open access Improved bore-sight calibration for airborne light detection and ranging using planar patches Description: This article proposes an improved method for bore-sight calibration based on the principles of symmetry of coordinate offsets and low correlations between bore-sight angles. Date: May 9, 2016 Creator: Li, Dong; Guo, Huadong; Wang, Cheng; Dong, Pinliang & Zuo, Zhengli