用于NBI的红外畸变图像修正方法研究

摘要

中性束注入(Neutral Beam Injection, NBI)是等离子体辅助加热和维持最有效的手段之一.目前,红外诊断作为一种快速高效的诊断手段,逐渐用于中性束束品质诊断中.在红外诊断装置中,由于红外相机的光轴与靶平面的垂线呈一定夹角,从而导致采集图像的几何畸变.论文利用坐标变换的方法通过计算机编程实现了红外畸变图的校正,为红外成像应用于中性束诊断奠定了基础.%Neutral beam injection has been recognized as one of the most effective means for plasma heating.As an effective and efficient way, infrared diagnosis is gradually used to detect the quality of neutral beam.As there is an angle between the optical axis of infrared camera and vertical line of diagnosis target plane, the image obtained by infrared camera exists geometric distortion.In this paper, a distortion correction method is introduced using coordinate transformation for infrared images, it lays a basis for the application of infrared thermography in neutral beam diagnosis.