改进射线数字成像系统的图像质量(英文)

Improvement of the Image Quality in Digital Radiographic System

目的 改善射线数字成像系统的图像质量 .方法 在射线数字成像系统中 ,存在许多影响图像质量的因素 ,这些因素来源于系统的各个成像环节 ,如 CCD相机、成像屏、X射线源、被测物体、控制电路、射线散射等 ,它们对成像质量造成严重影响 .作者针对 DR成像系统降低图像质量的因素作了分析 ,并通过校正和图像处理的方法使其得到了抑制 .结果 提出了改善射线数字成像系统图像质量的方法 .结论 通过实际应用 ,表明所提出的方法是有效的 .

Aim\ To improve the image quality in digital r adiographic(DR) system. Methods\ In DR system there are many degrading factors of DR image , which originate from most of elements of the system, such as CCD camera, image eonversion screen, x-ray source, inspected object, controlling circuits, X-ra y scattering and etc. They influence on image quality seriously. Aimed at the p erformance of the degrading factors in DR system, these factors are analyzed and suppressed by correction and image processing. Results\ The methods of improvement of image quality are presented . Conclusion\ It is shown that the presented methods are effective through practical application.