Non-recursive linear algorithms for optical imaging in diffusive media.
Non-recursive linear algorithms for optical imaging in diffusive media.
复制标题
DOI：
10.1007/978-1-4615-1875-4_27
复制
发表时间：
1994
影响因子：
--
通讯作者：
D. Benaron;D. C. Ho;S. Spilman;J. V. van Houten;D. Stevenson
中科院分区：
文献类型：
--
作者：
D. Benaron;D. C. Ho;S. Spilman;J. V. van Houten;D. Stevenson
光学成像已被用于成像幻影，动物和人类。它为组织的功能图像的产生提供了潜力，例如中风期间大脑的氧合。需要快速算法来允许在现实条件下生成诊断上有用的图像，包括传输几何形状不可能的可能性。我们提出了一种线性算法，虽然不太理想，但可以快速重建图像，避免递归非线性解决方案的陷阱。这样的技术还可以促进使用变化的但生理的成像几何形状。我们发现，线性反投影断层扫描是可行的临床应用。在保留当前处理算法的情况下，本机械扫描设备转换为临床扫描仪应该是可能的。这种临床扫描仪最终应该能够在不到一分钟的时间内在活体人脑中心生成厘米分辨率的图像。
Optical imaging has been used to image phantoms, animals, and humans. It offers the potential for the production of functional images of tissues, such as oxygenation of brain during stroke. Fast algorithms are needed to allow diagnostically useful images to be generated under realistic conditions, including the likelihood that transmission geometries will not be possible. We proposed a linear algorithm, while less than ideal, may allow rapid reconstruction of images and avoid the pitfalls of recursive, nonlinear solutions. Such techniques may also facilitate the use of varied but physiologic imaging geometries. We found that linear backprojection tomography is feasible for clinical use. Conversion of the present mechanically scanning device to a clinical scanner should be possible with retention of the current processing algorithms. Such a clinical scanner should ultimately be able to generate images in less than one minute with centimeter resolution at the center of living human brain.