Method for enhanced display of image slices from 3-D volume image
First Claim
1. A method for rendering volume radiographic image content of a subject, the method executed at least in part on a computer and comprising:
- forming a volume image by processing a plurality of 2-D projection images of the subject, the volume image having Hounsfield values;
extracting a first image slice from the volume image;
modifying the extracted first image slice from the volume image by;
(i) defining two or more spatial frequency bands from first image slice data; and
(ii) applying one or more viewer adjustments to the first image slice data, wherein the one or more viewer adjustments condition the image data to enhance image content in at least one of the defined two or more spatial frequency bands;
generating a set of one or more display rendering parameters according to the two or more frequency bands and according to viewer adjustments made to the first image slice;
extracting a second image slice from the volume image, the second image slice having Hounsfield values;
applying the generated set of display rendering parameters to the second image slice obtained from the volume image to render an adjusted image slice; and
preserving the Hounsfield values of the second image slice by corresponding the Hounsfield values of the second image slice with the adjusted image slice;
displaying, storing, or transmitting the adjusted image slice; and
in response to a user request, displaying at least one of the preserved corresponding Hounsfield values.
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Accused Products
Abstract
A method for rendering volume radiographic image content of a subject forms a volume image. The method extracts a first image slice from the volume image, then modifies the extracted first image slice by defining two or more spatial frequency bands from the image slice data and applying one or more viewer adjustments to the image slice data, wherein the one or more viewer adjustments condition the image data to enhance image content in at least one of the defined spatial frequency bands. A set of display rendering parameters is generated according to the two or more frequency bands and according to viewer adjustments made for the first image slice. A second image slice is extracted from the volume image. The generated set of display rendering parameters is applied to the second image slice to render an adjusted image slice and the adjusted image slice is displayed.
16 Citations
11 Claims
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1. A method for rendering volume radiographic image content of a subject, the method executed at least in part on a computer and comprising:
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forming a volume image by processing a plurality of 2-D projection images of the subject, the volume image having Hounsfield values; extracting a first image slice from the volume image; modifying the extracted first image slice from the volume image by; (i) defining two or more spatial frequency bands from first image slice data; and (ii) applying one or more viewer adjustments to the first image slice data, wherein the one or more viewer adjustments condition the image data to enhance image content in at least one of the defined two or more spatial frequency bands; generating a set of one or more display rendering parameters according to the two or more frequency bands and according to viewer adjustments made to the first image slice; extracting a second image slice from the volume image, the second image slice having Hounsfield values; applying the generated set of display rendering parameters to the second image slice obtained from the volume image to render an adjusted image slice; and preserving the Hounsfield values of the second image slice by corresponding the Hounsfield values of the second image slice with the adjusted image slice; displaying, storing, or transmitting the adjusted image slice; and in response to a user request, displaying at least one of the preserved corresponding Hounsfield values. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for rendering volume radiographic image content of a subject, the method executed at least in part on a computer and comprising:
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acquiring a plurality of 2-D projection images by scanning the subject over a range of different exposure angles; processing the 2-D projection images to form a first reconstructed bone volume having enhanced bone features and a second reconstructed soft tissue volume having enhanced soft tissue features, the first and second reconstructed volumes having Hounsfield values; extracting a first 2-D image slice from the first reconstructed bone volume and a corresponding second 2-D image slice from the second reconstructed soft tissue volume, the first and second 2-D images slices having Hounsfield values; generating rendering parameters for each of the extracted first and second 2-D image slices by performing frequency decomposition on the corresponding image slice, segmenting bone from soft tissue within the corresponding image slice, and obtaining one or more viewer adjustments related to image rendering; combining the first and second 2-D image slices to generate a combined 2-D image slice using weighted values from the generated rendering parameters; preserving the Hounsfield values of the first and second 2-D image slices by corresponding the Hounsfield values of the first and second 2-D image slices with the combined 2-D image slice; displaying, storing, or transmitting the combined 2-D image slice; and
,in response to a user request, displaying at least one of the preserved, corresponding Hounsfield values. - View Dependent Claims (11)
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Specification