摘要
在多路CCD成像中,每路图像之间存在不均匀性,造成这种不均匀性的因素十分复杂,常规算法常无法将所有因素都考虑,影响了校正效果。根据图像的非均匀性特征,论文提出了一种基于场景的,采用两点校正理论,利用每路图像之间的线性关系来进行校正的方法,与传统两点校正算法和多点校正算法校正结果进行对比,给出了对比实验的校正结果。这种算法不需要标准辐射图像就可对多路CCD图像进行实时校正。为多CCD成像系统校正提供了一种有效的方法。
The factors which lead to non-uniformity of images are very complex. The conventional methods for calibrating non-uniformity of multiple Charge Coupled Device （CCD） imaging can not consider all of these factors. According to the characters of non-uniform images of multi-CCD, a calibrating method based on the scene was proposed by using the theory of two-point calibration and finding out the tinearity of the images. Compared with the conventional two-point calibration and multi-point calibration methods, contrastive calibrating results were obtained. This method can calibrate the scene images without standard illumination images, which provides an effective way for online calibrating the multiple CCD imaging system in practical application.
出处
《光电工程》
CAS
CSCD
北大核心
2009年第3期120-124,共5页
Opto-Electronic Engineering
