CAJ | 학술논문

针对搭载平台颤振对遥感相机成像的影响，利用辅助高速面阵CCD相机拍摄高帧频图像序列，通过像元合并来补偿曝光时间不足，增加图像的亮度、对比度和信噪比，同时结合一种区域选择算法来选择用于计算的图像区域，最后使用灰度投影算法对振动位移量进行估计。实验数据表明，提出的改进算法误差为一个像元，在准确性和稳定性方面均明显优于原始算法。
침대탑재평태전진대요감상궤성상적영향，이용보조고속면진CCD상궤박섭고정빈도상서렬，통과상원합병래보상폭광시간불족，증가도상적량도、대비도화신조비，동시결합일충구역선택산법래선택용우계산적도상구역，최후사용회도투영산법대진동위이량진행고계。실험수거표명，제출적개진산법오차위일개상원，재준학성화은정성방면균명현우우원시산법。
To deal with the effect of flutter of carrying platform on remote sensing camera, motion estimation algorithm can be used to the image sequences taken by auxiliary high-speed array CCD camera during exposure to estimate the vibration.Pixel binnng is proposed to compensate the time of exposure and to improve the brightness and contrast as well as SNR of the images.And a region selection algorithm is used to select the im-age region by which we can estimate the displacement using gray projection algorithm.The experiment results show that the error is 1 pixel by utilizing the improved algorithm, which greatly enhance the accuracy and sta-bility.