Euclidean upgrading from segment lengths: DLT-like algorithm and its variants

作者：

Highlights：

• A DLT-like algorithm for Euclidean upgrading from segment lengths is proposed.

• The constraint equation is parameterized in a simple way.

• The plane at infinity is directly extracted from the intermediate results.

• This algorithm has higher accuracy than the existing linear algorithms.

• Weighting and nonlinear refinement further improve the accuracy.

摘要

•A DLT-like algorithm for Euclidean upgrading from segment lengths is proposed.•The constraint equation is parameterized in a simple way.•The plane at infinity is directly extracted from the intermediate results.•This algorithm has higher accuracy than the existing linear algorithms.•Weighting and nonlinear refinement further improve the accuracy.

论文关键词：DLT-like algorithm,Euclidean upgrading,Multi-camera calibration,Segment lengths,Weighted DLT-like algorithm

论文评审过程：Received 13 March 2013, Revised 7 December 2013, Accepted 30 December 2013, Available online 10 January 2014.

论文官网地址：https://doi.org/10.1016/j.imavis.2013.12.012