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3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache
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NeUDF:学习带有音量染的神经未签名距离场.

Yu-Tao Liu, Li Wang, Jie Yang

    IEEE transactions on pattern analysis and machine intelligence
    |November 28, 2023
    PubMed
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    此摘要是机器生成的。

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    NeUDF使用未签名距离函数 (UDF) 和新的神经染技术重建具有开放表面的3D形状. 这促进了复杂物体的多视图形状重建,超出了封闭表面.

    科学领域:

    • 计算机视觉和图形学
    • 几何深度学习 几何深度学习
    • 三维重建的3D重建

    背景情况:

    • 神经隐式染已经进行了先进的多视图形状重建.
    • 使用符号距离函数 (SDF) 的现有方法仅限于封闭的表面.
    • 现实世界中的物体通常具有开放的表面结构,这对当前的方法构成了挑战.

    研究的目的:

    • 引入一种新的神经染框架,NeUDF,能够重建具有任意拓的表面.
    • 仅从多视图监控中进行重建,克服基于SDF的方法的局限性.
    • 为了应对重建现实世界对象中常见的开放表面的挑战.

    主要方法:

    • NeUDF使用无符号距离函数 (UDF) 来灵活表示任意表面.
    • 针对开放表面重建而适应的神经体积染的正式规则 (自相一致,不偏见,遮蔽意识).
    • 开发了一个专为UDF量身定制的染重量函数和一个正常的规范化策略,以解决在开放表面的方向模两可.

    主要成果:

    • NeUDF成功地从多视图数据中重建具有任意拓的表面.
    • 该方法在具有挑战性的数据集上显著优于最先进的技术,特别是那些具有开放边界的数据集.
    • 在MGN和Deep Fashion 3D数据集上进行评估,在复杂形状重建中表现出卓越的性能.

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    结论:

    • NeUDF为具有开放表面的对象的多视图形状重建提供了强大的解决方案.
    • 该UDF表示和定制染技术克服了以前基于SDF的方法的局限性.
    • 这项工作将神经染的适用性扩展到更广泛的现实世界3D对象.