web site https://spie.org/conferences-and-exhibitions/past-conferences-and-exhibitions/medical-imaging-2015
keywords computer aided diagnosis; computerized tomography; diagnosis; estimation; iimage segmentation; matrix algebra; medical imaging; optical transfer function; accurate quantifications; chronic obstructive pulmonary disease; computer tomography images; equivalent diameter; full width half maximum; hessian matrix computations; intensity threshold; thresholding-based methods; pulmonary diseases