CAJ | 학술논문

针对凝视观测模式下光测图像中弱小目标的检测问题，提出一种多帧频域特征累积的目标检测方法。利用恒星匹配、临帧差分等方法消除背景变化的影响，通过图像时频域特征分析，推导出递归形式频域特征累积方程，并由此检测图像中的弱小目标。实验结果表明采用多帧频域特征累积方法能将图像信噪比提高3倍以上，有利于检测出弱小目标。
침대응시관측모식하광측도상중약소목표적검측문제，제출일충다정빈역특정루적적목표검측방법。이용항성필배、림정차분등방법소제배경변화적영향，통과도상시빈역특정분석，추도출체귀형식빈역특정루적방정，병유차검측도상중적약소목표。실험결과표명채용다정빈역특정루적방법능장도상신조비제고3배이상，유리우검측출약소목표。
Aiming at the problem of tiny object detection in stare observation image sequence ,a new method based on frequency feature accumulation was proposed .First ,star matching and difference of neighbor frames were used to eliminate background of images ,and then by analy-zing time-frequency feature ,the method for accumulating frequency feature of image was ap-plied in tiny object detection .T he experiment show s that the method proposed can increase the signal-noise ratio (SNR) of image by 3 times ,and favors tiny object detection .