An algorithm is disclosed that recovers regions of possible pleural nodules left out of an organ field or otherwise undetected due to the nature of low level image processing in the organ field. A morphological closing with an elliptical structuring element is performed on a region to detect nodules...http://www.google.fr/patents/US6766043?utm_source=gb-gplus-shareBrevet US6766043 - Pleural nodule detection from CT thoracic images
