【摘要】 海浪引起的舰摇会影响固定在航母甲板上摄像机的成像,为了补偿舰摇,提出了一种对十字线的稳定方法;该方法基于坐标变换建立了舰摇对成像影响的模型,利用舰摇角度、摄像机内外参数等已知条件,可用该模型计算出十字线位置,如果十字线被稳定,监视器上的十字线和目标像将随同舰摇一起运动,它们的相对位置不因舰摇而变化;实验结果表明,在不同舰摇角度下,根据模型计算出的十字线位置和目标位置能够吻合,在许可的舰摇范围内误差较小;此方法为十字线稳定的进一步研究提供了理论基础。更多还原

【Abstract】 Ship mistrim caused by ocean wave affects imaging of cameras fixed on deck of aircraft carrier.To compensate ship mistrim,a crosshair stabilization method was developed.The method set up the effect model of ship mistrim on imaging based on coordinate transformation.By utilizing pitch and roll degrees,intrinsic and extrinsic parameters of CCD camera etc.,the position of the crosshair can be calculated using the model.If the crosshair is stabilized,the reticles and landing aircraft will move in unison with ship’s pitch/roll excursions,and their relative positions will be independent of ship mistrim.Experiments showed that under different pitch/roll degrees,the position of the rectiles calculated from the model equals the position of the object,and errors are comparatively small in permissible mistrim.The method provides a theoretical basis for further research of crosshair stabilization.更多还原