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相关概念视频

Muscles for Facial Expressions01:14

Muscles for Facial Expressions

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The craniofacial muscles are a collection of approximately 20 thin skeletal muscles situated beneath the skin of the face and scalp. These muscles, primarily responsible for the vast array of human facial expressions, originate from the bones or fibrous structures of the skull and extend outwards to connect with the skin. While most skeletal muscles in the body are enveloped in thick fascia, facial muscles generally have a more delicate fascial covering, with the buccinator muscle being a...
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Shape and Texture of Coarse Aggregate01:25

Shape and Texture of Coarse Aggregate

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Aggregate shape is classified based on the relative sharpness or roundness of the edges and corners. This classification includes categories like rounded, angular, elongated, and flaky, each with specific characteristics. Rounded aggregates, fully shaped by attrition, are typical of river or seashore gravel, while angular aggregates, such as crushed rock, have well-defined edges. Aggregates that are elongated and flaky are less desirable, as they can reduce the workability and strength of...
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Facial Feedback Hypothesis01:24

Facial Feedback Hypothesis

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Charles Darwin proposed that facial expressions are an evolutionary adaptation for communication. He argued that these expressions are not influenced by culture but are universal across species. For example, a snarling expression with exposed teeth signals a threat in many animals, including humans. Darwin also suggested that displaying an emotion can intensify the feeling. Smiling, for example, could enhance one's sense of happiness. This idea laid the foundation for understanding the role...
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Modeling and Similitude01:12

Modeling and Similitude

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Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
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Morphogenesis02:19

Morphogenesis

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Plant morphogenesis—the development of a plant’s form and structure—involves several overlapping developmental processes, including growth and cell differentiation. Precursor cells differentiate into specific cell types, which are organized into the tissues and organ systems that make up the functional plant.
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相关实验视频

Updated: Sep 19, 2025

Creating Virtual-hand and Virtual-face Illusions to Investigate Self-representation
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在野生环境中基于物理的面部纹理生成.

Chi Wang, Junming Huang, Rong Zhang

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    此摘要是机器生成的。

    本研究引入了一个新的框架,用于从文本中生成3D面部纹理,兼容物理基于染 (PBR). 该方法可以处理不受限制的图像,避免需要专门的捕获设备.

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    相关实验视频

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    科学领域:

    • 计算机视觉 计算机视觉
    • 计算机图形 计算机图形
    • 机器学习 机器学习

    背景情况:

    • 3D面部纹理生成对于逼真的染至关重要.
    • 现有的方法通常需要受控的环境和专门的硬件 (例如,光阶段).
    • 与物理基染 (PBR) 管道的兼容性是一个重大挑战.

    研究的目的:

    • 开发一个以文本为导向的框架,用于生成与PBR兼容的3D面部纹理.
    • 为了使图像从不受约束的现实环境中捕获的图像中生成纹理.
    • 消除对昂贵,受控的捕获环境的依赖.

    主要方法:

    • 一个使用FFHQUV进行纹理空间规范化的多阶段框架.
    • 集成可分化的染和纹理脱规范化.
    • 训练一个生成对抗网络 (GAN) 用于PBR纹理采样.
    • 将GAN的潜伏空间与文本嵌入点对齐,以实现文本引导生成.
    • 设计一个边缘意识的分数蒸采样 (EASDS) 损失和提升方案.

    主要成果:

    • 提出的方法成功地从文本中生成了与PBR兼容的3D面部纹理.
    • 它有效地处理在不受约束的环境中捕获的图像,删除背景和头发的影响.
    • 文本导向生成是灵活的,可以实现多样化的结果.
    • 通过EASDS,提高发电多样性和优化效率.

    结论:

    • 该框架提供了一个强大的解决方案,用于文本驱动的,在野外的3D面部纹理生成.
    • 它克服了关于PBR兼容性和捕获环境要求的现有方法的局限性.
    • 与当前的PBR纹理生成技术相比,这种方法显示出更高的性能.