https://github.com/kitware/horizon_detection

https://github.com/kitware/horizon_detection

computer-vision photogrammetry

Last synced: 24 days ago
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• Host: GitHub
• URL: https://github.com/kitware/horizon_detection
• Owner: Kitware
• License: other
• Created: 2019-10-21T20:13:08.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2019-10-25T01:56:59.000Z (over 5 years ago)
• Last Synced: 2024-12-30T11:44:05.616Z (about 1 month ago)
• Topics: computer-vision, photogrammetry
• Language: MATLAB
• Size: 1.05 MB
• Stars: 1
• Watchers: 4
• Forks: 2
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.TXT

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README

        
This is the MATLAB software package for horizon detection on a single image paper [Xu et al. CVPR 2013](Xu_A_Minimum_Error_2013_CVPR_paper.pdf).

Use the following citation:

	Xu, Yiliang, Sangmin Oh, and Anthony Hoogs. 

	"A minimum error vanishing point detection approach for uncalibrated monocular images of man-made environments." 

	In Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition, pp. 1376-1383. 2013.

BibTex

	@InProceedings{Xu_2013_CVPR,

		author = {Xu, Yiliang and Oh, Sangmin and Hoogs, Anthony},

		title = {A Minimum Error Vanishing Point Detection Approach for Uncalibrated Monocular Images of Man-Made Environments},

		booktitle = {The IEEE Conference on Computer Vision and Pattern Recognition (CVPR)},

		month = {June},

		year = {2013}

	}

Copyright 2014 by Kitware, Inc. All Rights Reserved. 

Please refer to LICENSE.TXT for licensing information, or contact General Counsel, Kitware, Inc., 28 Corporate Drive, Clifton Park, NY 12065

*Software Structure*

horizon_detection.m contains the main function. 

	- extract_lsd.m: calls Line Segment Detector (LSD) C++ executable "LSD_VC.exe" to compute line segments in the input image. LSD_VC.exe read in an image and output a text file containing all detected line segments information. The Matlab script reads in this text file. This module can be substituted by other line segment detection algorithm.

	- vp_probability_EM.m: compute vanishing points given line segments that are detected.

	- horizon.m: compute horizon given vanishing points that are detected.

*Dependency*

	- Line Segment Detector (LSD) C++ executable "LSD_VC.exe" is included in this package. The source files can be found at http://www.ipol.im/pub/art/2012/gjmr-lsd/.

	- MATLAB basic package

	- MATLAB image processing toolbox (only required for visualizing results).