自动地标识别对CSCPG重建的影响

Sampath Kumar, K. Nayak, K. Hareesha
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引用次数: 1

摘要

脊柱侧凸是人体脊柱的三维变形。通过双平面x射线的三维立体放射重建来评估。为此,采用了立体对应点与几何(CSCPG)相结合的重建算法。CSCPG重建需要在双平面x射线上识别每个椎体的6个立体对应地标。目前,这些地标是半自动识别的。本文实现了地标识别过程的自动化,分析了自动化过程对三维重建精度的影响。进行统计显著性检验,比较这些重建的准确性。自动化程序的好处是双重的。它能够提供更好的重建精度,同时也减少了观测器的可变性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of automatic landmark identification on CSCPG reconstruction
Scoliosis is a 3D deformation of the human spine. It is evaluated using 3D stereo-radiographic reconstruction from the biplanar x-rays. The combined stereo-corresponding point and geometric (CSCPG) reconstruction algorithm is used for this purpose. The CSCPG reconstruction requires six stereo-corresponding landmarks per vertebra to be identified on the biplanar x-rays. Currently, these landmarks are semi automatically identified. In this paper, the landmark identification procedure is automated and the effect of automated procedures on the accuracy of 3D reconstruction is analyzed. The statistical significance test is performed to compare the accuracies of these reconstructions. The benefits of automated procedure are twofold. It is able to give better reconstruction accuracy and at the same time it also reduces observer variability.
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