Combining Confocal Imaging and Descattering
Combining Confocal Imaging and Descattering
复制标题
结合共焦成像和去散射
DOI：
10.1111/j.1467-8659.2008.01263.x
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发表时间：
2008
影响因子：
2.5
通讯作者：
H. Lensch
中科院分区：
文献类型：
--
作者：
Christian Fuchs;Michael Heinz;M. Levoy;H. Seidel;H. Lensch
在半透明物体中，光路受到多重散射的影响，这会污染任何观察。共焦成像通过仔细聚焦照明并观察从大孔径到物体体积内特定位置的光线，减少了这种全局照明效应的影响。不过，选定的光路仍然包含一些全局散射贡献。基于高频照明的去散射具有相同的目的。它从观察到的光路中删除全局分量。我们证明了共焦成像和去散射是正交的，并提出了一种新颖的去散射协议来分析光传输路径邻域中的光传输。与共焦成像相结合，我们的去散射方法可以在半透明介质中实现具有更高对比度和更好分辨率的光学切片。
In translucent objects, light paths are affected by multiple scattering, which is polluting any observation. Confocal imaging reduces the influence of such global illumination effects by carefully focusing illumination and viewing rays from a large aperture to a specific location within the object volume. The selected light paths still contain some global scattering contributions, though. Descattering based on high frequency illumination serves the same purpose. It removes the global component from observed light paths. We demonstrate that confocal imaging and descattering are orthogonal and propose a novel descattering protocol that analyzes the light transport in a neighborhood of light transport paths. In combination with confocal imaging, our descattering method achieves optical sectioning in translucent media with higher contrast and better resolution.