Method and tomography unit for carrying out an analysis of a movement of an object
First Claim
1. A method for carrying out an analysis of a movement of an object on the basis of at least two images produced with the aid of a tomography unit at consecutive instants, the method comprising:
- determining, along edges in selected image regions from in each case two images displacement vectors that form a vector field, each displacement vector describing a displacement of a local item of image information between a first image and a second image; and
calculating at least one divergence value for analyzing the movement from the vector field.
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Abstract
A method and a tomography unit are disclosed for carrying out an analysis of a movement of an object on the basis of at least two images produced with the aid of a tomography unit at consecutive instants. A) vector field, formed from displacement vectors, is determined from in each case two images and at least one divergence value is calculated for analyzing the movement from the vector field. The divergence value renders it possible in a simple way to acquire a contraction movement or expansion movement in a qualitative and quantitative fashion, the sign of the divergence value specifying the type of movement, and the absolute value specifying the magnitude of movement of the object.
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Citations
20 Claims
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1. A method for carrying out an analysis of a movement of an object on the basis of at least two images produced with the aid of a tomography unit at consecutive instants, the method comprising:
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determining, along edges in selected image regions from in each case two images displacement vectors that form a vector field, each displacement vector describing a displacement of a local item of image information between a first image and a second image; and
calculating at least one divergence value for analyzing the movement from the vector field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 17, 18)
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9. A tomography unit for carrying out an analysis of a movement of an object on the basis of at least two images produced at consecutive instants with the aid of the tomography unit, the tomography unit comprising:
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computing means for determining a vector field that is formed from displacement vectors, determinable along edges in selected image regions from in each case two images, the displacement vector describing a displacement of a local item of image information between a first image and a second image; and
evaluation means for calculating at least one divergence value from the vector field. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 19, 20)
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Specification