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arXiv physics/0505196physics.med-phphysics.bio-ph
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平面波照明的多投影光学扩散层析成像

Multiple Projection Optical Diffusion Tomography with Plane Wave Illumination

Vadim A. Markel, John C. Schotland

摘要:

我们描述了一种新的数据收集方案,光学扩散层析成像中的平面波照明相结合的多个投影板成像几何。通过围绕样品旋转板片来执行多个投影测量。所提出的方法的优点是,测量数据可以更容易地拟合到最常用的检测器的动态范围。同时,多个投影通过相互交换深度和横向方向以及扫描(检测)和集成(照明)表面来提高图像质量。反演方法推导出的图像重建与非常大的数据集。数值模拟进行了固定和旋转板。

英文摘要:

We describe a new data collection scheme for optical diffusion tomography in which plane wave illumination is combined with multiple projections in the slab imaging geometry. Multiple projection measurements are performed by rotating the slab around the sample. The advantage of the proposed method is that the measured data can be much more easily fitted into the dynamic range of most commonly used detectors. At the same time, multiple projections improve image quality by mutually interchanging the depth and transverse directions, and the scanned (detection) and integrated (illumination) surfaces. Inversion methods are derived for image reconstructions with extremely large data sets. Numerical simulations are performed for fixed and rotated slabs.

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