旋转全景X线片中的多余影像。通过数学分析估计物体的成像位置。
Redundant shadows in rotational panoramic radiographs. Estimating the imaging positions of objects by mathematical analysis.
作者信息
Wakoh M, Kuroyanagi K
机构信息
Department of Oral and Maxillofacial Radiology, Tokyo Dental College, Chiba, Japan.
出版信息
Oral Surg Oral Med Oral Pathol. 1991 Oct;72(4):497-504. doi: 10.1016/0030-4220(91)90567-v.
PMID:1923449
Abstract
The sources of real, ghost, and double images in rotational panoramic radiographs generated by a machine with a continuous movement of the center of rotation are described. No assumptions are made with regard to the trajectory of the center of rotation; rather, an empirical approximation scheme is used to establish a regression from which measured positions of reference objects can be predicted.
摘要
描述了由旋转中心连续移动的机器产生的旋转全景X线片中真实影像、重影和双影像的来源。对于旋转中心的轨迹未作任何假设；相反，采用一种经验近似方案来建立回归方程，据此可以预测参考物体的测量位置。
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