Features
From FarsightWiki
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(New page: == Intrinsic Features == These features can be calculated with two input images (Data Image and Label Image). They are most commonly used for blob-like regions, such as nuclei. 1. Vo...) |
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These features can be calculated with two input images (Data Image and Label Image). | These features can be calculated with two input images (Data Image and Label Image). | ||
They are most commonly used for blob-like regions, such as nuclei. | They are most commonly used for blob-like regions, such as nuclei. | ||
Revision as of 18:22, 24 March 2009
Features
These features can be calculated with two input images (Data Image and Label Image). They are most commonly used for blob-like regions, such as nuclei.
1. Volume - number of voxels in the object (Dirk) 2. Integrated Intensity - sum of the intensities of all voxels in the object (Dirk) 3. Eccentricity - ratio of the distance between the foci to the length of the major axis (2D?) (Dirk) 4. Elongation - major axis length over minus axis length (2D?) (Dirk) 5. Orientation - angle between major axis and origin (2D) (Dirk) 6. Bounding Box Volume - number of voxels in bounding box of object (Dirk) 7. Sum - same as integrated intensity (ITK statistics) 8. Mean - average intensity of voxels in the object (ITK statistics) 9. Median - middle intensity of voxels in the object (ITK statistics) 10. Minimum - minimum intensity of voxels in the object (ITK statistics) 11. Maximum - maximum intensity of voxels in the object (ITK statistics) 12. Sigma - standard deviation of intensity of voxels in the object (ITK statistics) 13. Variance - variance of intensity of voxels in the object (ITK statistics) 14. Radius Variation - standard deviation of distance from surface voxels to centroid (Isaac) 15. Skew - skew of the normalized intensity histogram (Isaac) (See Supplement B2) 16. Energy - energy of the normalized intensity histogram (Isaac) (See Supplement B2) 17. Entropy - entropy of the normalized intensity histogram (Isaac) (See Supplement B2) 18. Surface Gradient - average of surface gradients (Isaac) 19. Interior Gradient - average of interior gradients (Isaac) 20. Interior Intensity - average of interior intensities (Isaac) 21. Surface Intensity - average of surface intensities (Isaac) 22. Intensity Ratio - ratio of surface intensity to interior intensity (Isaac) 23. Shared Boundary - ratio of surface area that touches another object to total surface area (Isaac) 24. Surface Area - number of voxels on surface of the object (Isaac) 25. Shape - Ratio of surface voxels to total voxels - compactness or thinness of object (Isaac) (See Supplement B2) 26. Texture - Similar to interior gradient, also exploring other texture measurements.
