Shang Hailong, Zhao Shiwei, Du Hongdi, Zhang Jinggang, Xing Wei, Shen Hailin
Department of Radiology, the Third Affiliated Hospital of Soochow University, Changzhou, China.
Department of Radiology, Suzhou Kowloon Hospital, Shanghai Jiaotong University School of Medicine, Suzhou, China.
J Thorac Dis. 2020 Dec;12(12):7298-7312. doi: 10.21037/jtd-20-3339.
Calculation methods have a critical role in the precise sorting of medical images. Particle swarm optimization (PSO) is a widely used approach in the clinical centers and for other medical applications as it can disentangle optimization errors in attached spaces. In this work, a new model for image segmentation is proposed through an improved optimization algorithm.
A novel multi-objective algorithm was configured, named "multi-objective mathematical programming" (MOMP), based on the normalized normal constraint method (NNCM). In this model, the proposed algorithm was applied to evaluate the robustness of the suggested model through including the synthetic images of objects with various concavities and Gaussian noise. This model segments the individuals' heart and the left ventricle from data sets of sequentially evaluated tomography and magnetic resonance images. To objectively and quantifiably assess the presentation of the medical image segmentations based on regions outlined by experts and the graph cut method, a set of distance and resemblance metrics were implemented.
The numerical results obtained in experimental test cases demonstrate the validity and superiority of the proposed model through better segmentation accuracy and stability.
The results indicated that the proposed MOMP method can outperform all traditional models in terms of segmentation accuracy and stability, and is thus appropriate for use in medical imaging.
计算方法在医学图像的精确分类中起着关键作用。粒子群优化算法(PSO)是临床中心及其他医学应用中广泛使用的一种方法,因为它能够解决附加空间中的优化误差问题。在本研究中,通过改进优化算法提出了一种新的图像分割模型。
基于归一化正态约束方法(NNCM)构建了一种名为“多目标数学规划”(MOMP)的新型多目标算法。在该模型中,通过纳入具有各种凹度的物体合成图像和高斯噪声,应用所提出的算法来评估该模型的稳健性。该模型从经连续评估的断层扫描和磁共振图像数据集中分割出个体的心脏和左心室。为了基于专家勾勒的区域和图割方法客观且定量地评估医学图像分割的表现,实施了一组距离和相似性度量。
在实验测试案例中获得的数值结果通过更好的分割准确性和稳定性证明了所提出模型的有效性和优越性。
结果表明,所提出的MOMP方法在分割准确性和稳定性方面优于所有传统模型,因此适用于医学成像。