Chinese Journal of Lasers, Volume. 47, Issue 12, 1204007(2020)

Inverse Depth Adaptive Weighting Based Multi-View Triangulation Method

Fang Wei1、* and Yang Kui2
Author Affiliations
  • 1School of Automation, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 2School of Instrumentation Science and Opto-Electronics Engineering, Beihang University, Beijing 100191, China
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    In the multi-view triangulation with known image observation values and camera internal and external parameters, due to the existence of observation noise, the midpoint method and the L2 back projection standard method have insufficient triangulation accuracy and efficiency, respectively. Therefore, this paper proposes an inverse depth adaptive weihting based multi-view triangulation method. First, by constructing an inverse depth model of the three-dimensional points to be estimated in a multi-view environment, the corresponding weights to the observation errors are assigned under different viewpoints. Then an unbiased estimation model of the approximate angle error for the multi-view triangulation is determined. Finally, a fixed-point iteration is carried out to quickly solve the cost function. Experimental results both on simulation and real datasets show that the proposed method can obtain a better balance between accuracy and efficiency for multi-view triangulation, and the reconstruction accuracy and the number of iterations under different noise conditions are robust.

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    Fang Wei, Yang Kui. Inverse Depth Adaptive Weighting Based Multi-View Triangulation Method[J]. Chinese Journal of Lasers, 2020, 47(12): 1204007

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    Paper Information

    Category: Measurement and metrology

    Received: Jun. 18, 2020

    Accepted: --

    Published Online: Nov. 17, 2020

    The Author Email: Wei Fang (fangwei@bupt.edu.cn)

    DOI:10.3788/CJL202047.1204007

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