OSEM

常见例句

• Seen from the simulation experiments,ROSEM is superior to OSEM in terms of convergence and image quality.
  不仅加快了图像重建的收敛速度而且改善了重建图像的质量。
• Relaxation parameters and smooth operations on pixels after each iteration step are introduced into the OSEM algorithm,forming Relaxed OSEM(ROSEM).
  将松弛系数和迭代间像素值约束引入有序子集-最大似然期望算法中,构造出应用于发射CT中的ROSEM算法引入到透射式工业CT中。
• Three iterative algorithms, ART、MAP and OSEM, are attempted to reconstruct the section of steel tube by using the simulation model.
  为了加快钢管检测的速度，本文研究了少投影条件下钢管截面的图像重建算法并通过模拟数据验证了其重建的效果。
• At last, this dissertation discusses how OSEM (Ordered Subsets Expectation Maximization) can be applied in 3D reconstruction suitably.
  6.;讨论了利用OSEM（Ordered Subsets Expectation Maximization）算法进行物体的三维重建。
• In order to fill the missing cone caused by the limited-angle chromotomographicimages, we designed the ordered subset expectation maximization algorithm(OSEM).
  论文深入分析了有限投影角所带来的信息丢失锥体问题，并为了更好地克服有限投影角问题，提出了空域内的序列子集期望最大算法，并通过大量的计算机仿真实验，验证了序列于集期望最大算法具有鲁棒、快速收敛的特点，并能够很好地克服有限投影角存在的病态问题。
• OSEM has good reconstructed image quality and uses less computation time.Overrelaxation technique has adjustable relaxed parameters and speeded convergence function.
  有序子集最大期望法(OSEM)具有较高的重建图像质量和较短的计算时间，超松弛因子(OR)有可灵活调节超松弛因子和加速收敛两种功效。
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