System and method for detection of ground glass objects and nodules
First Claim
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1. A method for detecting ground glass objects in a digitized image comprising the steps of:
- providing a digitized image comprising a plurality of intensities corresponding to a domain of points on an N-dimensional grid;
determining intensity statistics from a plurality of ground glass objects;
determining an intensity map of the distance of each point in said image from a mean intensity of said ground glass objects wherein one or more candidate ground glass objects can be identified;
determining a circularity value for each candidate ground glass object; and
calculating one or more feature values wherein said candidate ground glass object is characterized.
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Abstract
A method for detecting ground glass objects in a digitized image comprises the steps of determining intensity statistics from a plurality of ground glass objects, determining an intensity map of the distance of each point in an image from a mean intensity of said ground glass objects wherein one or more candidate ground glass objects can be identified, determining a circularity value for each candidate ground glass object, and calculating one or more feature values wherein said candidate ground glass object is characterized.
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Citations
25 Claims
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1. A method for detecting ground glass objects in a digitized image comprising the steps of:
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providing a digitized image comprising a plurality of intensities corresponding to a domain of points on an N-dimensional grid;
determining intensity statistics from a plurality of ground glass objects;
determining an intensity map of the distance of each point in said image from a mean intensity of said ground glass objects wherein one or more candidate ground glass objects can be identified;
determining a circularity value for each candidate ground glass object; and
calculating one or more feature values wherein said candidate ground glass object is characterized. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for detecting ground glass objects in a digitized image comprising the steps of:
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determining an intensity map of the distance of each pixel in an image from a mean intensity of said ground glass objects wherein one or more contiguous collections of points are identified as candidate ground glass objects;
determining a circularity value for each candidate ground glass object;
calculating one or more intensity level co-occurrence matrices for each candidate object, wherein each co-occurrence matrix is calculated for pixel pairs at a predetermined pixel pair separation distance and angular orientation; and
calculating one or more feature values from said co-occurrence matrices. - View Dependent Claims (13, 14)
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15. A program storage device readable by a computer, tangibly embodying a program of instructions executable by the computer to perform the method steps for detecting ground glass objects in a digitized image, said method comprising the steps of:
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providing a digitized image comprising a plurality of intensities corresponding to a domain of points on an N-dimensional grid;
determining intensity statistics from a plurality of ground glass objects;
determining an intensity map of the distance of each point in said image from a mean intensity of said ground glass objects wherein one or more candidate ground glass objects can be identified;
determining a circularity value for each candidate ground glass object; and
calculating one or more feature values wherein said candidate ground glass object is characterized. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification