Considering the weak edges in pancreas segmentation, this paper proposes a new solution which integrates more features of CT images by combining SLIC superpixels and interactive region merging. In the proposed method, Mahalanobis distance is first utilized in SLIC method to generate better superpixel images. By extracting five texture features and one gray feature, the similarity measure between two superpixels becomes more reliable in interactive region merging. Furthermore, object edge blocks are accurately addressed by re-segmentation merging process. Applying the proposed method to four cases of abdominal CT images, we segment pancreatic tissues to verify the feasibility and effectiveness. The experimental results show that the proposed method can make segmentation accuracy increase to 92% on average. This study will boost the application process of pancreas segmentation for computer-aided diagnosis system.
[1]Changchun Univ Sci & Technol, Sch Comp Sci & Technol, Changchun, Jilin, Peoples R China.
[2]Jilin Univ, Hosp 1, Changchun, Jilin, Peoples R China.
[3]Nagoya Univ, Gard Sch Information Sci, Nagoya, Aichi, Japan.
(8.0+极速模式)