Segmentation of large objects from multiple three-dimensional views
First Claim
1. An ultrasound imaging system for inspecting an object in a volume, the ultrasound imaging system comprising:
- an ultrasound image acquisition probe for acquiring three-dimensional ultrasound images of a volume, wherein the ultrasound image acquisition probe comprises a tracking device for tracking a position of the ultrasound image acquisition probe and providing respective viewpoint positions of the three-dimensional ultrasound images, andan image processor configured to;
receive a plurality of three-dimensional ultrasound images and the respective viewpoint positions of the plurality of three-dimensional ultrasound images;
simultaneously segment an object out of the plurality of three-dimensional ultrasound images by minimizing an energy term of a space transformation of the object, wherein the energy term is a function of a regularization of the space transformation;
register, concurrently with segmenting the object, the plurality of three-dimensional ultrasound images with one another; and
provide display data corresponding to an image of the three-dimensional ultrasound images aligned based on segmenting the object and registering the plurality of three-dimensional ultrasound images.
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Abstract
The present invention relates to an ultrasound imaging system (10) for inspecting an object (33) in a volume (32). The ultrasound imaging system comprises an ultrasound image acquisition probe (14) for acquiring three-dimensional ultrasound images and providing three-dimensional ultrasound image data, comprising a tracking device (25, 27) for tracking a position of the ultrasound image acquisition probe (14) and providing a viewpoint position (128, 130) of the three-dimensional ultrasound images. By this, an improved initialization and improved co-registration and co-segmentation is enabled by providing a plurality of three-dimensional ultrasound images and their respective viewpoint positions (128, 130), and to conduct a segmentation (80) of the object (33) simultaneously out of the plurality of three-dimensional ultrasound images and taking into account the viewpoint positions (128, 130).
21 Citations
17 Claims
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1. An ultrasound imaging system for inspecting an object in a volume, the ultrasound imaging system comprising:
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an ultrasound image acquisition probe for acquiring three-dimensional ultrasound images of a volume, wherein the ultrasound image acquisition probe comprises a tracking device for tracking a position of the ultrasound image acquisition probe and providing respective viewpoint positions of the three-dimensional ultrasound images, and an image processor configured to; receive a plurality of three-dimensional ultrasound images and the respective viewpoint positions of the plurality of three-dimensional ultrasound images; simultaneously segment an object out of the plurality of three-dimensional ultrasound images by minimizing an energy term of a space transformation of the object, wherein the energy term is a function of a regularization of the space transformation; register, concurrently with segmenting the object, the plurality of three-dimensional ultrasound images with one another; and provide display data corresponding to an image of the three-dimensional ultrasound images aligned based on segmenting the object and registering the plurality of three-dimensional ultrasound images. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for providing an ultrasound image of an object in a volume, the method comprising:
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providing ultrasound image data comprising a plurality of three-dimensional ultrasound images of the volume and viewpoint positions of each three-dimensional ultrasound image of the plurality of three-dimensional ultrasound images, processing the ultrasound image data to; segment the object out of a first ultrasound image of the plurality of three-dimensional ultrasound images, and simultaneously segment the object out of at least one further ultrasound image of the plurality of three-dimensional ultrasound images, by selecting an initial geometric shape approximate in shape to the object, deforming, based on a space transformation, the initial geometric shape to match a shape of the object, wherein an energy term of the space transformation is minimized, wherein the energy term is a function of a regularization of the space transformation, and concurrently, in parallel with segmenting the object out of the first ultrasound image and the further ultrasound image, register the first ultrasound image with the further ultrasound image to produce a segmented and registered ultrasound image, and displaying the segmented and registered ultrasound image. - View Dependent Claims (15, 16, 17)
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Specification