关键词: 图像分割 图论 分水岭 核磁共振成像

Abstract:

This paper gives an automatic segmentation method of 3D MRI images. A fast segmentation algorithm based on region relativity is proposed, combining wi  th the watershed algorithm and the SWA method proposed by Eitan Sharon. The obvious advantage of the algorithm is that the computational cost is reduced  and the computational speed is improved greatly. The interested object can be extracted rapidly and effectively. The experimental results show that the   new algorithm can accurately segment 3D MR images and single images with a complex texture.

Key words: image segmentation;graph theory, watershed;magnetic resonance imaging