摘要
本文针对基于图像分割的双能CT不完备数据重建算法,提出了图像分割过程和方程组求解环节是优化算法的两个关键点,同时给出了初步优化方法。初步实验结果表明这两方面因素选取的优劣将直接影响重建图像质量。因此,根据实际应用需求,如能改善这两方面因素,基于图像分割的双能CT不完备数据重建算法的重建性能将会进一步提高。
Aimed at dual energy CT reconstruction algorithm from incomplete data based on image segmentation, this paper proposed two key points to improve this algorithm, the processes of image segmentation and solving the equations. The primary results demonstrate that these two elements greatly affect the quality of reconstructions. Hence, depending on the application requirements, if we can optimize these two key points, a more robust dual energy CT reconstruction algorithm from incomplete data based on image segmentation would be obtained.
出处
《CT理论与应用研究（中英文）》
2013年第4期579-586,共8页
Computerized Tomography Theory and Applications
基金
国家自然科学基金青年科学基金(11305073)
关键词
双能CT
图像分割
不完备数据
优化
dual energy CT
image segmentation
incomplete data
improvement
