Hot spot detection, segmentation and identification in pet and spect images
AssigneeKoninklijke Philips Electronics N.V.
InventorsThomas Blaffert, Kirsten Meetz, Zuo Zhao
Life of this patent
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Abstract
A potential region of interest segmentation device segments an image data into regions of potential interest. From the regions of potential interest, an identifying device identifies a region of interest including an object of interest based on a set of rules. A recognizing device differentiates among the identified objects of interest and selects at least one particular object of interest.
Claims18
An apparatus comprising:
- a potential region of interest segmentation device which segments an image data into regions of potential interest, the potential region of interest segmentation device performing a watershed transform which segments the image data in a topographic fashion starting at seed points and propagating until two regions including two adjacent seed points meet;
- an identifying device which, from the regions of potential interest, identifies a region of interest including an object of interest based on a set of rules;
- and
- a recognizing device which differentiates among the identified objects of interest and selects at least one particular object of interest.
One of a PET and SPECT imaging system for performing the steps of (1) segmenting an image data into regions of potential interest, (2) from the regions of potential interest, identifying a region of interest including one or more objects of interest identified based on a set of rules, (3) differentiating among the identified objects of interest, and (4) selecting at least one particular object of interest.
An imaging method comprising:
- segmenting an image data into regions of potential interest, wherein the segmenting includes performing a watershed transform;
- from the regions of potential interest, identifying a region of interest including one or more objects of interest identified based on a set of rules;
- differentiating among the identified objects of interest;
- and
- selecting at least one particular object of interest.
An imaging method comprising:
- segmenting an image data into regions of potential interest;
- from the regions of potential interest, identifying a region of interest including one or more objects of interest identified based on a set of rules;
- differentiating among the identified objects of interest wherein the differentiating includes:
- determining principal axes of rotation in the identified object of interest,
- scanning along determined principal axes,
- counting a number of maxima points, and
- selecting the object of interest based on the count;
- and
- selecting at least one particular object of interest.
A processor programmed to perform the steps of:
- segmenting an image data into regions of potential interest;
- based on a set of rules, identifying a particular object of interest in one region of potential interest;
- fitting a pre-selected model with the identified object of interest;
- determining a long axis in the identified object of interest;
- and
- determining two short axes in the identified object of interest, the short axes extending perpendicularly to the long axis.
Dependencies are inferred from the claim text.