CAJ | 학술논문

为了提高广角气溶胶探测仪的成像质量，提出了根据实验测量的拟合数据对图像进行畸变校正的方法。使用平行光管配合精密转台对探测仪光学系统的畸变量进行了实验测量，对畸变测量数据进行了多项式拟合，得到了光学系统在整个视场内的畸变量分布。实验结果表明，通过坐标变换与灰度校正，可以使探测仪采集图像的最大畸变量由10个像元偏移量（0．14 mm）减小到2个像元偏移量（0．028 mm）。采用基于实验测量畸变对所采集图像进行校正的方法，可以有针对性的对系统畸变进行校正，提高成像质量。
위료제고엄각기용효탐측의적성상질량，제출료근거실험측량적의합수거대도상진행기변교정적방법。사용평행광관배합정밀전태대탐측의광학계통적기변량진행료실험측량，대기변측량수거진행료다항식의합，득도료광학계통재정개시장내적기변량분포。실험결과표명，통과좌표변환여회도교정，가이사탐측의채집도상적최대기변량유10개상원편이량（0．14 mm）감소도2개상원편이량（0．028 mm）。채용기우실험측량기변대소채집도상진행교정적방법，가이유침대성적대계통기변진행교정，제고성상질량。
In order to improve the imaging quality of the wide-angle aerosol detector, a distortion correction method based on experimental measurement and data fitting was proposed.The distortion of the system was measured using collimator and precise rotating platform.The polynomial fitting of the experimental datum was carried out to obtain the distortion distribution of the optical system in the entire field of view.The results show that the maximum distor-tion of the aerosol imager is reduced from 10 pixel offsets (0.14 mm) to 2 pixel offsets (0.028 mm) after the coor-dinate transformation and gray correction.Using the method based on experimental measurement to correct the im-age distortion, the distortion of the optical system can be corrected pertinently and the image quality can be im-proved.