An Optimized Superpixel Clustering Approach for High-Resolution Chest CT Image Segmentation

Lung segmentation is a fundamental step in many image analysis applications for lung diseases and abnormalities in thoracic computed tomography (CT). However, due to the large variations in pathology that may be present in thoracic CT images, it is difficult to extract the lung regions accurately. A major insight to deal with this problem is the existence of new approaches to cope with quality and performance. This poster presents an optimized superpixel clustering approach for high-resolution chest CT segmentation. The proposed algorithm is compared against some super-pixel algorithms while a performance evaluation is carried out in terms of boundary recall and under-segmentation error metrics. The over-segmentation results on a CT Emphysema Database demonstrate that our approach shows better performance than other three state-of-the-art superpixel methods.