V2EX volume rendering

Volume Rendering

释义 Definition

体绘制/体渲染:一种三维可视化技术,用来把三维体数据(如 CT/MRI、科学模拟得到的标量场)直接生成二维图像。它通常通过为不同数值分配颜色与透明度(传递函数),再沿视线累积光照/吸收效果来显示内部结构,而不必先提取表面网格。

发音 Pronunciation

/vl.jum rn.dr./

例句 Examples

Volume rendering helps doctors see soft tissues in a CT scan.
体绘制能帮助医生在 CT 扫描中观察软组织。

By adjusting the transfer function, the scientist used volume rendering to reveal faint structures inside the simulated nebula without extracting any surfaces.
通过调整传递函数,科学家用体绘制在不提取任何表面的情况下显示出模拟星云内部的微弱结构。

词源 Etymology

volume 原意是“卷、册”(来自拉丁语 volumen,意为“卷起来的东西”),后来引申为“体积、空间中的三维量”。rendering 来自动词 render(“呈现、表现、渲染”),在计算机图形学中专指“把数据/场景计算生成图像”。合在一起,volume rendering 就是“把体数据呈现为图像”的方法与过程。

相关词 Related Words

文献与作品 Notable Works

  • Real-Time Volume Graphics(Engel, Hadwiger, Kniss, Rezk-Salama, Weiskopf)
  • The Visualization Toolkit (VTK): An Object-Oriented Approach to 3D Graphics(Schroeder, Martin, Lorensen 等;相关章节讨论体绘制)
  • Computer Graphics: Principles and Practice(相关章节涵盖体数据与体绘制/科学可视化内容)
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