色差对摄影测量精度的影响

在工业摄影测量中,由于相对精度较高,对相机的测量精度要求也相应增高。目前,常用的相机检校方法为10参数法,此方法未对色差的影响展开研究。本文通过将照片的R、G、B颜色分离,得到三组单色照片,再分别进行自检校光束法平差,对所得结果进行物方公共点转换后,发现三组单色照片与原始灰度照片的物方点精度相当,绿色分量照片处理精度较原始灰度照片有微小的提高。

Impact of chromatic aberration on photogrammetrial precision

In industrial photogrammetry,the relative precision is high,so the demand for the measurement precision is also high.At present,ten APs method was used to calibrate cameras usually.However,this method doesn't research the chromatic aberration.This article got three single color images through separating R、G、B from an image,and then carrying out self-calibration bundle adjustment,and finally carrying out public point conversion.The result showed that the precision of single color image equaled to that of raw grey image.