image plane; and
locating the maximum intensity pixels along a plurality of ray paths in accordance with the determined orientation. - View Dependent Claims (5, 6, 7)
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8. A method for facilitating a reduction in image artifacts, said method comprising:
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receiving data regarding a scan of an object;
reconstructing a plurality of images using the received data to form a three-dimensional image space;
calculating an aspect ratio by taking a ratio of an intensity of two projections of the images; and
filtering based on the aspect ratio. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An imaging system comprising:
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a radiation source;
a radiation detector; and
a computer operationally coupled to said radiation source and said detector, said computer configured to;
receive data regarding a scan of an object;
reconstruct a plurality of images using the received data to form a three-dimensional image space;
calculate an aspect ratio by taking a ratio of an intensity of two projections of the images; and
filter based on the aspect ratio. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A computer readable medium encoded with a program configured to instruct a computer to:
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receive data regarding a scan of an object;
reconstruct a plurality of images using the received data to form a three-dimensional image space;
calculate an aspect ratio by taking a ratio of an intensity of two projections of the images; and
filter based on the aspect ratio. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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Specification