A novel approach for distortion correction for X-ray image intensifiers

被引：28

作者：

Soimu, D ^{[1
]}

Badea, C ^{[1
]}

Pallikarakis, N ^{[1
]}

机构：

[1] Univ Patras, Sch Med, Dept Med Phys, Patras 26500, Greece

来源：

COMPUTERIZED MEDICAL IMAGING AND GRAPHICS | 2003年 / 27卷 / 01期

关键词：

X-ray image intensifier; distortion correction; three-dimensional reconstruction; digital tomosynthesis;

D O I：

10.1016/S0895-6111(02)00055-1

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Applications of X-ray image intensifiers in medical imaging, include the use of fluoroscopic projection images to generate three-dimensional tomographic reconstructions. Unfortunately, the inherent distortions on the acquired projections deteriorate the quality of the reconstructed tomograms. Distortion correction can be performed using algorithms that can be classified as global or local according to the method used, both having specific advantages and disadvantages. In this work, a novel approach for distortion correction is proposed which, by combining both global and local correction methods allows good image quality in relatively acceptable time. Correction parameters were obtained using a calibration phantom specially designed for this purpose. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：79 / 85

页数：7