Method for generation of synthetic mammograms from tomosynthesis data
AssigneeKoninklijke Philips N.V.
InventorsHanno Heyke Homann, Klaus Erhard
Life of this patent
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Abstract
A method and related apparatus (VS) for synthesizing a projection image (S), in particular for use in mammography. It is proposed to compute a weight function from one image volume (V1) and is then used to implement a weighted forward projection through another image volume block to compute a synthesized projection image (S) across block (V2).
Claims14
An image processing method for forming a projection image, comprising:
- based on a first image, which is obtained from a first set of data acquired by a tomographic imaging system, computing a weight-function computed by computing any or a combination of the following measures:
- an information theoretic quantity, an edge measure quantity, an intensity measure quantity;
- based on at least a second image, which is obtained from a second set of data acquired by a tomographic imaging system, forward projecting across the second image, along a desired projection direction, to produce a projection image, wherein the first or the second image is a tomosynthesis volume and the projection image is a synthetic image, wherein the forward projection is weighted as per said weight function, and wherein the weight function is re-sampled to match the sampling of the second image by applying an interpolation scheme.
A non-transitory computer readable medium having stored thereon a program element for controlling an apparatus, which program element, when executed by a processing unit, is adapted to perform elements comprising:
- based on a first image, which is obtained from a first set of data acquired by a tomographic imaging system, computing a weight-function computed by computing any or a combination of the following measures:
- an information theoretic quantity, an edge measure quantity, an intensity measure quantity;
- based on at least a second image, which is obtained from a second set of data acquired by a tomographic imaging system, forward projecting across the second image, along a desired projection direction, to produce a projection image, wherein the first or the second image is a tomosynthesis volume and the projection image is a synthetic image, wherein the forward projection is weighted as per said weight function, and wherein the weight function is re-sampled to match the sampling of the second image by applying an interpolation scheme.
Dependencies are inferred from the claim text.