摘要 |
<p>A method for the automated detection of gross abnormalities and asymmetries in chest images (10), including generating image data from radiographic images of the thorax. The image data are then analyzed in order to produce the boundaries of the aerated lung regions in the thorax. This analysis comprises location of the mediastinum and lung apices, iterative global thresholding (11) with centroid testing of contours, local thresholding (12) on regions along initial contours of the aerated lung, correction (13) for regions near the costo and cardiophrenic angles in the chest, analysis (15) of the areas and density distribution within the aerated lung regions in the chest and determination (16) of the likelihood of the presence of a gross abnormality or asymmetry. Finat ouptut could be the computer determined contours of the lungs or the likelihood for abnormality.</p> |