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Updated: Oct 12, 2025

Determining 3D Flow Fields via Multi-camera Light Field Imaging
Published on: March 6, 2013
Uncertainty Estimation of Dense Optical Flow for Robust Visual Navigation
Yonhon Ng1, Hongdong Li1, Jonghyuk Kim2
1College of Engineering & Computer Science, The Australian National University, Canberra, ACT 2601, Australia.
Abstract:
This paper presents a novel dense optical-flow algorithm to solve the monocular simultaneous localisation and mapping (SLAM) problem for ground or aerial robots. Dense optical flow can effectively provide the ego-motion of the vehicle while enabling collision avoidance with the potential obstacles. Existing research has not fully utilised the uncertainty of the optical flow-at most, an isotropic Gaussian density model has been used. We estimate the full uncertainty of the optical flow and propose a new eight-point algorithm based on the statistical Mahalanobis distance. Combined with the pose-graph optimisation, the proposed method demonstrates enhanced robustness and accuracy for the public autonomous car dataset (KITTI) and aerial monocular dataset.
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