Image processing device for matching images of a same portion of a body obtained by magnetic resonance and ultrasounds
First Claim
1. A device for processing data that constitute images of a portion or portions of a body comprising:
- processing means for processing first data representative of elementary parts of an image or images obtained by magnetic resonance in a region of a body and second data representative of elementary parts of an image or images obtained by ultrasound in a portion of said region, said processing means configured toi) construct first and second maps of a probability of the elementary parts belonging to structures of interest in said portion of the region, as a function of at least intensities associated therewith and defined by the first and second data, respectively,ii) estimate a transformation which makes it possible to move from one of said first and second maps to the other, while maximising, for each of the elementary parts, a joint probability that said each elementary part belongs to the same structure of interest, andiii) register the structures of interest of one of the first and second maps relative to the structures of interest of the other map, by said transformation.
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Accused Products
Abstract
A device for processing of data including images of a portion of a body includes processing means capable of processing first data representative of elementary portions of an image obtained by magnetic resonance in a region of the body and second data representative of elementary portions of images obtained by ultrasounds in a portion of that region, by performing: i) generating first and second maps of the probability that the elementary portions belong to structures of interest of the portion of the region based at least on the intensities associated thereto and respectively defined by the first and second data; ii) estimating a conversion for shifting from one of the first and second maps to the other while maximizing for each of their elementary portion the joined probability that it belongs to a same structure of interest; and iii) resetting the structures of interest of one of the first and second maps relative to those of the other by the conversion.
17 Citations
13 Claims
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1. A device for processing data that constitute images of a portion or portions of a body comprising:
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processing means for processing first data representative of elementary parts of an image or images obtained by magnetic resonance in a region of a body and second data representative of elementary parts of an image or images obtained by ultrasound in a portion of said region, said processing means configured to i) construct first and second maps of a probability of the elementary parts belonging to structures of interest in said portion of the region, as a function of at least intensities associated therewith and defined by the first and second data, respectively, ii) estimate a transformation which makes it possible to move from one of said first and second maps to the other, while maximising, for each of the elementary parts, a joint probability that said each elementary part belongs to the same structure of interest, and iii) register the structures of interest of one of the first and second maps relative to the structures of interest of the other map, by said transformation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification