Line-Sweep: Cross-Ratio for Wide-Baseline Matching and 3D Reconstruction

Srikumar Ramalingam, Michel Antunes, Dan Snow, Gim Hee Lee, Sudeep Pillai

CVPR 2015

doi:10.1109/CVPR.2015.7298728 /cvpr/2015/ramalingam2015cvpr-linesweep/

Abstract

We propose a simple and useful idea based on cross-ratio constraint for wide-baseline matching and 3D reconstruction. Most existing methods exploit feature points and planes from images. Lines have always been considered notorious for both matching and reconstruction due to the lack of good line descriptors. We propose a method to generate and match new points using virtual lines constructed using pairs of keypoints, which are obtained using standard feature point detectors. We use cross-ratio constraints to obtain an initial set of new point matches, which are subsequently used to obtain line correspondences. We develop a method that works for both calibrated and uncalibrated camera configurations. We show compelling line-matching and large-scale 3D reconstruction.

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Cite

Text

Ramalingam et al. "Line-Sweep: Cross-Ratio for Wide-Baseline Matching and 3D Reconstruction." Conference on Computer Vision and Pattern Recognition, 2015. doi:10.1109/CVPR.2015.7298728

Markdown

[Ramalingam et al. "Line-Sweep: Cross-Ratio for Wide-Baseline Matching and 3D Reconstruction." Conference on Computer Vision and Pattern Recognition, 2015.](https://mlanthology.org/cvpr/2015/ramalingam2015cvpr-linesweep/) doi:10.1109/CVPR.2015.7298728

BibTeX

@inproceedings{ramalingam2015cvpr-linesweep,
  title     = {{Line-Sweep: Cross-Ratio for Wide-Baseline Matching and 3D Reconstruction}},
  author    = {Ramalingam, Srikumar and Antunes, Michel and Snow, Dan and Lee, Gim Hee and Pillai, Sudeep},
  booktitle = {Conference on Computer Vision and Pattern Recognition},
  year      = {2015},
  doi       = {10.1109/CVPR.2015.7298728},
  url       = {https://mlanthology.org/cvpr/2015/ramalingam2015cvpr-linesweep/}
}