Density nodule detection in 3-D digital images

Details Density nodule detection in 3-D digital images Density nodule detection in 3-D digital images

2005-06-21

2005-06-21

Mehta, Bhavesh M. (Department: 2621)

Image analysis

Applications

Biomedical applications

C382S172000, C382S199000, C356S039000, C378S021000

Reexamination Certificate

active

06909797

ABSTRACT:
An algorithm is quickly scans a digital image volume to detect density nodules. A first stage is based on a transform to quickly highlight regions requiring further processing. The first stage operates with somewhat lower sensitivity than is possible with more detailed analyses, but operates to highlight regions for further analysis and processing. The transform dynamically adapts to various nodule sizes through the use of radial zones. A second stage uses a detailed gradient distribution analysis that only operates on voxels that pass a threshold of the first stage.

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