Accelerated Deterministic Simulation of X-ray Attenuation Using Graphics Hardware
Accelerated Deterministic Simulation of X-ray Attenuation Using Graphics Hardware
复制标题
使用图形硬件加速 X 射线衰减的确定性模拟
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
N. John
中科院分区：
文献类型：
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作者：
F. Vidal;Manuel Garnier;N. Freud;J. Létang;N. John
本文提出了一种基于图形硬件的X射线透射式成像确定性模拟方法。使用Beer-Lambert定律，只模拟直接传输的光子。我们之前尝试使用图形处理器模拟多边形网格中的X射线衰减，结果表明，与经过验证的软件实现相比，fi不能在不损失精度的情况下显著提高性能。然而，模拟仅限于单色X射线和fiNite点源。我们在这里提出了我们的方法的扩展，通过考虑多色X射线和引起模糊的焦点来执行更真实的物理模拟。
In this paper, we propose a deterministic simulation of X-ray transmission imaging on graphics hardware. Only the directly transmitted photons are simulated, using the Beer-Lambert law. Our previous attempt to simulate X-ray attenuation from polygon meshes utilising the GPU showed significant increase of performance, with respect to a validated software implementation, without loss of accuracy. However, the simulations were restricted to monochromatic X-rays and finite point sources. We present here an extension to our method to perform physically more realistic simulations by taking into account polychromatic X-rays and focal spots causing blur.