Highly constrained image reconstruction method
First Claim
Patent Images
1. A method for producing an image of a subject positioned in a field of view (FOV) of an imaging system, the steps comprising:
- a) acquiring with the imaging system a plurality of views of the subject positioned in the FOV;
b) producing an image data set from views acquired in step a);
c) producing a composite image by combining views acquired in step a), wherein the views combined to produce the composite image includes the views used to produce the image data set and additional acquired views; and
d) reconstructing an image of the subject by normalizing the image data set with information derived from the composite image and by multiplying the normalized result with the composite image.
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Abstract
An image reconstruction method includes reconstructing a composite image of a subject using a conventional reconstruction method. The composite image employs the best information available regarding the subject of the scan and this information is used to constrain the reconstruction of highly undersampled image frames. An image frame is reconstructed using limited acquired data and image quality is improved using a priori information of the subject by weighting pixel values therein by values of corresponding pixels in the composite image.
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Citations
43 Claims
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1. A method for producing an image of a subject positioned in a field of view (FOV) of an imaging system, the steps comprising:
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a) acquiring with the imaging system a plurality of views of the subject positioned in the FOV; b) producing an image data set from views acquired in step a); c) producing a composite image by combining views acquired in step a), wherein the views combined to produce the composite image includes the views used to produce the image data set and additional acquired views; and d) reconstructing an image of the subject by normalizing the image data set with information derived from the composite image and by multiplying the normalized result with the composite image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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Specification