Precise Upright Adjustment of Panoramic Images

Nobuyuki Kita

2021

Abstract

An equirectangular format is often used when an omnidirectional image taken by a 360c̊amera is expanded into a single image, which is referred to as a panoramic image. If an omnidirectional image is expanded into a panoramic image using the upward direction of the inclined camera, the image may look unstable and “wavy.” It is important to correct the inclination using the zenith direction as a reference; this task is called "upright adjustment." In this paper, we propose a method for upright adjustment by estimating the inclination of a camera in a wavy panoramic image using vertical lines in the environment, e.g., indoors or outdoors near a building. The advantage of the proposed method is that 3D straight lines are detected with high accuracy and high speed directly from a panoramic image without passing through a spherical image. Experimental results of upright adjustment of the wavy panoramic images taken in multiple places show that the proposed method is accurate and can be applied in a wide range of indoor and outdoor scenarios.

Paper Citation

in Harvard Style

Kita N. (2021). Precise Upright Adjustment of Panoramic Images. In Proceedings of the 16th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2021) - Volume 4: VISAPP; ISBN 978-989-758-488-6, SciTePress, pages 99-111. DOI: 10.5220/0010242600990111

in Bibtex Style

@conference{visapp21,
author={Nobuyuki Kita},
title={Precise Upright Adjustment of Panoramic Images},
booktitle={Proceedings of the 16th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2021) - Volume 4: VISAPP},
year={2021},
pages={99-111},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0010242600990111},
isbn={978-989-758-488-6},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 16th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2021) - Volume 4: VISAPP
TI - Precise Upright Adjustment of Panoramic Images
SN - 978-989-758-488-6
AU - Kita N.
PY - 2021
SP - 99
EP - 111
DO - 10.5220/0010242600990111
PB - SciTePress