Apparatus For Determining a Modification of a Size of an Object
First Claim
1. An apparatus for determining a modification of a size of an object (23, 24), the apparatus comprising:
- an image data set providing unit (18) for providing a first image data set (20) showing the object (23) at a first time and for providing a second image data set (21) showing the object (24) at a second time being different from the first time,a region of interest providing unit (12) for providing a first region of interest (22), in which the object (23) shown in the first image data set (20) is located, in the first image data set (20) and for providing a second region of interest (25), in which the object (24) shown in the second image data set (21) is located, in the second image data set (21),a registration unit (13) for registering the first region of interest (22) and the second region (25) of interest with respect to each other, wherein the registration unit (13) is adapted to generate a scaling value by performing at least a scaling transformation for registering the first region of interest (22) and the second region of interest (25) with respect to each other,a modification value determination unit (14) for determining a modification value, which indicates the modification of the size of the object (23, 24), depending on the generated scaling value.
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Abstract
The present invention relates to an apparatus for determining a modification of a size of an object. The apparatus comprises a registration unit (13) for registering with respect to each other a first region of interest in a first image data set showing an object at a first time and a second region of interest in a second image data set showing the object at a second time being different from the first time, wherein the registration unit is adapted to generate a scaling value by performing at least a scaling transformation for registering the first region of interest and the second region of interest with respect to each other. The apparatus further comprises a modification value determination unit (14) for determining a modification value, which indicates the modification of the size of the object, depending on the generated scaling value.
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Citations
11 Claims
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1. An apparatus for determining a modification of a size of an object (23, 24), the apparatus comprising:
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an image data set providing unit (18) for providing a first image data set (20) showing the object (23) at a first time and for providing a second image data set (21) showing the object (24) at a second time being different from the first time, a region of interest providing unit (12) for providing a first region of interest (22), in which the object (23) shown in the first image data set (20) is located, in the first image data set (20) and for providing a second region of interest (25), in which the object (24) shown in the second image data set (21) is located, in the second image data set (21), a registration unit (13) for registering the first region of interest (22) and the second region (25) of interest with respect to each other, wherein the registration unit (13) is adapted to generate a scaling value by performing at least a scaling transformation for registering the first region of interest (22) and the second region of interest (25) with respect to each other, a modification value determination unit (14) for determining a modification value, which indicates the modification of the size of the object (23, 24), depending on the generated scaling value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11)
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10. A method of determining a modification of a size of an object (23, 24), the method comprising the following steps:
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providing a first image data set (20) showing the object (23) at a first time and providing a second image data set (21) showing the object (24) at a second time being different from the first time, providing a first region of interest (22), in which the object (23) shown in the first image data set (20) is located, in the first image data set (20) and providing a second region of interest (25), in which the object (24) shown in the second image data set (21) is located, in the second image data set (21), registering the first region of interest (22) and the second region of interest (25) with respect to each other, wherein a scaling value is generated by performing at least a scaling transformation for registering the first region of interest (22) and the second region of interest (25) with respect to each other, determining a modification value, which indicates the modification of the size of the object, depending on the generated scaling value.
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Specification