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相关概念视频

Computed Tomography01:10

Computed Tomography

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Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
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相关实验视频

Updated: Jun 24, 2025

Deep Learning-Based Segmentation of Cryo-Electron Tomograms
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太赫兹深度学习融合计算机断层扫描.

Yi-Chun Hung, Weng-Tai Su, Ta-Hsuan Chao

    Optics express
    |June 11, 2024
    PubMed
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    此摘要是机器生成的。

    一个名为MS3-Unet的新框架通过跨域的信号融合来增强太赫兹 (THz) 断层成像. 这种方法可以改善图像恢复,以便更好地检查和分析对象.

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    Hybrid µCT-FMT imaging and image analysis
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    Last Updated: Jun 24, 2025

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    Enhancing Electrode Location Assessment in Cochlear Implantation via Computed Tomography Image Fusion
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    科学领域:

    • 物理 物理学 物理
    • 影像科学 影像科学
    • 计算机科学 计算机科学

    背景情况:

    • 太赫兹 (THz) 断层成像提供了具有材料分类能力的非侵入性,非破坏性检查.
    • 从扭曲的THz信号中提取物质和几何信息在计算上很复杂,需要多物理模型.

    研究的目的:

    • 为改进THz断层成像和信息提取开发一个新的框架.
    • 为了解决现有的THz成像分析方法的计算复杂性和局限性.

    主要方法:

    • 引入了一个THz多维断层图像框架,使用一个多尺度空间光谱融合Unet (MS3-Unet).
    • MS3-Unet将多个领域的THz信号融合在一起,使用多个尺度的分支来提取特征,以及用于图像恢复的自适应过器.

    主要成果:

    • MS3-Unet在图像恢复方面表现出卓越的表现,在峰值信号对噪声比率 (PSNR) 和结构相似性指数测量 (SSIM) 中表现优于同行方法.
    • 该框架使用几何变量对象进行了评估,证实了其有效性.

    结论:

    • 拟议的MS3-Unet框架显著提高了THz断层成像质量和信息提取.
    • 该框架提供了一个可扩展和可访问的接口,用于与各种用户定义的模型集成.