为大脑MRI生成多病理和多模式图像和标签.
Virginia Fernandez1, Walter Hugo Lopez Pinaya1, Pedro Borges1
1Department of Biomedical Engineering and Imaging Sciences, King's College London, Strand, London, WC2R 2LS, United Kingdom.
Medical image analysis
|July 26, 2024
概括
本研究介绍了一种新的两阶段生成模型,用于创建合成的2D和3D语义标签图和相应的图像. 这些合成数据集增强了深度学习细分任务,即使实际数据有限.
科学领域:
- 计算机视觉 计算机视觉
- 机器学习 机器学习
- 人工智能的人工智能
背景情况:
- 生成模型越来越多地用于创建用于训练深度学习模型的合成数据,提供隐私和数据增强的好处.
- 目前的二维生成方法主要提供分类注释,限制了它们在监督细分任务中的使用.
- 为3D应用程序生成配对合成图像和细分地图是一个尚未探索的领域.
研究的目的:
- 开发一种新的两阶段生成模型,用于合成配对的2D和3D语义标签地图和多模式图像.
- 为弥补在生成高质量的缺口,为监督细分任务配对合成数据.
- 评估生成的合成数据在下游细分应用中的实用性.
主要方法:
- 一种两阶段的生成方法,它结合了用于标签地图合成的潜在扩散模型和用于图像合成的变异自编码器生成对抗网络 (VAE-GAN).
- 该模型生成了语义标签图和相应的2D和3D多模式图像.
- 生成的合成数据集在各种细分任务中进行评估.
主要成果:
- 拟议的模型成功地生成对联的2D和3D语义标签地图和多模式图像.
- 模型产生的合成数据集在各种细分任务中表现出有效性.
- 合成数据可以增强小型真实数据集或完全取代它们,同时保持强的性能.
- 该模型显示,在下游任务中,有潜力提高分销外数据的性能.
结论:
- 开发的双阶段生成模型为创建合成配对图像和细分数据提供了强大的解决方案.
- 这种方法显著推进了合成数据生成领域,用于基于深度学习的细分.
- 生成的合成数据显示了广泛的适用性和改善模型稳定性和性能的潜力.
相关概念视频
Magnetic Resonance Imaging
5.1K
Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
5.1K
Brain Imaging
219
Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
219


