A Linear Method for Determining Intrinsic Parameters from Two Parallel Line-Segments*

摘要

In this paper, a linear method to determining intrinsic parameters from two parallel line-segments is proposed. Constrains based on the length ratio of line-segments are used to solve the camera calibration problem from images of two parallel line-segments under different conditions. And for each setting, we can get linear solution for intrinsic parameters of a usual camera. Simulated experiments are carried out to verify the theoretical correctness and numerical robustness of our results.