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相关概念视频

Ultrasonography01:17

Ultrasonography

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Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
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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

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学习无损压缩用于高比特深度体积医疗图像.

Kai Wang, Yuanchao Bai, Daxin Li

    IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
    |March 3, 2025
    PubMed
    概括

    这项研究介绍了一种基于比特分割的无损体积图像压缩 (BD-LVIC) 框架,用于高比特深度的医疗图像. BD-LVIC提高了压缩效率并保持了编码速度,提供了实用的实用性.

    科学领域:

    • 医疗成像医学成像
    • 图像压缩 图像压缩
    • 计算机视觉 计算机视觉

    背景情况:

    • 基于学习的方法有先进的图像压缩,但与高位深度体积医疗图像作斗争.
    • 挑战包括性能下降,高内存需求,以及医学成像数据的处理速度缓慢.

    研究的目的:

    • 介绍基于比特分割的无损体积图像压缩 (BD-LVIC) 框架.
    • 解决目前压缩高位深度体积医疗图像的方法的局限性.

    主要方法:

    • BD-LVIC框架将高位深度卷分为最重要的位量 (MSBV) 和最不重要的位量 (LSBV).
    • 对于结构细节,MSBV使用传统编码器;对于纹理细节,LSBV使用基于学习的模型,具有基于变压器的特征对齐和并行自行回归编码.

    主要成果:

    • BD-LVIC在各种数据集中实现了新的性能基准,用于体积医学图像压缩.
    • 该框架展示了具有竞争力的编码速度,表明了实际可用性.

    结论:

    • BD-LVIC框架为高位密度体积医学图像的无损压缩提供了显著的进步.
    • 它有效地平衡了压缩效率,细节保存和处理速度.

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