Journal of Northeastern University(Natural Science) ›› 2024, Vol. 45 ›› Issue (12): 1680-1687.DOI: 10.12068/j.issn.1005-3026.2024.12.002

• Information & Control • Previous Articles    

Three-Dimensional Reconstruction Method of Monocular Video Image Sequences

Xiao-peng SHA(), Jia-qi CAO, Wen-jing LI, Ye QIN   

  1. School of Control Engineering,Northeastern University at Qinhuangdao,Qinhuangdao 066004,China.
  • Received:2023-07-06 Online:2024-12-10 Published:2025-03-18
  • Contact: Xiao-peng SHA

Abstract:

For 3D reconstruction in uncalibrated monocular scene, due to the existence of motion blur and small baseline image, there are still problems such as blurred image, low feature matching, and reconstruction accuracy. A 3D reconstruction method of monocular vision system is proposed. Firstly, the fuzzy image in the original data is detected and removed by wavelet transform algorithm according to the edge information of the image, and the wide baseline image is screened by geometric robustness criterion to obtain clear images for 3D reconstruction. Then, an algorithm for eliminating mismatched feature points based on region division is proposed to eliminate repeated matching and mismatched feature points. Finally, three different regional growth methods are proposed to obtain more feature points for three‑dimensional point calculation. The results show that the proposed method can effectively remove mismatched feature points, improve the accuracy of feature point matching, obtain more point clouds, and improve the integrity and accuracy of the reconstructed model.

Key words: 3D reconstruction, key frame screening, feature extraction, sparse and dense, regional growth

CLC Number: