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US 2018/0005373 A1Published application
System And Method That Expands The Use Of Polar Dynamic Programming To Segment Complex Shapes
AssigneeArizona Board of Regents on Behalf of the University of Arizona
InventorsJose Rosado-Toro, Jeffrey J. Rodriguez, Ryan Avery, Aiden Abidov
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Abstract
The present invention provides a system and method that uses polar dynamic programming PDP (PDP) method to generate a segmented image of a shape.
Claims18
A method that uses polar dynamic programming (PDP) to segment a shape comprising the steps of:
- a. establishing an extracted closed contour of a shape;
- b. growing the extracted closed contour by localizing weak sub-contours that have gradient magnitudes less than or equal to the mean gradient magnitude inside the closed-contour;
- c. for each weak sub-contour, running a PDP with a new origin located on the weak sub-contour to produce a mask;
- d. if the total length of the weak sub-contours in the mask is less than the length of the weak sub-contour that is being grown, the mask is kept, and the weak sub-contour that is being grown is closed:
- e. if the total length of the weak sub-contours in the mask is greater than the length of the weak sub-contour that is being grown, the mask is not kept, and the weak sub-contour that is being grown is closed;
- and
- f. repeating steps b-e until all the weak sub-contours have been examined and closed.
4 more elements
A system for segmenting a right ventricle comprising:
- a processor and a display;
- said processor adapted to:
- a. establish an extracted closed contour of the right ventricle;
- b. grow the extracted closed contour by localizing weak sub-contours that have gradient magnitudes less than or equal to the mean gradient magnitude inside the closed-contour;
- c. for each weak sub-contour, running polar dynamic programming (PDP) with a new origin located on the weak sub-contour to produce a mask;
- d. if the total length of the weak sub-contours in the mask is less than the length of the weak sub-contour that is being grown, the mask is kept, and the weak sub-contour that is being grown is closed;
- e. if the total length of the weak sub-contours in the mask is greater than the length of the weak sub-contour that is being grown, the mask is not kept, and the weak sub-contour that is being grown is closed;
- f. repeating steps b-e until all the weak sub-contours have been examined and closed;
- and
- said display adapted to show the right ventricle segmented into a four chamber view.
7 more elements
Dependencies are inferred from the claim text.