CvTMorph:改善医疗图像注册中的局部特征提取,用于用卷积视觉转换器进行呼吸运动建模
Peizhi Chen1, Xupeng Zou1, Yifan Guo1
1College of Computer and Information Engineering, Xiamen University of Technology, Xiamen 361024, China.
Current medical imaging
|September 11, 2024
概括
一个新的框架,CvTMorph,通过结合卷积视觉转换器 (CvT) 和卷积神经网络 (CNN) 来增强4D医疗图像中的呼吸运动建模,以提高局部特征提取和注册精度.
科学领域:
- 医疗成像医学成像
- 计算机视觉 计算机视觉
- 人工智能的人工智能
背景情况:
- 在4D医学图像中精确的呼吸运动建模对于辐射治疗规划等应用至关重要.
- 当前的注册方法往往无法有效地捕获本地特征,从而限制了它们的性能.
研究的目的:
- 引入CvTMorph,这是一个新的框架,旨在增强局部特征提取,以改进呼吸运动建模.
- 以混合方法利用卷积视觉转换器 (CvT) 和卷积神经网络 (CNN) 的优势.
主要方法:
- CvTMorph将CvT和CNN集成到一个混合模型中,并增强了扩展和方形层,以实现更优质的注册.
- 在4D-Lung和DIR-Lab数据集上评估了性能,并与最先进的方法进行了比较.
主要成果:
- 与现有方法相比,CvTMorph在呼吸运动建模方面表现出卓越的准确性和稳定性.
- 整合CvT显著提高了注册性能和当地图像结构的表现.
结论:
- 在4D医学成像中,CvTMorph为精确的呼吸运动建模提供了一个强大的解决方案.
- 混合CvT-CNN模型有效提取局部特征,增强注册并显示辐射治疗规划的希望.
相关概念视频
Self-Evaluation: Self-Enhancement and Self-Verification
4.7K
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
4.7K
General State of Stress
916
The general state of stress within a material can be accurately depicted using a stress tensor. This tensor encapsulates the internal forces distributed within a material subjected to external forces or deformations.
Specifically, consider a tetrahedral element where one face, labeled XYZ, is perpendicular to the line OA, and the remaining faces align with the coordinate axes with point O as the origin. At any point, such as point O, the stress tensor can be used to determine the stress...
Specifically, consider a tetrahedral element where one face, labeled XYZ, is perpendicular to the line OA, and the remaining faces align with the coordinate axes with point O as the origin. At any point, such as point O, the stress tensor can be used to determine the stress...
916
Ethnic Identity within a Larger Culture
412
Adolescents from ethnic minority backgrounds face a multifaceted journey in forming their identities, shaped by the intersections of cultural expectations and personal exploration. For these adolescents, identity formation involves not only typical developmental challenges but also navigating the perceptions and attitudes of the majority culture. As they grow, adolescents in ethnic minority groups often become increasingly aware of stereotypes, social biases, and discrimination, all of which...
412
Introduction to Stress and Lifestyle
861
Stress is a multifaceted response to events perceived as challenging or threatening, highlighting physical, emotional, cognitive, and behavioral reactions. Physically, stress can lead to fatigue, sleep disruptions, and various health issues such as frequent colds, chest pains, and nausea. Emotionally, it can manifest as anxiety, depression, irritability, and anger triggered by both minor and major life events. Cognitively, it may result in difficulty in concentration, memory, and...
861
Psychological Responses to Stress
976
Psychological responses to stress encompass the various cognitive and emotional reactions individuals experience when faced with challenging or threatening situations, such as a job loss. Prolonged exposure to stressors can disturb emotional balance, increasing negative emotions (e.g., anxiety and sadness) and diminishing positive emotions (e.g., joy and satisfaction). These persistent emotional shifts are associated with an increased risk of both physical illness and mental health issues, such...
976
Stress and Mental Health
1.7K
Chronic stress profoundly affects mental health, significantly influencing mood, behavior, and overall quality of life. Research closely links chronic stress with mental health conditions such as depression, anxiety, and substance use disorders. Ongoing exposure to stress can lead to physiological and psychological changes, initiating a cycle of emotional distress and maladaptive coping mechanisms.
Individuals with depression often experience challenges in both their personal and professional...
Individuals with depression often experience challenges in both their personal and professional...
1.7K


